Avalotis Corp.; Notice of Application for a Permanent Variance and Interim Order, Grant of an Interim Order, and Request for Comments, 57704-57712 [E9-26930]
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DEPARTMENT OF LABOR
Occupational Safety and Health
Administration
[Docket No. OSHA–2009–0005]
Avalotis Corp.; Notice of Application
for a Permanent Variance and Interim
Order, Grant of an Interim Order, and
Request for Comments
AGENCY: Occupational Safety and Health
Administration (OSHA), Department of
Labor.
ACTION: Application for a permanent
variance and interim order; grant of an
interim order.
SUMMARY: Avalotis Corp. (‘‘the
applicant’’) applied for a permanent
variance from the provisions of the
OSHA standards that regulate
boatswain’s chairs and hoist towers,
specifically paragraph (o)(3) of 29 CFR
1926.452 and paragraphs (c)(1) through
(c)(4), (c)(8), (c)(13), (c)(14)(i), and
(c)(16) of 29 CFR 1926.552. In addition,
the applicant requested an interim order
based on the alternative conditions
specified by the variance application.
These alternative conditions consist of
the same conditions specified in recent
variances granted by OSHA from these
hoist-tower and boatswain’s-chair
provisions, as well as several additional
conditions that would provide workers
with protection from shearing, fall, and
struck-by hazards. Therefore, OSHA is
granting the applicant’s request for an
interim order.
DATES: Comments and requests for a
hearing must be submitted (postmarked,
sent, or received) by December 9, 2009.
The interim order specified by this
notice becomes effective on November
9, 2009.
ADDRESSES: Electronic. Comments and
requests for a hearing may be submitted
electronically at https://
www.regulations.gov, which is the
Federal eRulemaking Portal. Follow the
instructions online for submitting
comments.
Facsimile. OSHA allows facsimile
transmission of comments that are 10
pages or fewer in length (including
attachments), as well as hearing
requests. Send these comments and
requests to the OSHA Docket Office at
(202) 693–1648; hard copies of these
comments are not required. Instead of
transmitting facsimile copies of
attachments that supplement their
comments (e.g., studies and journal
articles), commenters may submit these
attachments, in triplicate hard copy, to
the OSHA Docket Office, Technical Data
Center, Room N–2625, OSHA, U.S.
PO 00000
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Department of Labor, 200 Constitution
Ave., NW., Washington, DC 20210.
These attachments must clearly identify
the sender’s name, date, subject, and
docket number (i.e., OSHA–2009–0005)
so that the Agency can attach them to
the appropriate comments.
Regular mail, express delivery, hand
(courier) delivery, and messenger
service. Submit three copies of
comments and any additional material
(e.g., studies and journal articles), as
well as hearing requests, to the OSHA
Docket Office, Docket No. OSHA–2009–
0005, Technical Data Center, Room N–
2625, OSHA, U.S. Department of Labor,
200 Constitution Ave., NW.,
Washington, DC 20210; telephone: (202)
693–2350. Please contact the OSHA
Docket Office at (202) 693–2350 for
information about security procedures
concerning the delivery of materials by
express delivery, hand delivery, and
messenger service. The hours of
operation for the OSHA Docket Office
and Department of Labor are 8:15 a.m.
to 4:45 p.m., e.t.
Instructions. All submissions must
include the Agency name and the OSHA
docket number (i.e., OSHA Docket No.
OSHA–2009–0005). OSHA places
comments and other materials,
including any personal information, in
the public docket without revision, and
these materials may be available online
at https://www.regulations.gov.
Therefore, the Agency cautions
commenters about submitting
statements they do not want made
available to the public, or submitting
comments that contain personal
information (either about themselves or
others) such as Social Security numbers,
birth dates, and medical data.
Docket. To read or download
submissions or other material in the
docket, go to https://www.regulations.gov
or to the OSHA Docket Office at the
address above. All documents in the
docket are listed in the https://
www.regulations.gov index; however,
some information (e.g., copyrighted
material) is not publicly available to
read or download through this Web site.
All submissions, including copyrighted
material, are available for inspection
and copying at the OSHA Docket Office.
FOR FURTHER INFORMATION CONTACT:
General information and press inquiries.
For general information and press
inquiries about this notice contact
Jennifer Ashley, Director, OSHA Office
of Communications, Room N–3647, U.S.
Department of Labor, 200 Constitution
Avenue, NW., Washington, DC 20210;
telephone: (202) 693–1999.
Technical information. For technical
information about this notice, contact
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MaryAnn Garrahan, Director, Office of
Technical Programs and Coordination
Activities, Room N–3655, OSHA, U.S.
Department of Labor, 200 Constitution
Avenue, NW., Washington, DC 20210;
telephone: (202) 693–2110; fax: (202)
693–1644. Copies of this Federal
Register notice. Electronic copies of this
notice are available at https://
www.regulations.gov. Electronic copies
of this notice, as well as news releases
and other relevant information, are
available on OSHA’s Web page at https://
www.osha.gov.
I. Notice of Application
Avalotis Corp. (‘‘the applicant’’)
submitted an application for a
permanent variance under Section 6(d)
of the Occupational Safety and Health
Act of 1970 (29 U.S.C. 655) and 29 CFR
1905.11 (‘‘Variances and other relief
under section 6(d)’’) (see Ex. 1—
Avalotis Corp. Application).1 The
applicant seeks a permanent variance
from 29 CFR 1926.452(o)(3), which
provides the tackle requirements for
boatswain’s chairs. The applicant also
requests a variance from paragraphs
(c)(1) through (c)(4), (c)(8), (c)(13),
(c)(14)(i), and (c)(16) of 29 CFR 1926.552
that regulate hoist towers. These latter
paragraphs specify the following
requirements:
• (c)(1)—Construction requirements
for hoist towers outside a structure;
• (c)(2)—Construction requirements
for hoist towers inside a structure;
• (c)(3)—Anchoring a hoist tower to a
structure;
• (c)(4)—Hoistway doors or gates;
• (c)(8)—Electrically interlocking
entrance doors or gates that prevent
hoist movement when the doors or gates
are open;
• (c)(13)—Emergency stop switch
located in the car;
• (c)(14)(i)—Using a minimum of two
wire ropes for drum hoisting; and
• (c)(16)—Material and component
requirements for construction of
personnel hoists.
The applicant contends that the
permanent variance would provide its
workers with a place of employment
that is at least as safe and healthful as
they would obtain under the existing
provisions. The places of employment
affected by this variance application are
the present and future projects where
the applicant constructs chimneys.
The applicant certifies that it
provided employee representatives of
current workers who would be affected
by the permanent variance with a copy
of its variance request. The applicant
1 The principal address for the applicant is:
Avalotis Corp., 400 Jones Street, Verona, PA 15147.
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also certifies that it notified its workers
of the variance request by posting a
summary of the application and
specifying where the workers can
examine a copy of the application at
prominent locations where they
normally post notices to its workers. In
addition, the applicant informed
workers and their representatives of
their right to petition the Assistant
Secretary of Labor for Occupational
Safety and Health for a hearing on this
variance application.
II. Multi-State Variance
The applicant stated that it performs
chimney work in a number of States and
Territories that operate OSHA-approved
safety and health programs under
Section 18 of the Occupational Safety
and Health Act of 1970 (29 U.S.C. 651
et seq.). Twenty-seven States and
Territories have OSHA-approved safety
and health programs.2 As part of this
variance process, the Directorate of
Cooperative and State Programs will
notify the State-Plan States and
Territories of this variance application
and advise them that, unless they object,
OSHA will assume the State’s position
regarding this application is the same as
its position regarding prior identical
variances.
Thirteen States and one Territory
have agreed to the terms of the earlier
variance requests addressing chimney
construction (i.e., Alaska, Arizona,
Indiana, Maryland, Minnesota, Nevada,
New Mexico, North Carolina, Oregon,
Puerto Rico, Tennessee, Vermont,
Virginia, and Wyoming). Four States
have imposed additional requirements
and conditions (i.e., Kentucky,
Michigan, South Carolina, and Utah),
and four States have objected to the
earlier variance requests (i.e., California,
Hawaii, Iowa, and Washington). In the
eight States that impose additional
conditions or have declined the terms of
the variance application, employers
would have to contact or apply directly
to the State-Plan Office and meet Statespecific requirements should OSHA
grant the variance request. The variance
would not be applicable to five State
Plans that cover only public-sector
workers (i.e., Connecticut, Illinois, New
Jersey, New York, and the Virgin
2 Four State-Plan States (i.e., Connecticut, Illinois,
New Jersey, and New York) and one Territory (i.e.,
Virgin Islands) limit their occupational safety and
health authority to public-sector employees only.
The 21 State-Plan States and one Territory that have
jurisdiction over both public- and private-sector
employers and employees are: Alaska, Arizona,
California, Hawaii, Indiana, Iowa, Kentucky,
Maryland, Michigan, Minnesota, Nevada, New
Mexico, North Carolina, Oregon, Puerto Rico, South
Carolina, Tennessee, Utah, Vermont, Virginia,
Washington, and Wyoming.
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Islands), and authority over variances in
these States continues to reside with
Federal OSHA.
III. Supplementary Information
A. Overview
The applicant constructs remodels,
repairs, maintains, inspects, and
demolishes tall chimneys made of
reinforced concrete, brick, and steel.
This work requires the applicant to
transport workers and construction
material to and from elevated work
platforms and scaffolds located,
respectively, inside and outside tapered
chimneys. While tapering contributes to
the stability of a chimney, it requires
frequent relocation of, and adjustments
to, the work platforms and scaffolds so
that they will fit the decreasing
circumference of the chimney as
construction progresses upwards.
To transport workers to various
heights inside and outside a chimney,
the applicant proposes to use a hoist
system that would lift and lower
personnel-transport devices (i.e.,
personnel cages, personnel platforms, or
boatswain’s chairs). The applicant also
would attach material-transport devices
such as hoppers, concrete buckets, or
other containers to the hoist system to
raise or lower construction material or
equipment inside or outside a chimney.
The applicant would use personnel
cages, personnel platforms, or
boatswain’s chairs solely to transport
workers with the tools and materials
necessary to do their work, and not to
transport only materials or tools in the
absence of workers.
B. Previous Variances From 29 CFR
1926.452(o)(3) and 1926.552(c)
Since 1973, a number of chimney
construction companies demonstrated
to OSHA that several of the hoist-tower
requirements of 29 CFR 1926.552(c)
present chimney-access problems that
pose a serious danger to their workers.
These companies received permanent
variances from these personnel-hoist
and boatswain’s-chair requirements, and
they used essentially the same alternate
apparatus and procedures that the
applicant is now proposing to use in
this variance application. The Agency
published the permanent variances for
these companies at 38 FR 8545 (April 3,
1973), 44 FR 51352 (August 31, 1979),
50 FR 20145 (May 14, 1985), 50 FR
40627 (October 4, 1985), 52 FR 22552
(June 12, 1987), 68 FR 52961 (September
8, 2003), 70 FR 72659 (December 6,
2005), 71 FR 10557 (March 1, 2006), 74
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FR 34789 (July 17, 2009) and 74 FR
41742 (August 18, 2009).3
In 1980, the Agency evaluated the
alternative conditions specified in the
permanent variances that it granted to
chimney construction companies as of
that date. In doing so, OSHA observed
hoisting operations conducted by these
companies at various construction sites.
These evaluations found that, while the
alternative conditions generally were
safe, compliance with the conditions
among the companies was uneven (see
Ex. 2—OSHA Evaluation Report).
Additionally, the National Chimney
Construction Safety and Health
Advisory Committee (NCCSHAC), an
industry-affiliated organization,
conducted evaluations of the hoist
systems that provided useful
information regarding the safety and
efficacy of the alternative conditions
(see Ex. 3—NCCSHAC Report).
The permanent variance granted by
OSHA to American Boiler and Chimney
Co. and Oak Park Chimney Corp. (see 68
FR 52961, September 8, 2003) updated
the permanent variances granted by the
Agency in the 1970s and 1980s by
clarifying the alternative conditions and
citing the most recent consensus
standards and other references. In 2009,
OSHA updated a letter of interpretation
regarding the provisions that regulate
the tackle used for boatswain’s chairs
(29 CFR 1926.452(o)(3)), as well as the
provisions specified for personnel hoists
in 29 CFR 1926.552(c)(1) through
1926.552(c)(4), 1926.552(c)(8),
1926.552(c)(13), 1926.552(c)(14)(i), and
1926.552(c)(16). The updates include
conditions that the Agency believes are
necessary to protect workers from
shearing or struck-by hazards associated
with using hoist systems in chimney
construction (see Ex. 4—2009 Revised
OSHA Letter of Interpretation). OSHA
shared the letter of interpretation with
the applicant (see Ex. 5—OSHA E-mail
to Avalotis Corp.). The applicant
reviewed the letter of interpretation and
notified OSHA that its application for
variance should be amended to include
all conditions described in the letter of
interpretation (see Ex. 6—Avalotis Corp.
Letter to OSHA). In this letter, the
applicant also requested that its
application be amended to include the
following conditions, which are
included in the most recent variances
3 Zurn Industries, Inc. received two permanent
variances from OSHA. The first variance, granted
on May 14, 1985 (50 FR 20145), addressed the
boatswain’s-chair provision (then in paragraph (l)(5)
of § 1926.451), as well as the hoist-tower
requirements of paragraphs (c)(1), (c)(2), (c)(3), and
(c)(14)(i) of § 1926.552. The second variance,
granted on June 12, 1987 (52 FR 22552), included
these same paragraphs, as well as paragraphs (c)(4),
(c)(8), (c)(13), and (c)(16) of § 1926.552.
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granted by OSHA: Notify the OSHA
Area Office nearest to the worksite, or
the appropriate State Plan Office, of the
operation prior to commencing any
chimney construction operation; and,
inform OSHA national headquarters as
soon as it has knowledge that it will
cease to do business or transfer the
activities covered by a granted variance
or interim order to a successor
company.
On the basis of its experience and
knowledge, the Agency finds that the
applicant’s request for a permanent
variance is consistent with the
permanent variances that OSHA granted
previously to other employers in the
chimney construction industry.
Therefore, the Agency believes that the
conditions specified in this variance
application will provide the applicant’s
workers with at least the same level of
safety they would receive from 29 CFR
1926.452(o)(3) and paragraphs (c)(1)
through (c)(4), (c)(8), (c)(13), (c)(14)(i),
and (c)(16) of 29 CFR 1926.552.
C. Requested Variance From 29 CFR
1926.452(o)(3)
The applicant states that it is
necessary, on occasion, to use a
boatswain’s chair to transport workers
to and from a bracket scaffold on the
outside of an existing tapered chimney
during flue installation or repair work,
or to and from an elevated scaffold
located inside a chimney that has a
tapering diameter. Paragraph (o)(3) of 29
CFR 1926.452, which regulates the
tackle used to rig a boatswain’s chair,
states that this tackle must ‘‘consist of
correct size ball bearings or bushed
blocks containing safety hooks and
properly ‘eye-spliced’ minimum fiveeighth (5⁄8) inch (1.6 cm) diameter firstgrade manila rope [or equivalent rope].’’
The primary purpose of this
paragraph is to allow a worker to safely
control the ascent, descent, and
stopping locations of the boatswain’s
chair. However, the applicant notes that
the required tackle is difficult or
impossible to operate on some chimneys
that are over 200 feet tall because of
space limitations. Therefore, as an
alternative to complying with the tackle
requirements specified by 29 CFR
1926.452(o)(3), the applicant proposes
to use the hoisting system described in
Section II.E (‘‘Proposed Alternative to
29 CFR 1926.452(o)(3) and 29 CFR
1926.552(c)’’) of this notice, both inside
and outside a chimney, to raise or lower
workers in a personnel cage to work
locations. The applicant would use a
personnel cage for this purpose to the
extent that adequate space is available;
it would use a personnel platform
whenever a personnel cage is infeasible
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because of limited space. When limited
space makes a personnel platform
infeasible, the applicant then would use
a boatswain’s chair to lift workers to
work locations. The applicant would
limit use of the boatswain’s chair to
elevations above the highest work
location that the personnel cage and
personnel platform can reach; under
these conditions, the applicant would
attach the boatswain’s chair directly to
the hoisting cable only when the
structural arrangement precludes the
safe use of the block and tackle required
by 29 CFR 1926.452(o)(3).
D. Requested Variance From 29 CFR
1926.552(c)
Paragraph (c) of 29 CFR 1926.552
specifies the requirements for enclosed
hoisting systems used to transport
personnel from one elevation to another.
This paragraph ensures that employers
transport workers safely to and from
elevated work platforms by mechanical
means during the construction,
alteration, repair, maintenance, or
demolition of structures such as
chimneys. However, this standard does
not provide specific safety requirements
for hoisting personnel to and from
elevated work platforms and scaffolds in
tapered chimneys; the tapered design
requires frequent relocation of, and
adjustment to, the work platforms and
scaffolds. The space in a tapered
chimney is not large enough or
configured so that it can accommodate
an enclosed hoist tower. Moreover,
using an enclosed hoist tower for
outside operations exposes workers to
additional fall hazards because extra
bridging and bracing must be installed
to support a walkway between the hoist
tower and the tapered chimney.
Paragraph (c)(1) of 29 CFR 1926.552
requires employers to enclose hoist
towers located outside a chimney on the
side or sides used for entrance to, and
exit from, the chimney; these enclosures
must extend the full height of the hoist
tower. The applicant asserts that it is
impractical and hazardous to locate a
hoist tower outside tapered chimneys
because it becomes increasingly
difficult, as a chimney rises, to erect,
guy, and brace a hoist tower; under
these conditions, access from the hoist
tower to the chimney or to the movable
scaffolds used in constructing the
chimney exposes workers to a serious
fall hazard. Additionally, the applicant
notes that the requirement to extend the
enclosures 10 feet above the outside
scaffolds often exposes the workers
involved in building these extensions to
dangerous wind conditions.
Paragraph (c)(2) of 29 CFR 1926.552
requires that employers enclose all four
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sides of a hoist tower even when the
tower is located inside a chimney; the
enclosure must extend the full height of
the tower. The applicant contends that
it is hazardous for workers to erect and
brace a hoist tower inside a chimney,
especially tapered chimneys, because
these structures have limited space and
cannot accommodate hoist towers;
space limitations result from chimney
design (e.g., tapering), as well as
reinforced steel projecting into the
chimney from formwork that is near the
work location.
As an alternative to complying with
the hoist-tower requirements of 29 CFR
1926.552(c)(1) and (c)(2), the applicant
proposes to use the hoist system
described below in Section II.E
(‘‘Proposed Alternative to 29 CFR
1926.452(o)(3) and 29 CFR
1926.552(c)’’) of this notice to transport
workers to and from work locations
inside and outside chimneys. Use of the
proposed hoist system would eliminate
the need for the applicant to comply
with other provisions of 29 CFR
1926.552(c) that specify requirements
for hoist towers. Therefore, the
applicant also is requesting a permanent
variance from the following related
provisions:
• (c)(3)—Anchoring the hoist tower to
a structure;
• (c)(4)—Hoistway doors or gates;
• (c)(8)—Electrically interlocking
entrance doors or gates that prevent
hoist movement when the doors or gates
are open;
• (c)(13)—Emergency stop switch
located in the car;
• (c)(14)(i)—Using a minimum of two
wire ropes for drum-type hoisting; and
• (c)(16)—Material and component
requirements for construction of
personnel hoists.
The applicant asserts that the
proposed hoisting system would protect
its workers at least as effectively as the
hoist-tower requirements of 29 CFR
1926.552(c).
E. Proposed Alternative to 29 CFR
1926.452(o)(3) and 29 CFR 1926.552(c)
To power the hoist system, the
applicant would use a hoist engine,
located and controlled outside the
chimney. The system also would consist
of a wire rope that: spools off the hoist
drum into the interior of the chimney;
passes to a footblock that redirects the
rope from the horizontal to the vertical
planes; goes from the footblock through
the overhead sheaves above the elevated
platform; and finally drops to the
bottom landing of the chimney where it
connects to a personnel- or materialtransport device. The cathead, which is
a superstructure at the top of the hoist
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system, supports the overhead sheaves.
The overhead sheaves (and the vertical
span of the hoist system) move upward
with the hoist system as chimney
construction progresses. Two guide
cables, suspended from the cathead,
eliminate swaying and rotation of the
load. If the hoist rope breaks, safety
clamps activate and grip the guide
cables to prevent the load from falling.
The applicant would use a headache
ball, located on the hoist rope directly
above the load, to counterbalance the
rope’s weight between the cathead
sheaves and the footblock.
The applicant would implement
additional conditions to improve worker
safety, including:
(1) Attaching the wire rope to the
personnel cage using a keyed-screwpin
shackle or positive-locking link;
(2) Adding limit switches to the hoist
system to prevent overtravel by the
personnel- or material-transport devices;
(3) Providing the safety factors and
other precautions required for personnel
hoists specified by the pertinent
provisions of 29 CFR 1926.552(c),
including canopies and shields to
protect workers located in a personnel
cage from material that may fall during
hoisting and other overhead activities;
(4) Providing falling-object protection
for scaffold platforms as specified by 29
CFR 1926.451(h)(1);
(5) Conducting tests and inspections
of the hoist system as required by 29
CFR 1926.20(b)(2) and 1926.552(c)(15);
(6) Establishing an accident
prevention program that conforms to 29
CFR 1926.20(b)(3);
(7) Equipping workers who use a
personnel cage, personnel platform, or
boatswain’s chair with, and ensuring
that they use, personal fall arrest
systems meeting the requirements of 29
CFR 1926.502(d);
(8) Ensuring that workers using a
personnel cage secure their personal fall
arrest system to an attachment point
located inside the cage, and that
workers using personnel platforms or
boatswain’s chairs secure their personal
fall arrest systems to a vertical lifeline;
(9) When using vertical lifelines,
securing the lifelines to the top of the
chimney and weighting the lifelines
properly or suitably affixing the lifelines
to the bottom of the chimney, and
ensuring that workers remain attached
to their lifeline during the entire period
of vertical transit;
(10) Providing instruction to each
worker who uses a personnel platform
or boatswain’s chair regarding the
shearing hazards posed by the hoist
system (e.g., work platforms, scaffolds),
and the need to keep their limbs or
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other body parts clear of these hazards
during hoisting operations;
(11) Providing the instruction on
shearing hazards before a worker uses
one of these personnel-transport devices
at the worksite; and periodically, and as
necessary, thereafter, including
whenever the worker demonstrates a
lack of knowledge about the hazard or
how to avoid it, a modification occurs
to an existing shearing hazard, or a new
shearing hazard develops at the
worksite;
(12) Attaching a readily visible
warning to each personnel platform and
boatswain’s chair notifying workers in a
language they understand of potential
shearing hazards during hoisting
operations. For warnings located on
personnel platforms, using the following
(or equivalent) wording: ‘‘Warning—To
avoid serious injury, keep your hands,
arms, feet, legs, and other parts of your
body inside this platform while it is in
motion.’’ For boatswain’s chairs, the
warning would use the following (or
equivalent) wording: ‘‘Warning—To
avoid serious injury, do not extend your
hands, arms, feet, legs, or other parts of
your body from the side or to the front
of this chair while it is in motion’’; and
(13) Establishing a clearly designated
exclusion zone around the hoist
system’s bottom landing and prohibiting
any worker from entering the exclusion
zone except to access a personnel cage,
personnel platform, boatswain’s chair,
or material-transport device, and then
only when the personnel- and materialtransport device is at the bottom landing
and not in operation.
In its revised letter of interpretation
(see Ex. 4—2009 Revised OSHA Letter
of Interpretation), OSHA revised the
requirements for using personal fall
protection systems specified in previous
variances addressing these hoist systems
(see Conditions 7 and 8, above). This
revision requires the applicant to
provide workers using personnel cages
with personal fall protection systems,
and to ensure that the workers use these
systems in accordance with 29 CFR
1926.502(d). OSHA believes this
revision will protect workers from
falling out of a personnel cage in the
event the door of the cage opens
inadvertently during lifting operations.
Conditions 10–13 are new conditions
that were added when OSHA revised its
letter of interpretation. OSHA believes
that these additional conditions are
necessary to protect workers from
shearing, fall, and struck-by hazards
associated with using hoist systems in
chimney construction. Accordingly,
conditions 10–12 address shearing
hazards that workers may encounter
while a personnel platform or
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boatswain’s chair is transporting them
to or from an elevated jobsite. During
transport, the personnel-transport
device will pass near structures,
including work platforms and scaffolds
that could crush or inflict other serious
injury on a hand, arm, foot, leg, or other
body part that extends beyond the
confines of the device. To prevent these
injuries, OSHA believes that workers
who use these devices must be able to
recognize shearing hazards at the
worksite, and how to avoid them.
Additionally, attaching a readily visible
warning of the hazards to personnel
platforms and boatswain’s chairs would
supplement and reinforce the hazard
training by reminding workers of the
hazard and how to avoid it.
The last condition (Condition 13)
requires the applicant to establish an
exclusion zone around the bottom
landing where workers access
personnel- and material-transport
devices. The applicant must ensure that
workers enter the exclusion zone only to
access a transport device that is in the
area circumscribed by the exclusion
zone, and only when the hoist system is
not in operation. This condition will
prevent a transport device that is
descending from an elevated jobsite
from striking a worker who is in or near
the bottom-landing area and is not
aware of the descending device. During
descent, it also is difficult for workers
in or on these devices to detect a worker
beneath them. Therefore, it is necessary
for the applicant to establish an
exclusion zone and ensure that workers
only enter the exclusion zone when a
transport device is at the bottom landing
and not in operation (i.e., the drive
components of the hoist system are
disengaged and the braking mechanism
is properly applied).
In its letter (Ex. 6—Avalotis Corp.
Letter to OSHA), the applicant agreed to
adopt all the conditions specified in the
August 18, 2009 letter of interpretation,
and also indicated that it would adopt
conditions that require the applicant to
notify (1) the nearest OSHA Area Office,
or appropriate State Plan Office, at least
15 days before commencing chimney
construction operations covered by the
variance application, and (2) OSHA
national headquarters as soon as an
applicant knows that it will cease doing
business or transfers the activities
covered by the variance to another
company. OSHA believes that these
notification requirements would
improve administrative oversight of the
variance program, thereby enhancing
worker safety and reducing its
administrative burden.
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III. Grant of Interim Order
In addition to requesting a permanent
variance, the applicant also requested
an interim order that would remain in
effect until the Agency makes a decision
on its application for a permanent
variance. During this period, the
applicant must comply fully with the
conditions of the interim order as an
alternative to complying with the tackle
requirements provided for boatswain’s
chairs by 29 CFR 1926.452(o)(3) and the
requirements for hoist towers specified
by paragraphs (c)(1) through (c)(4),
(c)(8), (c)(13), (c)(14)(i), and (c)(16) of 29
CFR 1926.552.
Based on its previous experience with
permanent variances from these
provisions granted to other companies,
OSHA believes that an interim order is
justified in this case. As noted above in
Section II.B (‘‘Previous Variances from
29 CFR 1926.452(o)(3) and
1926.552(c)’’) of this notice, the Agency
has granted a number of permanent
variances from these provisions since
1973. Over this period, the affected
companies have effectively used the
alternative conditions specified in the
variances. The conditions of the interim
order requested by the applicant
substantially duplicate the conditions
approved recently in the permanent
variance granted to American Boiler and
Chimney Co. and Oak Park Chimney
Corp. (see 68 FR 52961), while adding
conditions that would provide workers
with protection from shearing, fall, and
struck-by hazards. In granting a
permanent variance to American Boiler
and Chimney Co. and Oak Park
Chimney Corp., the Agency stated,
‘‘[W]hen the employers comply with the
conditions of the following order, their
workers will be exposed to working
conditions that are at least as safe and
healthful as they would be if the
employers complied with paragraph
(o)(3) of 29 CFR 1926.452, and
paragraphs (c)(1) through (c)(4), (c)(8),
(c)(13), (c)(14)(i), and (c)(16) of 29 CFR
1926.552.’’ (See 68 FR 52967.)
Based on its determination that the
alternative conditions proposed by
American Boiler and Chimney Co. and
Oak Park Chimney Corp. will protect
workers at least as effectively as the
requirements of paragraph (o)(3) of 29
CFR 1926.452 and paragraphs (c)(1)
through (c)(4), (c)(8), (c)(13), (c)(14)(i),
and (c)(16) of 29 CFR 1926.552, as well
as the additional conditions specified in
this variance application that will
protect workers from shearing, fall, and
struck-by hazards, OSHA has decided to
grant an interim order to the applicant
pursuant to the provisions of 29 CFR
1905.11(c). Accordingly, in lieu of
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complying with paragraph (o)(3) of 29
CFR 1926.452 and paragraphs (c)(1)
through (c)(4), (c)(8), (c)(13), (c)(14)(i),
and (c)(16) of 29 CFR 1926.552, the
applicant will: (1) Provide notice of this
grant of an interim order to the workers
affected by the conditions of the interim
order using the same means it used to
inform these workers of their
applications for a permanent variance;
and (2) comply with the conditions
listed below in Section IV (‘‘Specific
Conditions of the Interim Order and the
Application for a Permanent Variance’’)
of this application for the period
between the date of this Federal
Register notice and the date the Agency
publishes its final decision on the
application in the Federal Register; the
interim order will remain in effect
during this period unless OSHA
modifies or revokes it in accordance
with the requirements of 29 CFR
1905.13.
IV. Specific Conditions of the Interim
Order and the Application for a
Permanent Variance
The following conditions apply to the
interim order being granted by OSHA to
Avalotis Corp. as part of its application
for a permanent variance described in
this Federal Register notice. In addition,
these conditions specify the alternatives
to the requirements of paragraph (o)(3)
of 29 CFR 1926.452 and paragraphs
(c)(1) through (c)(4), (c)(8), (c)(13),
(c)(14)(i), and (c)(16) of 29 CFR 1926.552
that the applicant is proposing in its
application for a permanent variance.
These conditions include: 4
1. Scope
(a) The interim order/permanent
variance applies/would apply only to
tapered chimneys when the applicant
uses a hoist system during inside or
outside chimney construction to raise or
lower its workers between the bottom
landing of a chimney and an elevated
work location on the inside or outside
surface of the chimney.
(b) When using a hoist system as
specified in this interim order/
permanent variance, the applicant must/
would:
(i) Use the personnel cages, personnel
platforms, or boatswain’s chairs raised
and lowered by the hoist system solely
to transport workers with the tools and
materials necessary to do their work;
and
(ii) Attach a hopper or concrete
bucket to the hoist system to raise and
4 In these conditions, the verb ‘‘must’’ applies to
the interim order, while the verb ‘‘would’’ pertains
to the application for a permanent variance.
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lower all other materials and tools
inside or outside a chimney.
(c) Except for the requirements
specified by 29 CFR 1926.452(o)(3) and
1926.552(c)(1) through (c)(4), (c)(8),
(c)(13), (c)(14)(i), and (c)(16), the
applicant must/would comply fully
with all other applicable provisions of
29 CFR parts 1910 and 1926.
2. Replacing a Personnel Cage With a
Personnel Platform or a Boatswain’s
Chair
(a) Personnel platform. When the
applicant demonstrates that available
space makes a personnel cage for
transporting workers infeasible, it may
replace the personnel cage with a
personnel platform when it limits use of
the personnel platform to elevations
above the last work location that the
personnel cage can reach.
(b) Boatswain’s chair. The applicant
must/would:
(i) Before using a boatswain’s chair,
demonstrate that available space makes
it infeasible to use a personnel platform
for transporting workers;
(ii) Limit use of a boatswain’s chair to
elevations above the last work location
that the personnel platform can reach;
and
(iii) Use a boatswain’s chair in
accordance with block-and-tackle
requirements specified by 29 CFR
1926.452(o)(3), unless it can
demonstrate that the structural
arrangement of the chimney precludes
such use.
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3. Qualified Competent Person
(a) The applicant must/would:
(i) Provide a qualified competent
person, as specified in paragraphs (f)
and (m) of 29 CFR 1926.32, who is
responsible for ensuring that the design,
maintenance, and inspection of the
hoist system comply with the
conditions specified herein and with the
appropriate requirements of 29 CFR part
1926 (‘‘Safety and Health Regulations
for Construction’’); and
(ii) Ensure that the qualified
competent person is present at ground
level to assist in an emergency
whenever the hoist system is raising or
lowering workers.
(b) The applicant must/would use a
qualified competent person to design
and maintain the cathead described
under Condition 8 (‘‘Cathead and
Sheave’’) below.
4. Hoist Machine
(a) Type of hoist. The applicant must/
would designate the hoist machine as a
portable personnel hoist.
(b) Raising or lowering a transport.
The applicant must/would ensure that:
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(i) The hoist machine includes a basemounted drum hoist designed to control
line speed; and
(ii) Whenever it raises or lowers a
personnel or material hoist (e.g., a
personnel cage, personnel platform,
boatswain’s chair, hopper, concrete
bucket) using the hoist system:
(A) The drive components are
engaged continuously when an empty or
occupied transport is being lowered
(i.e., no ‘‘freewheeling’’);
(B) The drive system is
interconnected, on a continuous basis,
through a torque converter, mechanical
coupling, or an equivalent coupling
(e.g., electronic controller, fluid
clutches, hydraulic drives);
(C) The braking mechanism is applied
automatically when the transmission is
in the neutral position and a forwardreverse coupling or shifting
transmission is being used; and
(D) No belts are used between the
power source and the winding drum.
(c) Power source. The applicant must/
would power the hoist machine by an
air, electric, hydraulic, or internalcombustion drive mechanism.
(d) Constant-pressure control switch.
The applicant must/would:
(i) Equip the hoist machine with a
hand- or foot-operated constant-pressure
control switch (i.e., a ‘‘deadman control
switch’’) that stops the hoist
immediately upon release; and
(ii) Protect the control switch to
prevent it from activating if the hoist
machine is struck by a falling or moving
object.
(e) Line-speed indicator. The
applicant must/would:
(i) Equip the hoist machine with an
operating line-speed indicator
maintained in proper working order;
and
(ii) Ensure that the line-speed
indicator is in clear view of the hoist
operator during hoisting operations.
(f) Braking systems. The applicant
must/would equip the hoist machine
with two (2) independent braking
systems (i.e., one automatic and one
manual) located on the winding side of
the clutch or couplings, with each
braking system being capable of
stopping and holding 150 percent of the
maximum rated load.
(g) Slack-rope switch. The applicant
must/would equip the hoist machine
with a slack-rope switch to prevent
rotation of the winding drum under
slack-rope conditions.
(h) Frame. The applicant must/would
ensure that the frame of the hoist
machine is a self-supporting, rigid,
welded-steel structure, and that holding
brackets for anchor lines and legs for
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57709
anchor bolts are integral components of
the frame.
(i) Stability. The applicant must/
would secure hoist machines in position
to prevent movement, shifting, or
dislodgement.
(j) Location. The applicant must/
would:
(i) Locate the hoist machine far
enough from the footblock to obtain the
correct fleet angle for proper spooling of
the cable on the drum; and
(ii) Ensure that the fleet angle remains
between one-half degree (1⁄2°) and one
and one-half degrees (11⁄2°) for smooth
drums, and between one-half degree
(1⁄2°) and two degrees (2°) for grooved
drums, with the lead sheave centered on
the drum.5
(k) Drum and flange diameter. The
applicant must/would:
(i) Provide a winding drum for the
hoist that is at least 30 times the
diameter of the rope used for hoisting;
and
(ii) Ensure that the winding drum has
a flange diameter that is at least one and
one-half (1–1⁄2) times the winding-drum
diameter.
(l) Spooling of the rope. The applicant
must/would never spool the rope closer
than two (2) inches (5.1 cm) from the
outer edge of the winding-drum flange.
(m) Electrical system. The applicant
must/would ensure that all electrical
equipment is weatherproof.
(n) Limit switches. The applicant
must/would equip the hoist system with
limit switches and related equipment
that automatically prevent overtravel of
a personnel cage, personnel platform,
boatswain’s chair, or material-transport
device at the top of the supporting
structure and at the bottom of the
hoistway or lowest landing level.
5. Methods of Operation
(a) Worker qualifications and training.
The applicant must/would:
(i) Ensure that only trained and
experienced workers, who are
knowledgeable of hoist-system
operations, control the hoist machine;
and
(ii) Provide instruction, periodically
and as necessary, on how to operate the
hoist system to each worker who uses a
personnel cage, personnel platform, or
boatswain’s chair for transportation.
(b) Speed limitations. The applicant
must/would not operate the hoist at a
speed in excess of:
5 This provision adopts the definition of, and
specifications for, fleet angle from Cranes and
Derricks, H. I. Shapiro, et al. (eds.); New York:
McGraw-Hill; 3rd ed., 1999, page 592. Accordingly,
the fleet angle is ‘‘[t]he angle the rope leading onto
a [winding] drum makes with the line
perpendicular to the drum rotating axis when the
lead rope is making a wrap against the flange.’’
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(i) Two hundred and fifty (250) feet
(76.9 m) per minute when a personnel
cage is being used to transport workers;
(ii) One hundred (100) feet (30.5 m)
per minute when a personnel platform
or boatswain’s chair is being used to
transport workers; or
(iii) A line speed that is consistent
with the design limitations of the
system when only material is being
hoisted (i.e., using a dedicated materialtransport device such as a hopper or
concrete bucket).
(c) Communication. The applicant
must/would:
(i) Use an electronic voicecommunication system to maintain
communication between the hoist
operator and the workers located in or
on a moving personnel cage, personnel
platform, or boatswain’s chair;
(ii) Stop hoisting if, for any reason,
the communication system fails to
operate effectively; and
(iii) Resume hoisting only when the
worksite superintendent determines that
it is safe to do so.
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6. Hoist Rope
(a) Grade. The applicant must/would
use a wire rope for the hoist system (i.e.,
‘‘hoist rope’’) that consists of extraimproved plow steel, an equivalent
grade of non-rotating rope, or a regular
lay rope with a suitable swivel
mechanism.
(b) Safety factor. The applicant must/
would maintain a safety factor of at least
eight (8) times the safe workload
throughout the entire length of hoist
rope.
(c) Size. The applicant must/would
use a hoist rope that is at least one-half
(1⁄2) inch (1.3 cm) in diameter.
(d) Inspection, removal, and
replacement. The applicant must/
would:
(i) Thoroughly inspect the hoist rope
before the start of each job and on
completing a new setup;
(ii) Maintain the proper diameter-todiameter ratios between the hoist rope
and the footblock and the sheave by
inspecting the wire rope regularly (see
Conditions 7(c) and 8(d), below); and
(iii) Remove and replace the wire rope
with new wire rope when any condition
specified by 29 CFR 1926.552(a)(3)
occurs.
(e) Attachments. The applicant must/
would attach the rope to a personnel
cage, personnel platform, or boatswain’s
chair with a keyed-screwpin shackle or
positive-locking link.
(f) Wire-rope fastenings. When the
applicant uses clip fastenings (e.g., Ubolt wire-rope clips) with wire ropes, it
must/would:
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(i) Use Table H–20 of 29 CFR
1926.251 to determine the number and
spacing of clips;
(ii) Use at least three (3) drop-forged
clips at each fastening;
(iii) Install the clips with the ‘‘U’’ of
the clips on the dead end of the rope;
and
(iv) Space the clips so that the
distance between them is six (6) times
the diameter of the rope.
7. Footblock
(a) Type of block. The applicant must/
would use a footblock:
(i) Consisting of construction-type
blocks of solid single-piece bail with a
safety factor that is at least four (4) times
the safe workload, or an equivalent
block with roller bearings;
(ii) Designed for the applied loading,
size, and type of wire rope used for
hoisting;
(iii) Designed with a guard that
contains the wire rope within the
sheave groove;
(iv) Bolted rigidly to the base; and
(v) Designed and installed so that it
turns the moving wire rope to and from
the horizontal or vertical direction as
required by the direction of rope travel.
(b) Directional change. The applicant
must/would ensure that the angle of
change in the hoist rope from the
horizontal to the vertical direction at the
footblock is approximately 90°.
(c) Diameter. The applicant must/
would ensure that the line diameter of
the footblock is at least 24 times the
diameter of the hoist rope.
8. Cathead and Sheave
(a) Support. The applicant must/
would use a cathead (i.e., ‘‘overhead
support’’) that consists of a wide-flange
beam, or two (2) steel-channel sections
securely bolted back-to-back to prevent
spreading.
(b) Installation. The applicant must/
would ensure that:
(i) All sheaves revolve on shafts that
rotate on bearings; and
(ii) The bearings are mounted securely
to maintain the proper bearing position
at all times.
(c) Rope guides. The applicant must/
would provide each sheave with
appropriate rope guides to prevent the
hoist rope from leaving the sheave
grooves when the rope vibrates or
swings abnormally.
(d) Diameter. The applicant must/
would use a sheave with a diameter that
is at least 24 times the diameter of the
hoist rope.
9. Guide Ropes
(a) Number and construction. The
applicant must/would affix two (2)
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guide ropes by swivels to the cathead.
The applicant must/would ensure that
the guide ropes:
(i) Consist of steel safety cables not
less than one-half (1⁄2) inch (1.3 cm) in
diameter; and
(ii) Be free of damage or defect at all
times.
(b) Guide rope fastening and
alignment tension. The applicant must/
would fasten one end of each guide rope
securely to the overhead support, with
appropriate tension applied at the
foundation.
(c) Height. The applicant must/would
rig the guide ropes along the entire
height of the hoist-machine structure.
10. Personnel Cage
(a) Construction. The applicant must/
would ensure that the personnel cage is
of steel-frame construction and capable
of supporting a load that is four (4)
times its maximum rated load capacity.
The applicant also must/would ensure
that the personnel cage has:
(i) A top and sides that are
permanently enclosed (except for the
entrance and exit);
(ii) A floor securely fastened in place;
(iii) Walls that consist of 14-gauge,
one-half (1⁄2) inch (1.3 cm) expanded
metal mesh, or an equivalent material;
(iv) Walls that cover the full height of
the personnel cage between the floor
and the overhead covering;
(v) A sloped roof constructed of oneeighth (1⁄8) inch (0.3 cm) aluminum, or
an equivalent material;
(vi) Safe handholds (e.g., rope grips—
but not rails or hard protrusions 6) that
accommodate each occupant; and
(v) Attachment points to which
workers must/would secure their
personal fall protection systems.
(b) Overhead weight. The applicant
must/would ensure that the personnel
cage has an overhead weight (e.g., a
headache ball of appropriate weight) to
compensate for the weight of the hoist
rope between the cathead and footblock.
In addition, the applicant must/would:
(i) Ensure that the overhead weight is
capable of preventing line run; and
(ii) Use a means to restrain the
movement of the overhead weight so
that the weight does not interfere with
safe personnel hoisting.
(c) Gate. The applicant must/would
ensure that the personnel cage has a gate
that:
(i) Guards the full height of the
entrance opening; and
(ii) Has a functioning mechanical lock
that prevents accidental opening.
(d) Operating procedures. The
applicant must/would post the
6 To reduce impact hazards should workers lose
their balance because of cage movement.
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procedures for operating the personnel
cage conspicuously at the hoist
operator’s station.
(e) Capacity. The applicant must/
would:
(i) Hoist no more than four (4)
occupants in the cage at any one time;
and
(ii) Ensure that the rated load capacity
of the cage is at least 250 pounds (113.4
kg) for each occupant so hoisted.
(f) Worker notification. The applicant
must/would post a sign in each
personnel cage notifying workers of the
following conditions:
(i) The standard rated load, as
determined by the initial static drop test
specified by Condition 10(g) (‘‘Static
drop tests’’), below; and
(ii) The reduced rated load for the
specific job.
(g) Static drop tests. The applicant
must/would:
(i) Conduct static drop tests of each
personnel cage that comply with the
definition of ‘‘static drop test’’ specified
by section 3 (‘‘Definitions’’) and the
static drop test procedures provided in
Section 13 (‘‘Inspections and Tests’’) of
American National Standards Institute
(ANSI) standard A10.22–1990 (R1998)
(‘‘American National Standard for RopeGuided and Non-Guided Worker’s
Hoists—Safety Requirements’’);
(ii) Perform the initial static drop test
at 125 percent of the maximum rated
load of the personnel cage, and
subsequent drop tests at no less than
100 percent of its maximum rated load;
and
(iii) Use a personnel cage for raising
or lowering workers only when no
damage occurred to the components of
the cage as a result of the static drop
tests.
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11. Safety Clamps
(a) Fit to the guide ropes. The
applicant must/would:
(i) Fit appropriately designed and
constructed safety clamps to the guide
ropes; and
(ii) Ensure that the safety clamps do
not damage the guide ropes when in
use.
(b) Attach to the personnel cage. The
applicant must/would attach safety
clamps to each personnel cage for
gripping the guide ropes.
(c) Operation. The applicant must/
would ensure that the safety clamps
attached to the personnel cage:
(i) Operate on the ‘‘broken rope
principle’’ defined in section 3
(‘‘Definitions’’) of ANSI standard
A10.22–1990 (R1998);
(ii) Be capable of stopping and
holding a personnel cage that is carrying
100 percent of its maximum rated load
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and traveling at its maximum allowable
speed if the hoist rope breaks at the
footblock; and
(iii) Use a pre-determined and pre-set
clamping force (i.e., the ‘‘spring
compression force’’) for each hoist
system.
(d) Maintenance. The applicant must/
would keep the safety clamp assemblies
clean and functional at all times.
12. Overhead Protection
(a) The applicant must/would install
a canopy or shield over the top of the
personnel cage that is made of steel
plate at least three-sixteenth (3⁄16) of an
inch (4.763 mm) thick, or material of
equivalent strength and impact
resistance, to protect workers (i.e., both
inside and outside the chimney) from
material and debris that may fall from
above.
(b) The applicant must/would ensure
that the canopy or shield slopes to the
outside of the personnel cage.
13. Emergency-Escape Device
(a) Location. For workers using a
personnel cage, the applicant must/
would provide an emergency-escape
device in at least one of the following
locations:
(i) In the personnel cage, provided
that the device is long enough to reach
the bottom landing from the highest
possible escape point; or
(ii) At the bottom landing, provided
that a means is available in the
personnel cage for the occupants to raise
the device to the highest possible escape
point.
(b) Operating instructions. The
applicant must/would ensure that
written instructions for operating the
emergency-escape device are attached to
the device.
(c) Training. The applicant must/
would instruct each worker who uses a
personnel cage for transportation on
how to operate the emergency-escape
device:
(i) Before the worker uses a personnel
cage for transportation; and
(ii) Periodically, and as necessary,
thereafter.
14. Personnel Platforms
When the applicant elects to replace
the personnel cage with a personnel
platform in accordance with Condition
2(a), above, they must/would:
(a) Ensure that an enclosure
surrounds the platform, and that this
enclosure is at least 42 inches (106.7
cm) above the floor of the platform;
(b) Provide overhead protection when
an overhead hazard is, or could be,
present; and
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57711
(c) Comply with the applicable
scaffolding strength requirements
specified by 29 CFR 1926.451(a)(1).
15. Protecting Workers From Fall and
Shearing Hazards
(a) Fall hazards. The applicant must/
would:
(i) Before workers use personnel
cages, personnel platforms, or
boatswain’s chairs, equip the workers
with, and ensure that they use, personal
fall arrest systems that meet the
requirements of 29 CFR 1926.502(d);
(ii) Ensure that workers using
personnel cages secure their personal
fall arrest systems to attachment points
located inside the cage;
(iii) Ensure that workers using
personnel platforms and boatswain’s
chairs secure their personal fall arrest
systems to a vertical lifeline; and
(iv) When using vertical lifelines:
(A) Secure the lifelines to the top of
the chimney;
(B) Weight the lifelines properly or
suitably affix the lifelines to the bottom
of the chimney; and
(C) Ensure that workers remain
attached to their lifeline during the
entire period of vertical transit.
(b) Shearing hazards. The applicant
must/would:
(i) Provide workers who use
personnel platforms or boatswain’s
chairs with instruction on the shearing
hazards posed by the hoist system (e.g.,
work platforms, scaffolds), and the need
to keep their limbs or other body parts
clear of these hazards during hoisting
operations;
(ii) Provide the instruction on
shearing hazards:
(A) Before a worker uses a personnel
platform or boatswain’s chair at the
worksite; and
(B) Periodically, and as necessary,
thereafter, including whenever a worker
demonstrates a lack of knowledge about
the hazard or how to avoid it, a
modification occurs to an existing
shearing hazard, or a new shearing
hazard develops at the worksite; and
(iii) Attach a readily visible warning
to each personnel platform and
boatswain’s chair notifying workers in a
language they understand of potential
shearing hazards they may encounter
during hoisting operations, and that
uses the following (or equivalent)
wording:
(A) For personnel platforms:
‘‘Warning—To avoid serious injury,
keep your hands, arms, feet, legs, and
other parts of your body inside this
platform while it is in motion’’; and
(B) For boatswain’s chairs:
‘‘Warning—To avoid serious injury, do
not extend your hands, arms, feet, legs,
E:\FR\FM\09NON1.SGM
09NON1
57712
Federal Register / Vol. 74, No. 215 / Monday, November 9, 2009 / Notices
or other parts your body from the side
or to the front of this chair while it is
in motion.’’
16. Exclusion Zone
The applicant must/would:
(a) Establish a clearly designated
exclusion zone around the bottom
landing of the hoist system; and
(b) Prohibit any worker from entering
the exclusion zone except to access a
personnel- or material-transport device,
and then only when the device is at the
bottom landing and not in operation
(i.e., when the drive components of the
hoist machine are disengaged and the
braking mechanism is properly applied).
17. Inspections, Tests, and Accident
Prevention
(a) The applicant must/would:
(i) Conduct inspections of the hoist
system as required by 29 CFR
1926.20(b)(2);
(ii) Ensure that a competent person
conducts daily visual inspections of the
hoist system; and
(iii) Inspect and test the hoist system
as specified by 29 CFR 1926.552(c)(15).
(b) The applicant must/would comply
with the accident prevention
requirements of 29 CFR 1926.20(b)(3).
18. Welding
(a) The applicant must/would ensure
that only qualified welders weld
components of the hoisting system.
(b) The applicant must/would ensure
that the qualified welders:
(i) Are familiar with the weld grades,
types, and materials specified in the
design of the system; and
(ii) Perform the welding tasks in
accordance with 29 CFR part 1926,
subpart J (‘‘Welding and Cutting’’).
mstockstill on DSKH9S0YB1PROD with NOTICES
19. OSHA Notification
(a) At least 15 calendar days prior to
commencing any chimney construction
operation using the conditions specified
herein, the applicant must/would notify
the OSHA Area Office nearest to the
worksite, or the appropriate State Plan
Office, of the operation, including the
location of the operation and the date
the operation will commence;
(b) The applicant must/would inform
OSHA national headquarters as soon as
it has knowledge that it will:
(i) Cease to do business; or
(ii) Transfer the activities covered by
this permanent variance to a successor
company.
V. Authority and Signature
Jordan Barab, Acting Assistant
Secretary of Labor for Occupational
Safety and Health, U.S. Department of
Labor, 200 Constitution Ave., NW.,
VerDate Nov<24>2008
16:52 Nov 06, 2009
Jkt 220001
Washington, DC directed the
preparation of this notice. This notice is
issued under the authority specified by
Section 6(d) of the Occupational Safety
and Health Act of 1970 (29 U.S.C. 655),
Secretary of Labor’s Order No. 5–2007
(72 FR 31160), and 29 CFR part 1905.
Signed at Washington, DC, on November 2,
2009.
Jordan Barab,
Acting Assistant Secretary of Labor for
Occupational Safety and Health.
[FR Doc. E9–26930 Filed 11–6–09; 8:45 am]
BILLING CODE 4510–26–P
NATIONAL AERONAUTICS AND
SPACE ADMINISTRATION
[Notice (09–094)]
expiration date); employer/affiliation
information (name of institution,
address, country, phone); title/position
of attendee. To expedite admittance,
attendees should provide identifying
information in advance by contacting
Dr. Miller via e-mail at
j.d.miller@nasa.gov or by telephone at
(202) 358–1527 by December 2, 2009.
It is imperative that the meeting be
held on this date to accommodate the
scheduling priorities of the key
participants.
Dated: November 3, 2009.
P. Diane Rausch,
Advisory Committee Management Officer,
National Aeronautics and Space
Administration.
[FR Doc. E9–26907 Filed 11–6–09; 8:45 am]
BILLING CODE 7510–13–P
NASA International Space Station
Advisory Committee; Meeting
National Aeronautics and
Space Administration (NASA).
ACTION: Notice of meeting.
AGENCY:
SUMMARY: In accordance with the
Federal Advisory Committee Act, Public
Law 92–463, as amended, the National
Aeronautics and Space Administration
announces an open meeting of the
NASA International Space Station
Advisory Committee.
DATES: December 11, 2009, 1–2 p.m.
Eastern Standard Time.
ADDRESSES: National Aeronautics and
Space Administration Headquarters, 300
E Street, SW., Room 7H45, Washington,
DC 20546.
FOR FURTHER INFORMATION CONTACT: Dr.
J. Donald Miller, Office of External
Relations, (202) 358–1527, National
Aeronautics and Space Administration,
Washington, DC 20546–0001.
SUPPLEMENTARY INFORMATION: This
meeting will be open to the public up
to the seating capacity of the room. Five
seats will be reserved for members of
the press. The purpose of the meeting is
to assess NASA and Roscosmos plans to
support a six-person crew aboard the
International Space Station, including
transportation, crew rotation, training,
and micro meteoroid and orbital debris
shielding. Attendees will be requested
to sign a register and to comply with
NASA security requirements, including
the presentation of a valid picture ID,
before receiving an access badge.
Foreign nationals attending this meeting
will be required to provide the
following information: Full name;
gender; date/place of birth; citizenship;
visa/green card information (number,
type, expiration date); passport
information (number, country,
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NUCLEAR REGULATORY
COMMISSION
[Docket No. 40–9068; NRC–2009–0391]
Notice of Availability of Draft
Environmental Assessment and
Opportunity To Provide Comments for
Exemption Request for Lost Creek ISR,
LLC, Sweetwater County, WY
AGENCY: U.S. Nuclear Regulatory
Commission.
ACTION: Notice of availability.
DATES: Comments regarding this draft
Environmental Assessment must be
received by December 9, 2009.
FOR FURTHER INFORMATION CONTACT:
Stephen J. Cohen, Team Leader,
Uranium Recovery Licensing Branch,
Division of Waste Management and
Environmental Protection, Office of
Federal and State Materials and
Environmental Management Programs,
U.S. Nuclear Regulatory Commission,
Washington, DC, 20555. Telephone:
(301) 401–7182; fax number: (301) 415–
5369; e-mail: stephen.cohen@nrc.gov.
SUPPLEMENTARY INFORMATION: The U.S.
Nuclear Regulatory Commission (NRC)
staff, pursuant to 10 CFR 51.33, is
publishing a draft environmental
assessment (EA) for public review and
comment. The draft EA pertains to the
planned issuance of an exemption from
the commencement of construction
requirements in 10 CFR 40.32(e) to Lost
Creek ISR, LLC. The request for this
exemption was submitted to the NRC
staff on July 2, 2009. Also pending
before the NRC is Lost Creek’s earlier
license application for authorization to
operate an in situ recovery (ISR)
uranium milling facility in Sweetwater
County, Wyoming. Issuance of the
E:\FR\FM\09NON1.SGM
09NON1
Agencies
[Federal Register Volume 74, Number 215 (Monday, November 9, 2009)]
[Notices]
[Pages 57704-57712]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E9-26930]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF LABOR
Occupational Safety and Health Administration
[Docket No. OSHA-2009-0005]
Avalotis Corp.; Notice of Application for a Permanent Variance
and Interim Order, Grant of an Interim Order, and Request for Comments
AGENCY: Occupational Safety and Health Administration (OSHA),
Department of Labor.
ACTION: Application for a permanent variance and interim order; grant
of an interim order.
-----------------------------------------------------------------------
SUMMARY: Avalotis Corp. (``the applicant'') applied for a permanent
variance from the provisions of the OSHA standards that regulate
boatswain's chairs and hoist towers, specifically paragraph (o)(3) of
29 CFR 1926.452 and paragraphs (c)(1) through (c)(4), (c)(8), (c)(13),
(c)(14)(i), and (c)(16) of 29 CFR 1926.552. In addition, the applicant
requested an interim order based on the alternative conditions
specified by the variance application. These alternative conditions
consist of the same conditions specified in recent variances granted by
OSHA from these hoist-tower and boatswain's-chair provisions, as well
as several additional conditions that would provide workers with
protection from shearing, fall, and struck-by hazards. Therefore, OSHA
is granting the applicant's request for an interim order.
DATES: Comments and requests for a hearing must be submitted
(postmarked, sent, or received) by December 9, 2009. The interim order
specified by this notice becomes effective on November 9, 2009.
ADDRESSES: Electronic. Comments and requests for a hearing may be
submitted electronically at https://www.regulations.gov, which is the
Federal eRulemaking Portal. Follow the instructions online for
submitting comments.
Facsimile. OSHA allows facsimile transmission of comments that are
10 pages or fewer in length (including attachments), as well as hearing
requests. Send these comments and requests to the OSHA Docket Office at
(202) 693-1648; hard copies of these comments are not required. Instead
of transmitting facsimile copies of attachments that supplement their
comments (e.g., studies and journal articles), commenters may submit
these attachments, in triplicate hard copy, to the OSHA Docket Office,
Technical Data Center, Room N-2625, OSHA, U.S. Department of Labor, 200
Constitution Ave., NW., Washington, DC 20210. These attachments must
clearly identify the sender's name, date, subject, and docket number
(i.e., OSHA-2009-0005) so that the Agency can attach them to the
appropriate comments.
Regular mail, express delivery, hand (courier) delivery, and
messenger service. Submit three copies of comments and any additional
material (e.g., studies and journal articles), as well as hearing
requests, to the OSHA Docket Office, Docket No. OSHA-2009-0005,
Technical Data Center, Room N-2625, OSHA, U.S. Department of Labor, 200
Constitution Ave., NW., Washington, DC 20210; telephone: (202) 693-
2350. Please contact the OSHA Docket Office at (202) 693-2350 for
information about security procedures concerning the delivery of
materials by express delivery, hand delivery, and messenger service.
The hours of operation for the OSHA Docket Office and Department of
Labor are 8:15 a.m. to 4:45 p.m., e.t.
Instructions. All submissions must include the Agency name and the
OSHA docket number (i.e., OSHA Docket No. OSHA-2009-0005). OSHA places
comments and other materials, including any personal information, in
the public docket without revision, and these materials may be
available online at https://www.regulations.gov. Therefore, the Agency
cautions commenters about submitting statements they do not want made
available to the public, or submitting comments that contain personal
information (either about themselves or others) such as Social Security
numbers, birth dates, and medical data.
Docket. To read or download submissions or other material in the
docket, go to https://www.regulations.gov or to the OSHA Docket Office
at the address above. All documents in the docket are listed in the
https://www.regulations.gov index; however, some information (e.g.,
copyrighted material) is not publicly available to read or download
through this Web site. All submissions, including copyrighted material,
are available for inspection and copying at the OSHA Docket Office.
FOR FURTHER INFORMATION CONTACT: General information and press
inquiries. For general information and press inquiries about this
notice contact Jennifer Ashley, Director, OSHA Office of
Communications, Room N-3647, U.S. Department of Labor, 200 Constitution
Avenue, NW., Washington, DC 20210; telephone: (202) 693-1999.
Technical information. For technical information about this notice,
contact
[[Page 57705]]
MaryAnn Garrahan, Director, Office of Technical Programs and
Coordination Activities, Room N-3655, OSHA, U.S. Department of Labor,
200 Constitution Avenue, NW., Washington, DC 20210; telephone: (202)
693-2110; fax: (202) 693-1644. Copies of this Federal Register notice.
Electronic copies of this notice are available at https://www.regulations.gov. Electronic copies of this notice, as well as news
releases and other relevant information, are available on OSHA's Web
page at https://www.osha.gov.
I. Notice of Application
Avalotis Corp. (``the applicant'') submitted an application for a
permanent variance under Section 6(d) of the Occupational Safety and
Health Act of 1970 (29 U.S.C. 655) and 29 CFR 1905.11 (``Variances and
other relief under section 6(d)'') (see Ex. 1--Avalotis Corp.
Application).\1\ The applicant seeks a permanent variance from 29 CFR
1926.452(o)(3), which provides the tackle requirements for boatswain's
chairs. The applicant also requests a variance from paragraphs (c)(1)
through (c)(4), (c)(8), (c)(13), (c)(14)(i), and (c)(16) of 29 CFR
1926.552 that regulate hoist towers. These latter paragraphs specify
the following requirements:
---------------------------------------------------------------------------
\1\ The principal address for the applicant is: Avalotis Corp.,
400 Jones Street, Verona, PA 15147.
---------------------------------------------------------------------------
(c)(1)--Construction requirements for hoist towers outside
a structure;
(c)(2)--Construction requirements for hoist towers inside
a structure;
(c)(3)--Anchoring a hoist tower to a structure;
(c)(4)--Hoistway doors or gates;
(c)(8)--Electrically interlocking entrance doors or gates
that prevent hoist movement when the doors or gates are open;
(c)(13)--Emergency stop switch located in the car;
(c)(14)(i)--Using a minimum of two wire ropes for drum
hoisting; and
(c)(16)--Material and component requirements for
construction of personnel hoists.
The applicant contends that the permanent variance would provide
its workers with a place of employment that is at least as safe and
healthful as they would obtain under the existing provisions. The
places of employment affected by this variance application are the
present and future projects where the applicant constructs chimneys.
The applicant certifies that it provided employee representatives
of current workers who would be affected by the permanent variance with
a copy of its variance request. The applicant also certifies that it
notified its workers of the variance request by posting a summary of
the application and specifying where the workers can examine a copy of
the application at prominent locations where they normally post notices
to its workers. In addition, the applicant informed workers and their
representatives of their right to petition the Assistant Secretary of
Labor for Occupational Safety and Health for a hearing on this variance
application.
II. Multi-State Variance
The applicant stated that it performs chimney work in a number of
States and Territories that operate OSHA-approved safety and health
programs under Section 18 of the Occupational Safety and Health Act of
1970 (29 U.S.C. 651 et seq.). Twenty-seven States and Territories have
OSHA-approved safety and health programs.\2\ As part of this variance
process, the Directorate of Cooperative and State Programs will notify
the State-Plan States and Territories of this variance application and
advise them that, unless they object, OSHA will assume the State's
position regarding this application is the same as its position
regarding prior identical variances.
---------------------------------------------------------------------------
\2\ Four State-Plan States (i.e., Connecticut, Illinois, New
Jersey, and New York) and one Territory (i.e., Virgin Islands) limit
their occupational safety and health authority to public-sector
employees only. The 21 State-Plan States and one Territory that have
jurisdiction over both public- and private-sector employers and
employees are: Alaska, Arizona, California, Hawaii, Indiana, Iowa,
Kentucky, Maryland, Michigan, Minnesota, Nevada, New Mexico, North
Carolina, Oregon, Puerto Rico, South Carolina, Tennessee, Utah,
Vermont, Virginia, Washington, and Wyoming.
---------------------------------------------------------------------------
Thirteen States and one Territory have agreed to the terms of the
earlier variance requests addressing chimney construction (i.e.,
Alaska, Arizona, Indiana, Maryland, Minnesota, Nevada, New Mexico,
North Carolina, Oregon, Puerto Rico, Tennessee, Vermont, Virginia, and
Wyoming). Four States have imposed additional requirements and
conditions (i.e., Kentucky, Michigan, South Carolina, and Utah), and
four States have objected to the earlier variance requests (i.e.,
California, Hawaii, Iowa, and Washington). In the eight States that
impose additional conditions or have declined the terms of the variance
application, employers would have to contact or apply directly to the
State-Plan Office and meet State-specific requirements should OSHA
grant the variance request. The variance would not be applicable to
five State Plans that cover only public-sector workers (i.e.,
Connecticut, Illinois, New Jersey, New York, and the Virgin Islands),
and authority over variances in these States continues to reside with
Federal OSHA.
III. Supplementary Information
A. Overview
The applicant constructs remodels, repairs, maintains, inspects,
and demolishes tall chimneys made of reinforced concrete, brick, and
steel. This work requires the applicant to transport workers and
construction material to and from elevated work platforms and scaffolds
located, respectively, inside and outside tapered chimneys. While
tapering contributes to the stability of a chimney, it requires
frequent relocation of, and adjustments to, the work platforms and
scaffolds so that they will fit the decreasing circumference of the
chimney as construction progresses upwards.
To transport workers to various heights inside and outside a
chimney, the applicant proposes to use a hoist system that would lift
and lower personnel-transport devices (i.e., personnel cages, personnel
platforms, or boatswain's chairs). The applicant also would attach
material-transport devices such as hoppers, concrete buckets, or other
containers to the hoist system to raise or lower construction material
or equipment inside or outside a chimney. The applicant would use
personnel cages, personnel platforms, or boatswain's chairs solely to
transport workers with the tools and materials necessary to do their
work, and not to transport only materials or tools in the absence of
workers.
B. Previous Variances From 29 CFR 1926.452(o)(3) and 1926.552(c)
Since 1973, a number of chimney construction companies demonstrated
to OSHA that several of the hoist-tower requirements of 29 CFR
1926.552(c) present chimney-access problems that pose a serious danger
to their workers. These companies received permanent variances from
these personnel-hoist and boatswain's-chair requirements, and they used
essentially the same alternate apparatus and procedures that the
applicant is now proposing to use in this variance application. The
Agency published the permanent variances for these companies at 38 FR
8545 (April 3, 1973), 44 FR 51352 (August 31, 1979), 50 FR 20145 (May
14, 1985), 50 FR 40627 (October 4, 1985), 52 FR 22552 (June 12, 1987),
68 FR 52961 (September 8, 2003), 70 FR 72659 (December 6, 2005), 71 FR
10557 (March 1, 2006), 74
[[Page 57706]]
FR 34789 (July 17, 2009) and 74 FR 41742 (August 18, 2009).\3\
---------------------------------------------------------------------------
\3\ Zurn Industries, Inc. received two permanent variances from
OSHA. The first variance, granted on May 14, 1985 (50 FR 20145),
addressed the boatswain's-chair provision (then in paragraph (l)(5)
of Sec. 1926.451), as well as the hoist-tower requirements of
paragraphs (c)(1), (c)(2), (c)(3), and (c)(14)(i) of Sec. 1926.552.
The second variance, granted on June 12, 1987 (52 FR 22552),
included these same paragraphs, as well as paragraphs (c)(4),
(c)(8), (c)(13), and (c)(16) of Sec. 1926.552.
---------------------------------------------------------------------------
In 1980, the Agency evaluated the alternative conditions specified
in the permanent variances that it granted to chimney construction
companies as of that date. In doing so, OSHA observed hoisting
operations conducted by these companies at various construction sites.
These evaluations found that, while the alternative conditions
generally were safe, compliance with the conditions among the companies
was uneven (see Ex. 2--OSHA Evaluation Report). Additionally, the
National Chimney Construction Safety and Health Advisory Committee
(NCCSHAC), an industry-affiliated organization, conducted evaluations
of the hoist systems that provided useful information regarding the
safety and efficacy of the alternative conditions (see Ex. 3--NCCSHAC
Report).
The permanent variance granted by OSHA to American Boiler and
Chimney Co. and Oak Park Chimney Corp. (see 68 FR 52961, September 8,
2003) updated the permanent variances granted by the Agency in the
1970s and 1980s by clarifying the alternative conditions and citing the
most recent consensus standards and other references. In 2009, OSHA
updated a letter of interpretation regarding the provisions that
regulate the tackle used for boatswain's chairs (29 CFR
1926.452(o)(3)), as well as the provisions specified for personnel
hoists in 29 CFR 1926.552(c)(1) through 1926.552(c)(4), 1926.552(c)(8),
1926.552(c)(13), 1926.552(c)(14)(i), and 1926.552(c)(16). The updates
include conditions that the Agency believes are necessary to protect
workers from shearing or struck-by hazards associated with using hoist
systems in chimney construction (see Ex. 4--2009 Revised OSHA Letter of
Interpretation). OSHA shared the letter of interpretation with the
applicant (see Ex. 5--OSHA E-mail to Avalotis Corp.). The applicant
reviewed the letter of interpretation and notified OSHA that its
application for variance should be amended to include all conditions
described in the letter of interpretation (see Ex. 6--Avalotis Corp.
Letter to OSHA). In this letter, the applicant also requested that its
application be amended to include the following conditions, which are
included in the most recent variances granted by OSHA: Notify the OSHA
Area Office nearest to the worksite, or the appropriate State Plan
Office, of the operation prior to commencing any chimney construction
operation; and, inform OSHA national headquarters as soon as it has
knowledge that it will cease to do business or transfer the activities
covered by a granted variance or interim order to a successor company.
On the basis of its experience and knowledge, the Agency finds that
the applicant's request for a permanent variance is consistent with the
permanent variances that OSHA granted previously to other employers in
the chimney construction industry. Therefore, the Agency believes that
the conditions specified in this variance application will provide the
applicant's workers with at least the same level of safety they would
receive from 29 CFR 1926.452(o)(3) and paragraphs (c)(1) through
(c)(4), (c)(8), (c)(13), (c)(14)(i), and (c)(16) of 29 CFR 1926.552.
C. Requested Variance From 29 CFR 1926.452(o)(3)
The applicant states that it is necessary, on occasion, to use a
boatswain's chair to transport workers to and from a bracket scaffold
on the outside of an existing tapered chimney during flue installation
or repair work, or to and from an elevated scaffold located inside a
chimney that has a tapering diameter. Paragraph (o)(3) of 29 CFR
1926.452, which regulates the tackle used to rig a boatswain's chair,
states that this tackle must ``consist of correct size ball bearings or
bushed blocks containing safety hooks and properly `eye-spliced'
minimum five-eighth (\5/8\) inch (1.6 cm) diameter first-grade manila
rope [or equivalent rope].''
The primary purpose of this paragraph is to allow a worker to
safely control the ascent, descent, and stopping locations of the
boatswain's chair. However, the applicant notes that the required
tackle is difficult or impossible to operate on some chimneys that are
over 200 feet tall because of space limitations. Therefore, as an
alternative to complying with the tackle requirements specified by 29
CFR 1926.452(o)(3), the applicant proposes to use the hoisting system
described in Section II.E (``Proposed Alternative to 29 CFR
1926.452(o)(3) and 29 CFR 1926.552(c)'') of this notice, both inside
and outside a chimney, to raise or lower workers in a personnel cage to
work locations. The applicant would use a personnel cage for this
purpose to the extent that adequate space is available; it would use a
personnel platform whenever a personnel cage is infeasible because of
limited space. When limited space makes a personnel platform
infeasible, the applicant then would use a boatswain's chair to lift
workers to work locations. The applicant would limit use of the
boatswain's chair to elevations above the highest work location that
the personnel cage and personnel platform can reach; under these
conditions, the applicant would attach the boatswain's chair directly
to the hoisting cable only when the structural arrangement precludes
the safe use of the block and tackle required by 29 CFR 1926.452(o)(3).
D. Requested Variance From 29 CFR 1926.552(c)
Paragraph (c) of 29 CFR 1926.552 specifies the requirements for
enclosed hoisting systems used to transport personnel from one
elevation to another. This paragraph ensures that employers transport
workers safely to and from elevated work platforms by mechanical means
during the construction, alteration, repair, maintenance, or demolition
of structures such as chimneys. However, this standard does not provide
specific safety requirements for hoisting personnel to and from
elevated work platforms and scaffolds in tapered chimneys; the tapered
design requires frequent relocation of, and adjustment to, the work
platforms and scaffolds. The space in a tapered chimney is not large
enough or configured so that it can accommodate an enclosed hoist
tower. Moreover, using an enclosed hoist tower for outside operations
exposes workers to additional fall hazards because extra bridging and
bracing must be installed to support a walkway between the hoist tower
and the tapered chimney.
Paragraph (c)(1) of 29 CFR 1926.552 requires employers to enclose
hoist towers located outside a chimney on the side or sides used for
entrance to, and exit from, the chimney; these enclosures must extend
the full height of the hoist tower. The applicant asserts that it is
impractical and hazardous to locate a hoist tower outside tapered
chimneys because it becomes increasingly difficult, as a chimney rises,
to erect, guy, and brace a hoist tower; under these conditions, access
from the hoist tower to the chimney or to the movable scaffolds used in
constructing the chimney exposes workers to a serious fall hazard.
Additionally, the applicant notes that the requirement to extend the
enclosures 10 feet above the outside scaffolds often exposes the
workers involved in building these extensions to dangerous wind
conditions.
Paragraph (c)(2) of 29 CFR 1926.552 requires that employers enclose
all four
[[Page 57707]]
sides of a hoist tower even when the tower is located inside a chimney;
the enclosure must extend the full height of the tower. The applicant
contends that it is hazardous for workers to erect and brace a hoist
tower inside a chimney, especially tapered chimneys, because these
structures have limited space and cannot accommodate hoist towers;
space limitations result from chimney design (e.g., tapering), as well
as reinforced steel projecting into the chimney from formwork that is
near the work location.
As an alternative to complying with the hoist-tower requirements of
29 CFR 1926.552(c)(1) and (c)(2), the applicant proposes to use the
hoist system described below in Section II.E (``Proposed Alternative to
29 CFR 1926.452(o)(3) and 29 CFR 1926.552(c)'') of this notice to
transport workers to and from work locations inside and outside
chimneys. Use of the proposed hoist system would eliminate the need for
the applicant to comply with other provisions of 29 CFR 1926.552(c)
that specify requirements for hoist towers. Therefore, the applicant
also is requesting a permanent variance from the following related
provisions:
(c)(3)--Anchoring the hoist tower to a structure;
(c)(4)--Hoistway doors or gates;
(c)(8)--Electrically interlocking entrance doors or gates
that prevent hoist movement when the doors or gates are open;
(c)(13)--Emergency stop switch located in the car;
(c)(14)(i)--Using a minimum of two wire ropes for drum-
type hoisting; and
(c)(16)--Material and component requirements for
construction of personnel hoists.
The applicant asserts that the proposed hoisting system would
protect its workers at least as effectively as the hoist-tower
requirements of 29 CFR 1926.552(c).
E. Proposed Alternative to 29 CFR 1926.452(o)(3) and 29 CFR 1926.552(c)
To power the hoist system, the applicant would use a hoist engine,
located and controlled outside the chimney. The system also would
consist of a wire rope that: spools off the hoist drum into the
interior of the chimney; passes to a footblock that redirects the rope
from the horizontal to the vertical planes; goes from the footblock
through the overhead sheaves above the elevated platform; and finally
drops to the bottom landing of the chimney where it connects to a
personnel- or material-transport device. The cathead, which is a
superstructure at the top of the hoist system, supports the overhead
sheaves. The overhead sheaves (and the vertical span of the hoist
system) move upward with the hoist system as chimney construction
progresses. Two guide cables, suspended from the cathead, eliminate
swaying and rotation of the load. If the hoist rope breaks, safety
clamps activate and grip the guide cables to prevent the load from
falling. The applicant would use a headache ball, located on the hoist
rope directly above the load, to counterbalance the rope's weight
between the cathead sheaves and the footblock.
The applicant would implement additional conditions to improve
worker safety, including:
(1) Attaching the wire rope to the personnel cage using a keyed-
screwpin shackle or positive-locking link;
(2) Adding limit switches to the hoist system to prevent overtravel
by the personnel- or material-transport devices;
(3) Providing the safety factors and other precautions required for
personnel hoists specified by the pertinent provisions of 29 CFR
1926.552(c), including canopies and shields to protect workers located
in a personnel cage from material that may fall during hoisting and
other overhead activities;
(4) Providing falling-object protection for scaffold platforms as
specified by 29 CFR 1926.451(h)(1);
(5) Conducting tests and inspections of the hoist system as
required by 29 CFR 1926.20(b)(2) and 1926.552(c)(15);
(6) Establishing an accident prevention program that conforms to 29
CFR 1926.20(b)(3);
(7) Equipping workers who use a personnel cage, personnel platform,
or boatswain's chair with, and ensuring that they use, personal fall
arrest systems meeting the requirements of 29 CFR 1926.502(d);
(8) Ensuring that workers using a personnel cage secure their
personal fall arrest system to an attachment point located inside the
cage, and that workers using personnel platforms or boatswain's chairs
secure their personal fall arrest systems to a vertical lifeline;
(9) When using vertical lifelines, securing the lifelines to the
top of the chimney and weighting the lifelines properly or suitably
affixing the lifelines to the bottom of the chimney, and ensuring that
workers remain attached to their lifeline during the entire period of
vertical transit;
(10) Providing instruction to each worker who uses a personnel
platform or boatswain's chair regarding the shearing hazards posed by
the hoist system (e.g., work platforms, scaffolds), and the need to
keep their limbs or other body parts clear of these hazards during
hoisting operations;
(11) Providing the instruction on shearing hazards before a worker
uses one of these personnel-transport devices at the worksite; and
periodically, and as necessary, thereafter, including whenever the
worker demonstrates a lack of knowledge about the hazard or how to
avoid it, a modification occurs to an existing shearing hazard, or a
new shearing hazard develops at the worksite;
(12) Attaching a readily visible warning to each personnel platform
and boatswain's chair notifying workers in a language they understand
of potential shearing hazards during hoisting operations. For warnings
located on personnel platforms, using the following (or equivalent)
wording: ``Warning--To avoid serious injury, keep your hands, arms,
feet, legs, and other parts of your body inside this platform while it
is in motion.'' For boatswain's chairs, the warning would use the
following (or equivalent) wording: ``Warning--To avoid serious injury,
do not extend your hands, arms, feet, legs, or other parts of your body
from the side or to the front of this chair while it is in motion'';
and
(13) Establishing a clearly designated exclusion zone around the
hoist system's bottom landing and prohibiting any worker from entering
the exclusion zone except to access a personnel cage, personnel
platform, boatswain's chair, or material-transport device, and then
only when the personnel- and material-transport device is at the bottom
landing and not in operation.
In its revised letter of interpretation (see Ex. 4--2009 Revised
OSHA Letter of Interpretation), OSHA revised the requirements for using
personal fall protection systems specified in previous variances
addressing these hoist systems (see Conditions 7 and 8, above). This
revision requires the applicant to provide workers using personnel
cages with personal fall protection systems, and to ensure that the
workers use these systems in accordance with 29 CFR 1926.502(d). OSHA
believes this revision will protect workers from falling out of a
personnel cage in the event the door of the cage opens inadvertently
during lifting operations.
Conditions 10-13 are new conditions that were added when OSHA
revised its letter of interpretation. OSHA believes that these
additional conditions are necessary to protect workers from shearing,
fall, and struck-by hazards associated with using hoist systems in
chimney construction. Accordingly, conditions 10-12 address shearing
hazards that workers may encounter while a personnel platform or
[[Page 57708]]
boatswain's chair is transporting them to or from an elevated jobsite.
During transport, the personnel-transport device will pass near
structures, including work platforms and scaffolds that could crush or
inflict other serious injury on a hand, arm, foot, leg, or other body
part that extends beyond the confines of the device. To prevent these
injuries, OSHA believes that workers who use these devices must be able
to recognize shearing hazards at the worksite, and how to avoid them.
Additionally, attaching a readily visible warning of the hazards to
personnel platforms and boatswain's chairs would supplement and
reinforce the hazard training by reminding workers of the hazard and
how to avoid it.
The last condition (Condition 13) requires the applicant to
establish an exclusion zone around the bottom landing where workers
access personnel- and material-transport devices. The applicant must
ensure that workers enter the exclusion zone only to access a transport
device that is in the area circumscribed by the exclusion zone, and
only when the hoist system is not in operation. This condition will
prevent a transport device that is descending from an elevated jobsite
from striking a worker who is in or near the bottom-landing area and is
not aware of the descending device. During descent, it also is
difficult for workers in or on these devices to detect a worker beneath
them. Therefore, it is necessary for the applicant to establish an
exclusion zone and ensure that workers only enter the exclusion zone
when a transport device is at the bottom landing and not in operation
(i.e., the drive components of the hoist system are disengaged and the
braking mechanism is properly applied).
In its letter (Ex. 6--Avalotis Corp. Letter to OSHA), the applicant
agreed to adopt all the conditions specified in the August 18, 2009
letter of interpretation, and also indicated that it would adopt
conditions that require the applicant to notify (1) the nearest OSHA
Area Office, or appropriate State Plan Office, at least 15 days before
commencing chimney construction operations covered by the variance
application, and (2) OSHA national headquarters as soon as an applicant
knows that it will cease doing business or transfers the activities
covered by the variance to another company. OSHA believes that these
notification requirements would improve administrative oversight of the
variance program, thereby enhancing worker safety and reducing its
administrative burden.
III. Grant of Interim Order
In addition to requesting a permanent variance, the applicant also
requested an interim order that would remain in effect until the Agency
makes a decision on its application for a permanent variance. During
this period, the applicant must comply fully with the conditions of the
interim order as an alternative to complying with the tackle
requirements provided for boatswain's chairs by 29 CFR 1926.452(o)(3)
and the requirements for hoist towers specified by paragraphs (c)(1)
through (c)(4), (c)(8), (c)(13), (c)(14)(i), and (c)(16) of 29 CFR
1926.552.
Based on its previous experience with permanent variances from
these provisions granted to other companies, OSHA believes that an
interim order is justified in this case. As noted above in Section II.B
(``Previous Variances from 29 CFR 1926.452(o)(3) and 1926.552(c)'') of
this notice, the Agency has granted a number of permanent variances
from these provisions since 1973. Over this period, the affected
companies have effectively used the alternative conditions specified in
the variances. The conditions of the interim order requested by the
applicant substantially duplicate the conditions approved recently in
the permanent variance granted to American Boiler and Chimney Co. and
Oak Park Chimney Corp. (see 68 FR 52961), while adding conditions that
would provide workers with protection from shearing, fall, and struck-
by hazards. In granting a permanent variance to American Boiler and
Chimney Co. and Oak Park Chimney Corp., the Agency stated, ``[W]hen the
employers comply with the conditions of the following order, their
workers will be exposed to working conditions that are at least as safe
and healthful as they would be if the employers complied with paragraph
(o)(3) of 29 CFR 1926.452, and paragraphs (c)(1) through (c)(4),
(c)(8), (c)(13), (c)(14)(i), and (c)(16) of 29 CFR 1926.552.'' (See 68
FR 52967.)
Based on its determination that the alternative conditions proposed
by American Boiler and Chimney Co. and Oak Park Chimney Corp. will
protect workers at least as effectively as the requirements of
paragraph (o)(3) of 29 CFR 1926.452 and paragraphs (c)(1) through
(c)(4), (c)(8), (c)(13), (c)(14)(i), and (c)(16) of 29 CFR 1926.552, as
well as the additional conditions specified in this variance
application that will protect workers from shearing, fall, and struck-
by hazards, OSHA has decided to grant an interim order to the applicant
pursuant to the provisions of 29 CFR 1905.11(c). Accordingly, in lieu
of complying with paragraph (o)(3) of 29 CFR 1926.452 and paragraphs
(c)(1) through (c)(4), (c)(8), (c)(13), (c)(14)(i), and (c)(16) of 29
CFR 1926.552, the applicant will: (1) Provide notice of this grant of
an interim order to the workers affected by the conditions of the
interim order using the same means it used to inform these workers of
their applications for a permanent variance; and (2) comply with the
conditions listed below in Section IV (``Specific Conditions of the
Interim Order and the Application for a Permanent Variance'') of this
application for the period between the date of this Federal Register
notice and the date the Agency publishes its final decision on the
application in the Federal Register; the interim order will remain in
effect during this period unless OSHA modifies or revokes it in
accordance with the requirements of 29 CFR 1905.13.
IV. Specific Conditions of the Interim Order and the Application for a
Permanent Variance
The following conditions apply to the interim order being granted
by OSHA to Avalotis Corp. as part of its application for a permanent
variance described in this Federal Register notice. In addition, these
conditions specify the alternatives to the requirements of paragraph
(o)(3) of 29 CFR 1926.452 and paragraphs (c)(1) through (c)(4), (c)(8),
(c)(13), (c)(14)(i), and (c)(16) of 29 CFR 1926.552 that the applicant
is proposing in its application for a permanent variance. These
conditions include: \4\
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\4\ In these conditions, the verb ``must'' applies to the
interim order, while the verb ``would'' pertains to the application
for a permanent variance.
---------------------------------------------------------------------------
1. Scope
(a) The interim order/permanent variance applies/would apply only
to tapered chimneys when the applicant uses a hoist system during
inside or outside chimney construction to raise or lower its workers
between the bottom landing of a chimney and an elevated work location
on the inside or outside surface of the chimney.
(b) When using a hoist system as specified in this interim order/
permanent variance, the applicant must/would:
(i) Use the personnel cages, personnel platforms, or boatswain's
chairs raised and lowered by the hoist system solely to transport
workers with the tools and materials necessary to do their work; and
(ii) Attach a hopper or concrete bucket to the hoist system to
raise and
[[Page 57709]]
lower all other materials and tools inside or outside a chimney.
(c) Except for the requirements specified by 29 CFR 1926.452(o)(3)
and 1926.552(c)(1) through (c)(4), (c)(8), (c)(13), (c)(14)(i), and
(c)(16), the applicant must/would comply fully with all other
applicable provisions of 29 CFR parts 1910 and 1926.
2. Replacing a Personnel Cage With a Personnel Platform or a
Boatswain's Chair
(a) Personnel platform. When the applicant demonstrates that
available space makes a personnel cage for transporting workers
infeasible, it may replace the personnel cage with a personnel platform
when it limits use of the personnel platform to elevations above the
last work location that the personnel cage can reach.
(b) Boatswain's chair. The applicant must/would:
(i) Before using a boatswain's chair, demonstrate that available
space makes it infeasible to use a personnel platform for transporting
workers;
(ii) Limit use of a boatswain's chair to elevations above the last
work location that the personnel platform can reach; and
(iii) Use a boatswain's chair in accordance with block-and-tackle
requirements specified by 29 CFR 1926.452(o)(3), unless it can
demonstrate that the structural arrangement of the chimney precludes
such use.
3. Qualified Competent Person
(a) The applicant must/would:
(i) Provide a qualified competent person, as specified in
paragraphs (f) and (m) of 29 CFR 1926.32, who is responsible for
ensuring that the design, maintenance, and inspection of the hoist
system comply with the conditions specified herein and with the
appropriate requirements of 29 CFR part 1926 (``Safety and Health
Regulations for Construction''); and
(ii) Ensure that the qualified competent person is present at
ground level to assist in an emergency whenever the hoist system is
raising or lowering workers.
(b) The applicant must/would use a qualified competent person to
design and maintain the cathead described under Condition 8 (``Cathead
and Sheave'') below.
4. Hoist Machine
(a) Type of hoist. The applicant must/would designate the hoist
machine as a portable personnel hoist.
(b) Raising or lowering a transport. The applicant must/would
ensure that:
(i) The hoist machine includes a base-mounted drum hoist designed
to control line speed; and
(ii) Whenever it raises or lowers a personnel or material hoist
(e.g., a personnel cage, personnel platform, boatswain's chair, hopper,
concrete bucket) using the hoist system:
(A) The drive components are engaged continuously when an empty or
occupied transport is being lowered (i.e., no ``freewheeling'');
(B) The drive system is interconnected, on a continuous basis,
through a torque converter, mechanical coupling, or an equivalent
coupling (e.g., electronic controller, fluid clutches, hydraulic
drives);
(C) The braking mechanism is applied automatically when the
transmission is in the neutral position and a forward-reverse coupling
or shifting transmission is being used; and
(D) No belts are used between the power source and the winding
drum.
(c) Power source. The applicant must/would power the hoist machine
by an air, electric, hydraulic, or internal-combustion drive mechanism.
(d) Constant-pressure control switch. The applicant must/would:
(i) Equip the hoist machine with a hand- or foot-operated constant-
pressure control switch (i.e., a ``deadman control switch'') that stops
the hoist immediately upon release; and
(ii) Protect the control switch to prevent it from activating if
the hoist machine is struck by a falling or moving object.
(e) Line-speed indicator. The applicant must/would:
(i) Equip the hoist machine with an operating line-speed indicator
maintained in proper working order; and
(ii) Ensure that the line-speed indicator is in clear view of the
hoist operator during hoisting operations.
(f) Braking systems. The applicant must/would equip the hoist
machine with two (2) independent braking systems (i.e., one automatic
and one manual) located on the winding side of the clutch or couplings,
with each braking system being capable of stopping and holding 150
percent of the maximum rated load.
(g) Slack-rope switch. The applicant must/would equip the hoist
machine with a slack-rope switch to prevent rotation of the winding
drum under slack-rope conditions.
(h) Frame. The applicant must/would ensure that the frame of the
hoist machine is a self-supporting, rigid, welded-steel structure, and
that holding brackets for anchor lines and legs for anchor bolts are
integral components of the frame.
(i) Stability. The applicant must/would secure hoist machines in
position to prevent movement, shifting, or dislodgement.
(j) Location. The applicant must/would:
(i) Locate the hoist machine far enough from the footblock to
obtain the correct fleet angle for proper spooling of the cable on the
drum; and
(ii) Ensure that the fleet angle remains between one-half degree
(\1/2\[deg]) and one and one-half degrees (1\1/2\[deg]) for smooth
drums, and between one-half degree (\1/2\[deg]) and two degrees
(2[deg]) for grooved drums, with the lead sheave centered on the
drum.\5\
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\5\ This provision adopts the definition of, and specifications
for, fleet angle from Cranes and Derricks, H. I. Shapiro, et al.
(eds.); New York: McGraw-Hill; 3rd ed., 1999, page 592. Accordingly,
the fleet angle is ``[t]he angle the rope leading onto a [winding]
drum makes with the line perpendicular to the drum rotating axis
when the lead rope is making a wrap against the flange.''
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(k) Drum and flange diameter. The applicant must/would:
(i) Provide a winding drum for the hoist that is at least 30 times
the diameter of the rope used for hoisting; and
(ii) Ensure that the winding drum has a flange diameter that is at
least one and one-half (1-\1/2\) times the winding-drum diameter.
(l) Spooling of the rope. The applicant must/would never spool the
rope closer than two (2) inches (5.1 cm) from the outer edge of the
winding-drum flange.
(m) Electrical system. The applicant must/would ensure that all
electrical equipment is weatherproof.
(n) Limit switches. The applicant must/would equip the hoist system
with limit switches and related equipment that automatically prevent
overtravel of a personnel cage, personnel platform, boatswain's chair,
or material-transport device at the top of the supporting structure and
at the bottom of the hoistway or lowest landing level.
5. Methods of Operation
(a) Worker qualifications and training. The applicant must/would:
(i) Ensure that only trained and experienced workers, who are
knowledgeable of hoist-system operations, control the hoist machine;
and
(ii) Provide instruction, periodically and as necessary, on how to
operate the hoist system to each worker who uses a personnel cage,
personnel platform, or boatswain's chair for transportation.
(b) Speed limitations. The applicant must/would not operate the
hoist at a speed in excess of:
[[Page 57710]]
(i) Two hundred and fifty (250) feet (76.9 m) per minute when a
personnel cage is being used to transport workers;
(ii) One hundred (100) feet (30.5 m) per minute when a personnel
platform or boatswain's chair is being used to transport workers; or
(iii) A line speed that is consistent with the design limitations
of the system when only material is being hoisted (i.e., using a
dedicated material-transport device such as a hopper or concrete
bucket).
(c) Communication. The applicant must/would:
(i) Use an electronic voice-communication system to maintain
communication between the hoist operator and the workers located in or
on a moving personnel cage, personnel platform, or boatswain's chair;
(ii) Stop hoisting if, for any reason, the communication system
fails to operate effectively; and
(iii) Resume hoisting only when the worksite superintendent
determines that it is safe to do so.
6. Hoist Rope
(a) Grade. The applicant must/would use a wire rope for the hoist
system (i.e., ``hoist rope'') that consists of extra-improved plow
steel, an equivalent grade of non-rotating rope, or a regular lay rope
with a suitable swivel mechanism.
(b) Safety factor. The applicant must/would maintain a safety
factor of at least eight (8) times the safe workload throughout the
entire length of hoist rope.
(c) Size. The applicant must/would use a hoist rope that is at
least one-half (\1/2\) inch (1.3 cm) in diameter.
(d) Inspection, removal, and replacement. The applicant must/would:
(i) Thoroughly inspect the hoist rope before the start of each job
and on completing a new setup;
(ii) Maintain the proper diameter-to-diameter ratios between the
hoist rope and the footblock and the sheave by inspecting the wire rope
regularly (see Conditions 7(c) and 8(d), below); and
(iii) Remove and replace the wire rope with new wire rope when any
condition specified by 29 CFR 1926.552(a)(3) occurs.
(e) Attachments. The applicant must/would attach the rope to a
personnel cage, personnel platform, or boatswain's chair with a keyed-
screwpin shackle or positive-locking link.
(f) Wire-rope fastenings. When the applicant uses clip fastenings
(e.g., U-bolt wire-rope clips) with wire ropes, it must/would:
(i) Use Table H-20 of 29 CFR 1926.251 to determine the number and
spacing of clips;
(ii) Use at least three (3) drop-forged clips at each fastening;
(iii) Install the clips with the ``U'' of the clips on the dead end
of the rope; and
(iv) Space the clips so that the distance between them is six (6)
times the diameter of the rope.
7. Footblock
(a) Type of block. The applicant must/would use a footblock:
(i) Consisting of construction-type blocks of solid single-piece
bail with a safety factor that is at least four (4) times the safe
workload, or an equivalent block with roller bearings;
(ii) Designed for the applied loading, size, and type of wire rope
used for hoisting;
(iii) Designed with a guard that contains the wire rope within the
sheave groove;
(iv) Bolted rigidly to the base; and
(v) Designed and installed so that it turns the moving wire rope to
and from the horizontal or vertical direction as required by the
direction of rope travel.
(b) Directional change. The applicant must/would ensure that the
angle of change in the hoist rope from the horizontal to the vertical
direction at the footblock is approximately 90[deg].
(c) Diameter. The applicant must/would ensure that the line
diameter of the footblock is at least 24 times the diameter of the
hoist rope.
8. Cathead and Sheave
(a) Support. The applicant must/would use a cathead (i.e.,
``overhead support'') that consists of a wide-flange beam, or two (2)
steel-channel sections securely bolted back-to-back to prevent
spreading.
(b) Installation. The applicant must/would ensure that:
(i) All sheaves revolve on shafts that rotate on bearings; and
(ii) The bearings are mounted securely to maintain the proper
bearing position at all times.
(c) Rope guides. The applicant must/would provide each sheave with
appropriate rope guides to prevent the hoist rope from leaving the
sheave grooves when the rope vibrates or swings abnormally.
(d) Diameter. The applicant must/would use a sheave with a diameter
that is at least 24 times the diameter of the hoist rope.
9. Guide Ropes
(a) Number and construction. The applicant must/would affix two (2)
guide ropes by swivels to the cathead. The applicant must/would ensure
that the guide ropes:
(i) Consist of steel safety cables not less than one-half (\1/2\)
inch (1.3 cm) in diameter; and
(ii) Be free of damage or defect at all times.
(b) Guide rope fastening and alignment tension. The applicant must/
would fasten one end of each guide rope securely to the overhead
support, with appropriate tension applied at the foundation.
(c) Height. The applicant must/would rig the guide ropes along the
entire height of the hoist-machine structure.
10. Personnel Cage
(a) Construction. The applicant must/would ensure that the
personnel cage is of steel-frame construction and capable of supporting
a load that is four (4) times its maximum rated load capacity. The
applicant also must/would ensure that the personnel cage has:
(i) A top and sides that are permanently enclosed (except for the
entrance and exit);
(ii) A floor securely fastened in place;
(iii) Walls that consist of 14-gauge, one-half (\1/2\) inch (1.3
cm) expanded metal mesh, or an equivalent material;
(iv) Walls that cover the full height of the personnel cage between
the floor and the overhead covering;
(v) A sloped roof constructed of one-eighth (\1/8\) inch (0.3 cm)
aluminum, or an equivalent material;
(vi) Safe handholds (e.g., rope grips--but not rails or hard
protrusions \6\) that accommodate each occupant; and
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\6\ To reduce impact hazards should workers lose their balance
because of cage movement.
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(v) Attachment points to which workers must/would secure their
personal fall protection systems.
(b) Overhead weight. The applicant must/would ensure that the
personnel cage has an overhead weight (e.g., a headache ball of
appropriate weight) to compensate for the weight of the hoist rope
between the cathead and footblock. In addition, the applicant must/
would:
(i) Ensure that the overhead weight is capable of preventing line
run; and
(ii) Use a means to restrain the movement of the overhead weight so
that the weight does not interfere with safe personnel hoisting.
(c) Gate. The applicant must/would ensure that the personnel cage
has a gate that:
(i) Guards the full height of the entrance opening; and
(ii) Has a functioning mechanical lock that prevents accidental
opening.
(d) Operating procedures. The applicant must/would post the
[[Page 57711]]
procedures for operating the personnel cage conspicuously at the hoist
operator's station.
(e) Capacity. The applicant must/would:
(i) Hoist no more than four (4) occupants in the cage at any one
time; and
(ii) Ensure that the rated load capacity of the cage is at least
250 pounds (113.4 kg) for each occupant so hoisted.
(f) Worker notification. The applicant must/would post a sign in
each personnel cage notifying workers of the following conditions:
(i) The standard rated load, as determined by the initial static
drop test specified by Condition 10(g) (``Static drop tests''), below;
and
(ii) The reduced rated load for the specific job.
(g) Static drop tests. The applicant must/would:
(i) Conduct static drop tests of each personnel cage that comply
with the definition of ``static drop test'' specified by section 3
(``Definitions'') and the static drop test procedures provided in
Section 13 (``Inspections and Tests'') of American National Standards
Institute (ANSI) standard A10.22-1990 (R1998) (``American National
Standard for Rope-Guided and Non-Guided Worker's Hoists--Safety
Requirements'');
(ii) Perform the initial static drop test at 125 percent of the
maximum rated load of the personnel cage, and subsequent drop tests at
no less than 100 percent of its maximum rated load; and
(iii) Use a personnel cage for raising or lowering workers only
when no damage occurred to the components of the cage as a result of
the static drop tests.
11. Safety Clamps
(a) Fit to the guide ropes. The applicant must/would:
(i) Fit appropriately designed and constructed safety clamps to the
guide ropes; and
(ii) Ensure that the safety clamps do not damage the guide ropes
when in use.
(b) Attach to the personnel cage. The applicant must/would attach
safety clamps to each personnel cage for gripping the guide ropes.
(c) Operation. The applicant must/would ensure that the safety
clamps attached to the personnel cage:
(i) Operate on the ``broken rope principle'' defined in section 3
(``Definitions'') of ANSI standard A10.22-1990 (R1998);
(ii) Be capable of stopping and holding a personnel cage that is
carrying 100 percent of its maximum rated load and traveling at its
maximum allowable speed if the hoist rope breaks at the footblock; and
(iii) Use a pre-determined and pre-set clamping force (i.e., the
``spring compression force'') for each hoist system.
(d) Maintenance. The applicant must/would keep the safety clamp
assemblies clean and functional at all times.
12. Overhead Protection
(a) The applicant must/would install a canopy or shield over the
top of the personnel cage that is made of steel plate at least three-
sixteenth (\3/16\) of an inch (4.763 mm) thick, or material of
equivalent strength and impact resistance, to protect workers (i.e.,
both inside and outside the chimney) from material and debris that may
fall from above.
(b) The applicant must/would ensure that the canopy or shield
slopes to the outside of the personnel cage.
13. Emergency-Escape Device
(a) Location. For workers using a personnel cage, the applicant
must/would provide an emergency-escape device in at least one of the
following locations:
(i) In the personnel cage, provided that the device is long enough
to reach the bottom landing from the highest possible escape point; or
(ii) At the bottom landing, provided that a means is available in
the personnel cage for the occupants to raise the device to the highest
possible escape point.
(b) Operating instructions. The applicant must/would ensure that
written instructions for operating the emergency-escape device are
attached to the device.
(c) Training. The applicant must/would instruct each worker who
uses a personnel cage for transportation on how to operate the
emergency-escape device:
(i) Before the worker uses a personnel cage for transportation; and
(ii) Periodically, and as necessary, thereafter.
14. Personnel Platforms
When the applicant elects to replace the personnel cage with a
personnel platform in accordance with Condition 2(a), above, they must/
would:
(a) Ensure that an enclosure surrounds the platform, and that this
enclosure is at least 42 inches (106.7 cm) above the floor of the
platform;
(b) Provide overhead protection when an overhead hazard is, or
could be, present; and
(c) Comply with the applicable scaffolding strength requirements
specified by 29 CFR 1926.451(a)(1).
15. Protecting Workers From Fall and Shearing Hazards
(a) Fall hazards. The applicant must/would:
(i) Before workers use personnel cages, personnel platforms, or
boatswain's chairs, equip the workers with, and ensure that they use,
personal fall arrest systems that meet the requirements of 29 CFR
1926.502(d);
(ii) Ensure that workers using personnel cages secure their
personal fall arrest systems to attachment points located inside the
cage;
(iii) Ensure that workers using personnel platforms and boatswain's
chairs secure their personal fall arrest systems to a vertical
lifeline; and
(iv) When using vertical lifelines:
(A) Secure the lifelines to the top of the chimney;
(B) Weight the lifelines properly or suitably affix the lifelines
to the bottom of the chimney; and
(C) Ensure that workers remain attached to their lifeline during
the entire period of vertical transit.
(b) Shearing hazards. The applicant must/would:
(i) Provide workers who use personnel platforms or boatswain's
chairs with instruction on the shearing hazards posed by the hoist
system (e.g., work platforms, scaffolds), and the need to keep their
limbs or other body parts clear of these hazards during hoisting
operations;
(ii) Provide the instruction on shearing hazards:
(A) Before a worker uses a personnel platform or boatswain's chair
at the worksite; and
(B) Periodically, and as necessary, thereafter, including whenever
a worker demonstrates a lack of knowledge about the hazard or how to
avoid it, a modification occurs to an existing shearing hazard, or a
new shearing hazard develops at the worksite; and
(iii) Attach a readily visible warning to each personnel platform
and boatswain's chair notifying workers in a language they understand
of potential shearing hazards they may encounter during hoisting
operations, and that uses the following (or equivalent) wording:
(A) For personnel platforms: ``Warning--To avoid serious injury,
keep your hands, arms, feet, legs, and other parts of your body inside
this platform while it is in motion''; and
(B) For boatswain's chairs: ``Warning--To avoid serious injury, do
not extend your hands, arms, feet, legs,
[[Page 57712]]
or other parts your body from the side or to the front of this chair
while it is in motion.''
16. Exclusion Zone
The applicant must/would:
(a) Establish a clearly designated exclusion zone around the bottom
landing of the hoist system; and
(b) Prohibit any worker from entering the exclusion zone except to
access a personnel- or material-transport device, and then only when
the device is at the bottom landing and not in operation (i.e., when
the drive components of the hoist machine are disengaged and the
braking mechanism is properly applied).
17. Inspections, Tests, and Accident Prevention
(a) The applicant must/would:
(i) Conduct inspections of the hoist system as required by 29 CFR
1926.20(b)(2);
(ii) Ensure that a competent person conducts daily visual
inspections of the hoist system; and
(iii) Inspect and test the hoist system as specified by 29 CFR
1926.552(c)(15).
(b) The applicant must/would comply with the accident prevention
requirements of 29 CFR 1926.20(b)(3).
18. Welding
(a) The applicant must/would ensure that only qualified welders
weld components of the hoisting system.
(b) The applicant must/would ensure that the qualified welders:
(i) Are familiar with the weld grades, types, and materials
specified in the design of the system; and
(ii) Perform the welding tasks in accordance with 29 CFR part 1926,
subpart J (``Welding and Cutting'').
19. OSHA Notification
(a) At least 15 calendar days prior to commencing any chimney
construction operation using the conditions specified herein, the
applicant must/would notify the OSHA Area Office nearest to the
worksite, or the appropriate State Plan Office, of the operation,
including the location of the operation and the date the operation will
commence;
(b) The applicant must/would inform OSHA national headquarters as
soon as it has knowledge that it will:
(i) Cease to do business; or
(ii) Transfer the activities covered by this permanent variance to
a successor company.
V. Authority and Signature
Jordan Barab, Acting Assistant Secretary of Labor for Occupational
Safety and Health, U.S. Department of Labor, 200 Constitution Ave.,
NW., Washington, DC directed the preparation of this notice. This
notice is issued under the authority specified by Section 6(d) of the
Occupational Safety and Health Act of 1970 (29 U.S.C. 655), Secretary
of Labor's Order No. 5-2007 (72 FR 31160), and 29 CFR part 1905.
Signed at Washington, DC, on November 2, 2009.
Jordan Barab,
Acting Assistant Secretary of Labor for Occupational Safety and Health.
[FR Doc. E9-26930 Filed 11-6-09; 8:45 am]
BILLING CODE 4510-26-P