Kentucky Revised Statutes Title XXVIII. Mines and Minerals § 352.135. Lifeline cords and directional devices

In all designated escapeways, each operator shall provide lifeline cords, with attached reflective material at not to exceed twenty-five (25) foot intervals and devices indicating the direction to the surface at not to exceed one hundred (100) foot intervals, from outby the loading point;  provided, that in case of a shaft mine, such lifeline cords shall extend from outby to the loading point to the bottom of the designated escape shaft.  Such lifeline cord shall be of flame-resistant material sufficient to allow miners to see and to use effectively to guide themselves out of the mine in the event of an emergency.  All lifeline cords shall be made of flame resistant material within one hundred eighty (180) days of June 26, 2007.