053-4 Wyo. Code R. § 75.1712-6
(a) Except as provided in S 75.1712-7, each operator of an underground coal mine shall, on and after December 30, 1970, provide and maintain one approved sanitary toilet, together with an adequate supply of toilet tissue, in a dry location under protected roof, within 500 feet of each working place in the mine where miners are regularly employed during the mining cycle. A single approved sanitary toilet may serve two or more working places in the same mine, if it is located within 500 feet of each such working place.
(b) Only sanitary toilets approved by the Health Division, Coal Mine Health and Safety, Mine Safety and Health Administration shall meet the requirements of this section.
(c) Applications for approval of sanitary toilets shall be submitted to: Health Division, Coal Mine Health and Safety, Mine Safety and Health Administration, Department of Labor, 4015 Wilson Boule- vard, Arlington, Va. 22203.
053-4 Wyo. Code R. § 75.1712-6