46 C.F.R. § 197.452 Oxygen cleaning.
Title 46 - Shipping
The diving supervisor shall ensure that equipment used with oxygen or oxygen mixtures greater than 40 percent by volume is cleaned of flammable materials— (a) Before being placed into service; and (b) After any repair, alteration, modification, or suspected contamination.
Title 46: Shipping
PART 197—GENERAL PROVISIONS
Subpart B—Commercial Diving Operations
periodic tests and inspections of diving equipment
§ 197.452 Oxygen cleaning.
