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Occupational Safety and Health Administration (OSHA) is proposing corrections and amendments to the final standard for cranes and derricks published in August 2010. The standard has a large number of provisions designed to improve crane safety and reduce worker injury and fatality. The proposed amendments: correct references to power line voltage for direct current (DC) voltages as well as alternating current (AC) voltages; broaden the exclusion for forklifts carrying loads under the forks from "winch or hook" to a "winch and boom"; clarify an exclusion for work activities by articulating cranes; provide four definitions inadvertently omitted in the final standard; replace "minimum approach distance" with "minimum clearance distance" throughout to remove ambiguity; clarify the use of demarcated boundaries for work near power lines; correct an error permitting body belts to be used as a personal fall arrest system rather than a personal fall restraint system; replace the verb "must" with "may" used in error in several provisions; correct an error in a caption on standard hand signals; and resolve an issue of "NRTL-approved" safety equipment (e.g., proximity alarms and insulating devices) that is required by the final standard, but is not yet available.