Supplements the subpart for floating cranes and derricks and for land cranes and derricks mounted on a barge, pontoon, vessel or other flotation, except jacked barges fully supported on deployed jacks. Work area control under 1926.1424 applies except (a)(2)(ii); the employer either erects barriers marking hazard areas or marks them with warning signs and high-visibility equipment markings and trains employees on their meaning. The rules of 1926.1425 on keeping clear of loads are not applied here. Extra safety devices: a list and trim device in the cab or at the operator's station, a positive house lock, and a wind speed and direction indicator where a competent person decides wind must be considered. Anti two-block devices are needed only for personnel hoisting or lifting over an occupied cofferdam or shaft, and the load weighing aid does not apply to dragline, clamshell, magnet, drop ball, container, concrete bucket and pile driving work. Cabless equipment must have load charts posted at the operator's station (or on the equipment if the station moves) and other procedures available on board. Inspections add the flotation device: each shift, the crane-to-vessel securing means; monthly, the securing means, water ingress, deckload securing, watertightness of lockers, storage, fuel compartments and hatches, and firefighting and lifesaving equipment, both by a competent person with a qualified person deciding if a deficiency is a hazard (removing the vessel from service until corrected); annually, a qualified person with vessel expertise checks the shift and monthly items, cleats, chocks, bitts, capstans, fenders, stanchions and ladders, external leaks and damage, four-corner draft readings and firefighting equipment, plus ring buoys, life preservers, work vests, lifelines and rescue skiffs; every four years a licensed surveyor, marine architect, marine engineer or other qualified person with vessel expertise surveys the internal hull. Monthly and annual inspections are documented per 1926.1412(e)(3) and (f)(7), and the four-year survey per (f)(7) but kept at least 4 years. With divers, a crane used to put a diver in or out of the water serves no other purpose until all divers are aboard, the operator stays at the controls, the operator and tender keep line of sight or electronic signals, and the crane securing allows no shifting. The flotation device must withstand environmental, operational and in-transit loads within the maker's (or a qualified person's) limits. Floating cranes: water load charts obeyed, charts accounting for at least 40 mph wind, Table M1 list and trim limits (5 degrees for 25 tons or less, 7 degrees over 25 tons, 10 degrees for derricks), stability per Tables M2 (60 mph wind with 2 feet freeboard at rated capacity and high boom no load, 1 foot at rated capacity plus 25%) and M3 (backward stability in 90 mph wind with the boom high, unloaded and at full back list), RPE-signed documents for employer-made equipment, and a structurally sufficient, subdivided hull with accessible voids. Land cranes on flotation: capacity reduced by the equipment manufacturer or by a qualified person with crane and vessel stability expertise for list, trim, waves and wind at specific locations; list and trim no more than 5 degrees or the lower maker or qualified person figure, with decks above water and the bottom submerged; the crane secured by physical attachment, corralling, rails with clamps and stops, or a centerline cable system, designed by a marine engineer, RPE or qualified person (mobile auxiliary cranes may instead follow an engineer-signed written plan with marked deck areas and condition limits); and a sufficient, subdivided hull with accessible voids.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.