Section 515. Main Doors Placed to Prevent Temporary Stoppage of Air Current.--All main doors shall be so placed that when one door is open, another, which has the same effect upon the same current, shall be and remain closed and thus prevent any temporary stoppage of the air current.
Main Doors Placed to Prevent Temporary Stoppage of Air Current
Act 346 of 1965, § 515, under PENNSYLVANIA ANTHRACITE COAL MINE ACT.
Act 346 of 1965, § 515