Code of Federal Regulations > Title 46 > Chapter I > Part 197 > Subpart B - Subpart B—Commercial Diving Operations

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 21, 2026

GENERAL

§ 197.200 - Purpose of subpart.

§ 197.202 - Applicability.

§ 197.203 - Right of appeal.

§ 197.204 - Definitions.

§ 197.205 - Availability of standards.

§ 197.206 - Substitutes for required equipment, materials, apparatus, arrangements, procedures, or tests.

§ 197.208 - Designation of person-in-charge.

§ 197.210 - Designation of diving supervisor.

EQUIPMENT

§ 197.300 - Applicability.

§ 197.310 - Air compressor system.

§ 197.312 - Breathing supply hoses.

§ 197.314 - First aid and treatment equipment.

§ 197.318 - Gages and timekeeping devices.

§ 197.320 - Diving ladder and stage.

§ 197.322 - Surface-supplied helmets and masks.

§ 197.324 - Diver's safety harness.

§ 197.326 - Oxygen safety.

§ 197.328 - PVHO—General.

§ 197.330 - PVHO—Closed bells.

§ 197.332 - PVHO—Decompression chambers.

§ 197.334 - Open diving bells.

§ 197.336 - Pressure piping.

§ 197.338 - Compressed gas cylinders.

§ 197.340 - Breathing gas supply.

§ 197.342 - Buoyancy-changing devices.

§ 197.344 - Inflatable floatation devices.

§ 197.346 - Diver's equipment.

OPERATIONS

§ 197.400 - Applicability.

§ 197.402 - Responsibilities of the person-in-charge.

§ 197.404 - Responsibilities of the diving supervisor.

§ 197.410 - Dive procedures.

§ 197.420 - Operations manual.

SPECIFIC DIVING MODE PROCEDURES

§ 197.430 - SCUBA diving.

§ 197.432 - Surface-supplied air diving.

§ 197.434 - Surface-supplied mixed-gas diving.

§ 197.436 - Liveboating.

PERIODIC TESTS AND INSPECTIONS OF DIVING EQUIPMENT

§ 197.450 - Breathing gas tests.

§ 197.452 - Oxygen cleaning.

§ 197.454 - First aid and treatment equipment.

§ 197.456 - Breathing supply hoses.

§ 197.458 - Gages and timekeeping devices.

§ 197.460 - Diving equipment.

§ 197.462 - Pressure vessels and pressure piping.

RECORDS

§ 197.480 - Logbooks.

§ 197.482 - Logbook entries.

§ 197.484 - Notice of casualty.

§ 197.486 - Written report of casualty.

§ 197.488 - Retention of records after casualty.