(a) If longwall or shortwall mining systems are used and the two designated escapeways required by 75.380 are located on the headgate side of the longwall or shortwall, a travelway shall be provided on the tailgate side of that longwall or shortwall. The travelway shall be located to follow the most direct and safe practical route to a designated escapeway.
(b) The route of travel shall be clearly marked.
(c) When a roof fall or other blockage occurs that prevents travel in the travelway-
(d) Work may resume on the longwall or shortwall face after the procedures set out in Secs. 75.215 and 75.222 are implemented.
053-4 Wyo. Code R. § 75.384