Beginning January 1, 1972, each operator of a surface coal mine shall conduct refresher first aid training programs each calendar year for all selected supervisory employees and make available refresher first aid training courses to all miners employed in the mine.
053-5 Wyo. Code R. § 77.1705
36 FR 9364, 5/22/1971, as amended at 36 FR 13143, 7/15/1971