30 CFR 56.4603 - Closure of valves.

Regulations last checked for updates: Feb 06, 2026

Title 30 - Mineral Resources last revised: Jan 27, 2026

View all text of Subpart C [§ 56.4000 - § 56.4604]

§ 56.4603 - Closure of valves.

To prevent accidental release of gases from hoses and torches attached to oxygen and acetylene cylinders or to manifold systems, cylinder or manifold system valves shall be closed when—

(a) The cylinders are moved;

(b) The torch and hoses are left unattended; or

authority: 30 U.S.C. 811.

source: 50 FR 4054, Jan. 29, 1985, unless otherwise noted.

cite as: 30 CFR 56.4603