What 29 CFR 1926.701 requires (plain English)
29 CFR 1926.701 sets the general requirements for cast-in-place concrete construction. It addresses the hazards that arise while concrete is being placed and before it has cured: premature loading of an immature structure, impalement on protruding reinforcing steel, and contact with concrete-placing equipment.
Its foundational rule is that no construction loads may be placed on a concrete structure or portion of a structure until the employer determines, based on information from a person qualified in structural design, that it can support the loads. Beyond that, all protruding reinforcing steel onto which employees could fall must be guarded to eliminate the impalement hazard, workers must not be permitted under concrete buckets while they are being elevated or moved, and equipment such as bull floats and powered trowels must have specified safeguards.
1926.701 works with the formwork and shoring standard (1926.703), the concrete equipment standard (1926.702), and the fall-protection and silica standards, since concrete cutting and finishing also generate respirable silica. It governs the window when a concrete structure is at its most vulnerable: freshly placed and not yet self-supporting.