30 CFR § 48.21
The provisions of this subpart B set forth the mandatory requirements for
submitting and obtaining approval of programs for training and retraining
miners working at surface mines and surface areas of underground mines.
Requirements regarding compensation for training and retraining are also
included. The requirements for training and retraining miners working in
underground mines are set forth in subpart A of this part.
This part does not apply to training and retraining of miners at shell dredging, sand, gravel, surface stone, surface clay, colloidal phosphate, and surface limestone mines, which are covered under 30 CFR Part 46
For more information : See MSHA's Program Policy Manual