The operator of each coal mine shall maintain a list of all certified and qualified persons designated to perform duties under this Part 77.
053-5 Wyo. Code R. § 77.106
Pub. L. No. 96-511, 94 Stat. 2812 ( 44 U.S.C. 3501 et seq.)
36 FR 9364, 5/22/1971, as amended at 47 FR 14706, 4/6/1982
Approved by the Office of Management and Budget under control number 1219-0049