30 CFR 56.14114 - Air valves for pneumatic equipment.
A manual master quick-close type air valve shall be installed on all pneumatic-powered equipment if there is a hazard of uncontrolled movement when the air supply is activated. The valve shall be closed except when the equipment is being operated.
Title 30 published on 2014-07-01.
No entries appear in the Federal Register after this date, for 30 CFR Part 56.