Clarification of 29 CFR 1926.350(b)(4) to Permit Cylinders Containing Oxygen…

Filnamn: Clarification of 29 CFR 1926.350(b)(4) to Permit Cylinders Containing Oxygen, Acetylene or Other Fuel Gas to be Taken into Tunnels

OSHA interpretation letter clarifying 29 CFR 1926.350(b)(4), stating that gas cylinders must be left outside confined spaces during welding or cutting, that liquefied petroleum gases may not be used underground in tunnel construction, and that oxygen or fuel gas cylinders other than LP may be taken into a tunnel considered an enclosed space.