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Title 46

Displaying title 46, up to date as of 7/20/2026. Title 46 was last amended 6/30/2026.
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Title 46ShippingPart / Section
Chapter ICoast Guard, Department of Homeland Security1 – 199
Subchapter VMarine Occupational Safety and Health Standards197 – 198
Part 197General Provisions197.200 – 197.580
Subpart BCommercial Diving Operations197.200 – 197.488
General197.200 – 197.210
§ 197.200Purpose of subpart.
§ 197.202Applicability.
§ 197.203Right of appeal.
§ 197.204Definitions.
§ 197.205Availability of standards.
§ 197.206Substitutes for required equipment, materials, apparatus, arrangements, procedures, or tests.
§ 197.208Designation of person-in-charge.
§ 197.210Designation of diving supervisor.
Equipment197.300 – 197.346
§ 197.300Applicability.
§ 197.310Air compressor system.
§ 197.312Breathing supply hoses.
§ 197.314First aid and treatment equipment.
§ 197.318Gages and timekeeping devices.
§ 197.320Diving ladder and stage.
§ 197.322Surface-supplied helmets and masks.
§ 197.324Diver's safety harness.
§ 197.326Oxygen safety.
§ 197.328PVHO—General.
§ 197.330PVHO—Closed bells.
§ 197.332PVHO—Decompression chambers.
§ 197.334Open diving bells.
§ 197.336Pressure piping.
§ 197.338Compressed gas cylinders.
§ 197.340Breathing gas supply.
§ 197.342Buoyancy-changing devices.
§ 197.344Inflatable floatation devices.
§ 197.346Diver's equipment.
Operations197.400 – 197.420
§ 197.400Applicability.
§ 197.402Responsibilities of the person-in-charge.
§ 197.404Responsibilities of the diving supervisor.
§ 197.410Dive procedures.
§ 197.420Operations manual.
Specific Diving Mode Procedures197.430 – 197.436
§ 197.430SCUBA diving.
§ 197.432Surface-supplied air diving.
§ 197.434Surface-supplied mixed-gas diving.
§ 197.436Liveboating.
Periodic Tests and Inspections of Diving Equipment197.450 – 197.462
§ 197.450Breathing gas tests.
§ 197.452Oxygen cleaning.
§ 197.454First aid and treatment equipment.
§ 197.456Breathing supply hoses.
§ 197.458Gages and timekeeping devices.
§ 197.460Diving equipment.
§ 197.462Pressure vessels and pressure piping.
Records197.480 – 197.488
§ 197.480Logbooks.
§ 197.482Logbook entries.
§ 197.484Notice of casualty.
§ 197.486Written report of casualty.
§ 197.488Retention of records after casualty.