053-4 Wyo. Code R. § 75.161
Each mine operator shall submit to the District Manager a program or plan setting forth what, when, how, and where the operator will train and retrain persons whose work assignments require that they be qualified or certified. The program shall provide--
(a) For certified persons, annual training courses in methane measurement and oxygen deficiency testing, roof and rib control, ventilation, first aid, principles of mine rescue, and the provisions of this part 75;
(b) For qualified persons, annual courses in performance of the tasks which they perform as qualified persons; and
(c) For certified persons, annual training in the use of self-contained self-rescue devices used at the mine. This training shall include complete donning procedures in which each person assumes proper position, opens the device, activates the device, inserts the mouthpiece or simulates this task while explaining proper insertion of the mouthpiece, and puts on the nose clip.
053-4 Wyo. Code R. § 75.161