Current through Register 2024 Notice Reg. No. 52, December 27, 2024
(a) Boom hoist and load hoist free fall
prohibitions.
(1) The use of equipment in
which the boom, or hoist line in use, is configured to free fall (live
boom/live hoist line) is prohibited in each of the following circumstances:
(A) An employee is in the fall zone of the
boom or load.
(B) An employee is
being hoisted.
(C) The load or boom
is directly over a power line, or over any part of the area extending the Table
A of Section
5003.1 clearance distance to each
side of the power line; or any part of the area extending the Table A clearance
distance to each side of the power line is within the radius of vertical travel
of the boom or the load.
NOTE TO (a)(1)(C): Operations in proximity to overhead
lines are also subject to Section
2946.
(D) The load is over a shaft, except where
there are no employees in the shaft.
(E) The load is over a cofferdam, except
where there are no employees in the fall zone of the boom or the
load.
(F) Lifting operations are
taking place in a refinery or tank farm.
(2) The use of equipment in which the boom is
configured to free fall (live boom) is permitted only where none of the
circumstances listed in subsection (a)(1) are present and:
(A) The equipment was manufactured prior to
October 31, 1984; or
(B) The
equipment is a floating crane/derrick or a land crane/derrick on a
vessel/flotation device.
(b) Preventing boom free fall (Controlled
Load Lowering). Where the use of equipment with a boom that is configured to
free fall (live boom) is prohibited, the boom shall have a secondary mechanism
or device designed to prevent the boom free fall in the event the primary
system used to hold or regulate the boom hoist fails, as follows:
(1) Friction drums shall have:
(A) A friction clutch and a braking device to
allow for controlled boom lowering.
(B) A secondary braking or locking device,
which is manually or automatically engaged, to back-up the primary brake while
the boom is held (such as a secondary friction brake or a ratchet and pawl
device).
(2) Hydraulic
drums shall have an integrally mounted holding device or internal static brake
to prevent hoist movement in the event of hydraulic failure.
(3) Neither clutches nor hydraulic motors
shall be considered as a brake or locking device for purposes of this
section.
(4) Hydraulic boom hoist
cylinders shall have an integrally mounted holding device.
(c) Load line free fall prohibitions. In each
of the following circumstances, controlled load lowering is required and free
fall of the load line hoist is prohibited:
(1)
An employee is in the fall zone of the load.
(2) An employee is being hoisted.
(3) The load or boom is directly over a power
line, or over any part of the area extending the Table A of Section
5003.1 clearance distance to each
side of the power line; or any part of the area extending the Table A clearance
distance to each side of the power line is within the radius of vertical travel
of the boom or the load.
NOTE TO (c)(3): Operations in proximity to overhead
lines are also subject to Section
2946.
(4) The load is over a shaft.
(5) The load is over a cofferdam, except
where there are no employees in the fall zone of the load.
(6) Lifting operations are taking place in a
refinery or tank farm.
1. New
section filed 7-26-2022; operative 7-26-2022 pursuant to Government Code
section
11343.4(b)(3)
(Register 2022, No. 30). Filing deadline specified in Government Code section
11349.3(a)
extended 60 calendar days pursuant to Executive Order N-40-20 and an additional
60 calendar days pursuant to Executive Order
N-71-20.
Note: Authority cited: Section
142.3, Labor
Code. Reference: Section
142.3, Labor
Code.
