29 CFR 1926.753 - Hoisting and rigging.
(a) All the provisions of subpart CC apply to hoisting and rigging with the exception of § 1926.1431(a).
(b) In addition, paragraphs (c) through (e) of this section apply regarding the hazards associated with hoisting and rigging.
(1) Pre-shift visual inspection of cranes.
(i) Cranes being used in steel erection activities shall be visually inspected prior to each shift by a competent person; the inspection shall include observation for deficiencies during operation. At a minimum this inspection shall include the following:
(A) All control mechanisms for maladjustments;
(B) Control and drive mechanism for excessive wear of components and contamination by lubricants, water or other foreign matter;
(C) Safety devices, including but not limited to boom angle indicators, boom stops, boom kick out devices, anti-two block devices, and load moment indicators where required;
(D) Air, hydraulic, and other pressurized lines for deterioration or leakage, particularly those which flex in normal operation;
(E) Hooks and latches for deformation, chemical damage, cracks, or wear;
(F) Wire rope reeving for compliance with hoisting equipment manufacturer's specifications;
(G) Electrical apparatus for malfunctioning, signs of excessive deterioration, dirt, or moisture accumulation;
(H) Hydraulic system for proper fluid level;
(I) Tires for proper inflation and condition;
(K) The hoisting equipment for level position; and
(L) The hoisting equipment for level position after each move and setup.
(iv) The operator shall be responsible for those operations under the operator's direct control. Whenever there is any doubt as to safety, the operator shall have the authority to stop and refuse to handle loads until safety has been assured.
(4) Cranes or derricks may be used to hoist employees on a personnel platform when work under this subpart is being conducted, provided that all provisions of § 1926.1431 (except for § 1926.1431(a)) are met.
(5) Safety latches on hooks shall not be deactivated or made inoperable except:
(i) When a qualified rigger has determined that the hoisting and placing of purlins and single joists can be performed more safely by doing so; or
(ii) When equivalent protection is provided in a site-specific erection plan.
(d)Working under loads.
(i) Employees engaged in the initial connection of the steel; or
(ii) Employees necessary for the hooking or unhooking of the load.
(2) When working under suspended loads, the following criteria shall be met:
(i) Materials being hoisted shall be rigged to prevent unintentional displacement;
(e)Multiple lift rigging procedure.
(1) A multiple lift shall only be performed if the following criteria are met:
(i) A multiple lift rigging assembly is used;
(ii) A maximum of five members are hoisted per lift;
(iii) Only beams and similar structural members are lifted; and
(2) Components of the multiple lift rigging assembly shall be specifically designed and assembled with a maximum capacity for total assembly and for each individual attachment point. This capacity, certified by the manufacturer or a qualified rigger, shall be based on the manufacturer's specifications with a 5 to 1 safety factor for all components.
(3) The total load shall not exceed:
(ii) The rigging capacity specified in the rigging rating chart.
(i) Attached at their center of gravity and maintained reasonably level;
(ii) Rigged from top down; and
(iii) Rigged at least 7 feet (2.1 m) apart.