Current through Reg. 49, No. 38; September 20, 2024
(a) General
provisions. The general work practices in this section are minimum requirements
for protection of public health for standard projects using full containment in
a public building and do not constitute complete or sufficient specifications
and plans for an asbestos abatement project. An asbestos abatement project may
have specifications and plans for an asbestos abatement activity that are
specific to the project and are more detailed or stringent than the
requirements of this section so long as the work practices specified are as
protective of the public health as the general requirements in this section.
These specifications and plans, to the extent they do not conflict with other
applicable federal and state law must be followed as a requirement of this
chapter. Otherwise, the general work practices described in this section must
be used for asbestos removal that does not meet the conditions required to use
alternative methods described in Subchapter M (relating to Alternative Asbestos
Practices and Procedures in a Public Building).
(1) Subject to the following conditions, and
if otherwise consistent with other applicable federal and state law, a licensed
asbestos consultant may specify work practices that vary from the requirements
of this section as long as the work practices specified are as protective of
public health.
(A) A licensed asbestos
consultant who designs a project that includes dry removal or no negative air
must submit a written request for approval to DSHS, including the project
specifications and plans or a written description of the design. The request
must include the licensed asbestos consultant's certification that the design
is as protective of public health as the work practices described in this
section and the consultant's basis for that conclusion. The request must
include documentation that a certified industrial hygienist or a professional
engineer licensed in Texas approved the design. The consultant must not begin
the project without written approval from DSHS. The licensee must clearly
describe the approved variance on the notification form.
(B) A licensed asbestos consultant who
designs a project with work practices other than dry removal or no negative air
that differ from this section must document the variance on DSHS's notification
form. The licensee must clearly describe on the notification form the work
practices and demonstrate how the specific work practices are as protective of
public health as the work practices in this section. DSHS may disapprove the
proposed variation after receiving notice or documentation under this
subparagraph or any other information related to the variation if DSHS does not
or cannot determine that the work practice variance is as protective of public
health as the work practices in this section.
(C) The asbestos consultant must, upon
request by DSHS, provide additional documentation and justification to support
any variance.
(2) A
licensed asbestos contractor must follow the specifications and plans for a
design that varies from the general work practices in compliance with this
section.
(3) In addition to the
requirements of this section, abatement practices must be carried out in
accordance with federal standards for asbestos abatement and waste disposal in
40 CFR §
61.145 (relating to Standard for demolition
and renovation) and §61.150 (relating to Standard for waste disposal for
manufacturing, fabricating, demolition, renovation, and spraying
operations).
(4) ACBM must be
removed, encapsulated, or enclosed within a regulated area that is demarcated.
Except as provided in § 296.213 of this chapter (relating to Asbestos
Operations and Maintenance (O&M) Practices and Procedures for O&M
Licensees in a Public Building), § 296.231 of this chapter (relating to
Alternative Practices and Procedures for Removal of Asbestos-Containing
Resilient Floor-Covering Material in a Public Building), § 296.232 of this
chapter (relating to Alternative Asbestos Abatement Practices and Procedures
for Certain Nonfriable Asbestos-Containing Building Material (ACBM) in a Public
Building), and § 296.234 of this chapter (relating to Alternative
Practices and Procedures for Removal of Whole Components of Intact
Asbestos-Containing Material (ACM) in a Public Building), or, after a
clearance-level assessment is completed as required in § 296.233 of this
chapter (relating to Alternative Asbestos Practices and Procedures for Small
Projects and Repetitive Tasks in a Public Building), removal of ACBM must take
place within a containment.
(5)
Except as otherwise provided in this paragraph or by other applicable law,
access to the regulated area must be limited to:
(A) licensees;
(B) emergency responders;
(C) licensed, registered, or accredited
building professionals required for emergency situations, as determined by a
licensed asbestos consultant;
(D)
appropriate governmental inspectors;
(E) authorized personnel, in accordance with
29 CFR §
1926.1101(e) (relating to
Asbestos); and
(F) a building owner
or building owner's authorized representative, if authorized by the licensed
asbestos abatement contractor, and may enter a containment if accompanied by
the contractor, licensed asbestos abatement supervisor, licensed asbestos
consultant, or the consultant's designated licensed asbestos project manager or
licensed AMT/PM. A building owner or building owner's authorized representative
who enters containment must wear at a minimum the personal protective equipment
required for workers performing the asbestos-related activity, must follow the
specified decontamination procedures when exiting the containment, and must
comply with all other applicable health and safety
procedures.
(b) Containment construction.
(1) Plastic sheeting. When specified by a
licensed asbestos consultant that fire retardant plastic sheeting must be used,
it must be certified by the Underwriters Laboratory (UL) as being fire
retardant.
(2) Objects within
containment. All uncontaminated movable objects must be removed from the
containment before the start of asbestos abatement. Contaminated non-porous
items that are to be salvaged or reused must be decontaminated. Porous items
that are contaminated must be disposed of as ACWM. All non-movable objects that
remain in the containment must be decontaminated and covered with a minimum of
4-mil thick plastic sheeting attached securely in place.
(3) Critical barriers. A regulated area
within which asbestos abatement is to be conducted must be separated from
adjacent areas by a minimum of one impermeable barrier, such as plastic
sheeting attached securely in place. Any opening between a containment and
adjacent areas must be sealed, including a window, doorway, elevator opening,
corridor entrance, ventilation opening, drain, duct, grill, grate, diffuser,
skylight, and lay-in suspended ceiling grid system where the space above the
grid is open to other rooms. The HVAC system must be isolated from the
regulated area, as required in paragraph (9) of this subsection. A penetration
of the sheeting that could permit air infiltration or an air leak through the
barrier must be sealed, except the make-up air provision and the means of entry
and exit. When a critical barrier is placed over a large opening, such as a
corridor entrance or when isolating a portion of a hallway or a room, the
critical barrier becomes the containment wall and the plastic sheeting
requirements in paragraphs (4) and (5) of this subsection apply in addition to
the requirements of this paragraph.
(4) Floor abatement preparation. Floors must
be sealed to prevent water leakage by performing the following floor abatement
preparation. All floor surfaces must be completely covered by a minimum of two
layers of 6-mil thick plastic sheeting. Floor sheeting must extend up sidewalls
at least 12 inches and be sized to minimize the number of seams. Seams must not
be located at wall-to-floor joints. When asbestos abatement includes wall
removal, the asbestos consultant must specify how removal will occur and how
the practice will be at least as protective of public health as the minimum
requirements of this section.
(5)
Wall abatement preparation. All wall surfaces must be completely covered by a
minimum of two layers of 4-mil thick plastic sheeting. Wall sheeting must be
installed so as to minimize seams and must extend beyond wall-to-floor joints
at least 12 inches. The wall sheeting must overlap the floor sheeting. Seams
must not be located at wall-to-wall joints. Where feasible, a viewing window
must be included in the wall for each 260 linear feet or fraction of that
distance that permits the viewing of at least 51% of the abatement work area.
At least one viewing window must be included in the wall, unless a licensed
asbestos consultant specifies that a viewing window is not feasible. The window
must be constructed of a transparent, shatter-resistant panel, also called
acrylic or acrylic glass, which measures approximately 18 inches by 18 inches.
The window must be at a reasonable height for viewing.
(6) Bag-out area. A licensed asbestos
consultant must specify when a bag-out area is required as part of containment.
At a minimum, a bag-out area is a two-stage area connected to the containment,
separated by airlocks, with a rinse station separated from the bagging-room. A
bag-out area must not be used to decontaminate personnel.
(7) Prohibited activities in a regulated
area. The asbestos abatement contractor and asbestos consultant must ensure
that their employees do not eat, drink, smoke, chew tobacco or gum, or apply
cosmetics in the regulated area. Food or drink containers, coolers, tobacco
products, gum, and cosmetics are not permitted in the regulated area.
(8) Decontamination area. The containment
must include an attached personnel decontamination area. The area must consist
of a clean room, shower room, and equipment room. Each room must be at least 30
inches by 30 inches wide and 75 inches tall. Each room must be separated from
the other and from the containment by airlocks so that air does not escape
outside the containment and that air flows from the outside to the inside of
containment through the decontamination area. The shower room must be provided
with soap and water and, where feasible, hot and cold water where the
temperature can be adjusted by the user. A licensed asbestos consultant must
specify a remote decontamination area when it is not feasible to attach the
decontamination area to the containment. The consultant must specify procedures
for minimizing the migration of fibers from the containment to the remote
decontamination area. Except where remote decontamination area is specified,
all persons must exit the containment through the shower before entering the
clean room. An asbestos-contaminated individual or item must not enter the
clean room. A licensed asbestos abatement supervisor must ensure that the
decontamination area is fully operational before and during any asbestos
abatement activity. Any person exiting containment must:
(A) remove all gross contamination and debris
from protective clothing before entering the equipment room;
(B) remove protective clothing in the
equipment room and deposit the clothing in impermeable plastic bags or
containers labeled as required in subsection (c)(4) of this section;
(C) not remove respirators in the equipment
room;
(D) shower before entering
the clean room; and
(E) enter the
clean room before changing into street clothes.
(9) HVAC equipment. The HVAC system must be
isolated from the regulated area. Any supply and return opening and any seam in
system components must be sealed with either impermeable plastic sheeting,
tape, or both. An old filter must be disposed of as asbestos waste.
(10) Warning signs. A warning sign that
complies with 29 CFR §
1926.1101, must be displayed at all entrances
to regulated area, including an area requiring a critical barrier that can be
used to gain entrance to the containment, such as a door, window, or hallway.
To protect the public from accidental entry, a warning sign must be displayed,
at minimum, in both Spanish and English at the same location. Asbestos caution
tape must not be substituted for a warning sign.
(11) Cleaning. Cleaning procedures must
include wet methods and HEPA vacuuming. A HEPA vacuum designed and equipped
with a HEPA filter must remain on-site during any asbestos abatement activity.
HEPA vacuums must be operated and maintained in accordance with the
manufacturer's instructions. A HEPA vacuum that meets the standard of ASTM
F1977-04 and is operated according to manufacturer's specifications will meet
the requirement of this section.
(12) Containment-area ventilation. HEPA
filtration units must be operated continuously from the time containment is
established through the time acceptable final air clearance is achieved,
maintaining negative pressure with a manometric reading of at least -0.02
inches inside the containment. There must be HEPA units in sufficient number to
provide negative pressure within the containment relative to the
non-containment area, as indicated by a water column differential that produces
a manometric instrument reading of at least -0.02 inches. HEPA units must, in
combination, provide a minimum of four containment air changes per hour. Units
must be operated with unrestricted exhaust, unless it is not feasible, and must
be in a location that draws air across the containment area so that asbestos
fibers are captured and minimizes areas without air movement. These units must
exhaust filtered air to the outside of the building wherever
feasible.
(c) Removal of
ACBM.
(1) All ACBM must be adequately wetted
using amended water before removal or other handling. A consultant may specify
the use of water without surfactant if it is as protective of public health.
The ACBM must then be placed in bags (or other suitable containers) that must
be marked in accordance with applicable NESHAP and OSHA regulations and
paragraph (4) of this subsection. All ACWM must be double-bagged into 6-mil
thick plastic bags or placed into a leak-tight drum.
(2) A bag must not be filled to a level that
tears or breaks the bag. Excess air in a bag must be removed before entering
the bag-out area. The top of the bag must be twisted closed, folded over, and
sealed with duct tape. The bag must be rinsed off or HEPA-vacuumed in the
bag-out area to remove asbestos contamination and placed inside another bag or
leak-tight drum. If an outer bag is used, excess air must be removed, and the
bag must be closed and sealed in the same manner as the inner bag.
(3) If a bag leaks, the bag must be placed
into a third bag and sealed as required in paragraphs (1) and (2) of this
subsection. If a drum leaks, the drum must be wrapped in a minimum of one layer
of 6-mil thick plastic sheeting and sealed.
(4) The exterior bag, wrapping, or leak-tight
drum must have warning and generator labels applied as specified in
40 CFR §
61.150(a)(1)(iv) and (v)
(relating to Standard for waste disposal for manufacturing, fabricating,
demolition, renovation, and spraying operations). Generator labels must be
printed in letters of sufficient size and contrast to be readily visible and
legible. All required labeling of ACWM containers must be done before removal
from the regulated area. Any container or wrapped component labeled as asbestos
must be containerized and labeled as ACWM before removal from the regulated
area.
(5) A component covered with,
coated with, or containing ACM that is going to be removed from the building
may either, after being adequately wetted, be stripped in place, cleaned, and
pass a visual inspection by the asbestos consultant, or the ACBM may be
adequately wetted and the entire component wrapped in two layers of 6-mil thick
plastic sheeting or equivalent, labeled, and sealed, provided that:
(A) any component, such as a section of metal
lath, that cannot be safely lowered to the floor must, after being adequately
wetted, be stripped in place;
(B)
any component that cannot be lowered or handled without presenting an excessive
fiber release or safety hazard must be stripped in place; and
(C) a sharp edge of any component must be
protected to preclude tearing the plastic wrapping and causing
injury.
(6) ACBM must be
removed as a wrapped unit or in small sections and containerized while wet.
Material must not be allowed to accumulate on the floor or become dry. Any
structural component or piping must be adequately wetted before wrapping it in
plastic sheeting for disposal.
(7)
At the conclusion of the removal, the licensed asbestos abatement contractor
must perform a visual inspection to confirm that all ACBM required to be
removed was removed and containerized, in accordance with this section, and
that the containment is free of all residual dust and debris.
(8) Temporary storage of ACWM must be
provided (for example, a dedicated roll-off box, dumpster, or storage room
lined with 6-mil thick plastic sheeting). All temporary storage must be sealed
to prevent unauthorized access and safeguarded to keep the storage container
sealed and leak tight. Final disposal of ACWM must be within 30 days after
project completion, or when the receiving container is full, whichever is
sooner.
(9) A vehicle used to
transport ACWM must be marked in accordance with
40 CFR §
61.149(d)(1)(i) - (iii),
(relating to Standard for waste disposal for asbestos mills) and
§61.150(c) during the loading and unloading of ACWM so that the signs are
visible.
(10) ACWM transported by a
licensed asbestos transporter off the asbestos abatement project site must be
disposed of in accordance with
40 CFR §
61.150(d).
(d) Requirements for the encapsulation of
ACBM.
(1) Any product used for encapsulation
must be clearly labeled or described in writing by the manufacturer as being
designed for the particular asbestos-related activity. A product that is not
clearly labeled or described as an asbestos encapsulant must be tested before
use, and found to conform to ASTM E1494-12, if the intended use is to
encapsulate ACBM.
(2) Any
encapsulation must be performed within a containment.
(3) Loose and hanging ACBM must be removed
before encapsulation. Filler material applied to any gap in existing material
must contain no asbestos, adhere well to the substrate, and provide an adequate
base for the encapsulating agent.
(4) Encapsulant must be applied using only
airless spray equipment with the nozzle pressure and tip size set according to
the manufacturer's recommendations.
(5) Any encapsulated material must be
specifically designated by sign, label, color coding, or other mechanism to
warn any individual who may in the future be required to disturb the
material.
(e)
Requirements for the enclosure of ACBM.
(1)
Acceptable enclosure must be airtight and of permanent construction so that the
material enclosed is inaccessible.
(2) Any area of ACBM that can be reasonably
anticipated to be disturbed during the installation of a hanger, bracket, or
any other portion of the enclosure must be wetted within containment before
such activity.
(3) Before building
the enclosure, loose and hanging ACBM that may be disturbed must be
removed.
(4) Any enclosure for ACBM
must be specifically designated by sign, label, color coding, or other
mechanism to warn any individual who may in the future be required to disturb
the material.
(f) Safety
requirements and prohibitions. The following safety requirements must be in
effect for an abatement project:
(1) Fire
safety. A minimum of one fire extinguisher with a minimum National Fire
Protection Association rating of 10BC (dry chemical) must be placed within each
abatement project containment for every 3,000 square feet, or fraction thereof,
of containment. One fire extinguisher must be placed at each entrance inside of
the containment. Each fire extinguisher must be maintained in a fully charged
and operable condition with a current annual inspection tag securely attached
reflecting that maintenance was performed by an appropriately licensed
individual. Where more than one fire extinguisher is required, they must be
distributed proportionately throughout the containment and their locations
clearly marked.
(2) Electrical
safety. An active electrical service line within a regulated area and
containment must be connected through ground-fault circuit interrupter devices
(GFCI). An electrical appliance must not be plugged into an outlet unless
equipped with a GFCI.
(3)
Prohibitions. Use of any solvent with a flash point of 140 degrees Fahrenheit
or below is prohibited.