{"data":{"id":"us/46-cfr-197.326","jurisdiction":"us","citation":"46 CFR 197.326","heading":"Oxygen safety.","body":"(a) Equipment used with oxygen or oxygen mixtures greater than 40 percent by volume must be designed for such use.\n(b) Oxygen systems with pressures greater than 125 psig must have slow-opening shut-off valves except pressure boundary shut-off valves may be ball valves.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER V—MARINE OCCUPATIONAL SAFETY AND HEALTH STANDARDS","PART 197—GENERAL PROVISIONS","Subpart B—Commercial Diving Operations"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-46.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:22Z","sha256":"ea638bad09fa23d380ee9696133c1ee14932a858d6f03551eba16d8044f940f0","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-197.324","next":"us/46-cfr-197.328"},"notice":"GroundRules: Original legal text. Not legal advice."}