46 C.F.R. § 58.01-20 Machinery guards.
Title 46 - Shipping
Gears, couplings, flywheels and all machinery capable of injuring personnel shall be provided with adequate covers or guards.
Title 46: Shipping
PART 58—MAIN AND AUXILIARY MACHINERY AND RELATED SYSTEMS
Subpart 58.01—General Requirements
§ 58.01-20 Machinery guards.