OSHA defines a “critical lift” in 1926.751 (Subpart R - Steel Erection) as a lift exceeding 75% of the crane’s rated capacity, and this threshold is widely adopted as an industry standard. Under Subpart CC, OSHA 1926.1432 specifically mandates a formalized, written plan for multi-crane lifts. A critical lift typically exceeds 75% of the crane’s rated capacity, involves multiple cranes, or lifts over sensitive areas.
The standard mandates that a qualified person develops a detailed lift plan, including rigorous load chart verification and center of gravity calculations. Before equipment moves, the designated Lift Director (per 1926.1432(e)) must lead a comprehensive pre-lift meeting with the crew to review safety protocols.
Furthermore, OSHA demands thorough equipment inspection prior to the operation to ensure all rigging hardware and cranes meet ASME B30 standards. Finally, strict exclusion zones must be established to keep unauthorized personnel out of the fall radius. These stringent requirements ensure safety during high-risk heavy lifting operations.
For the complete step-by-step process, see our critical lift planning guide. Need a qualified team for your next complex project? Get a quote for critical lift planning.