Part 46 Surface – 24 hours:

Training and retraining miners and other persons at shell dredging, sand, gravel, surface stone, surface clay, colloidal phosphate and surface limestone mines. Course covers the 7 items listed above, but it could be more depending on the site or situation. No less than 24 hours of training for new miners; 8 hour refresher every year. Training completed under Part 48A and Part 48B may be used to satisfy this section.

Part 48B Surface – 24 hours:
Training and retraining miners working at surface mines/areas of underground mines, the surface that is the property of an underground mine. This part does not apply to the 7 items listed under Part 46, but the training under this section may count for the training for Part 46. No less than 24 hours of training for new miners; 8 hour refresher every year.

Part 48A Underground – 40 hours:
Training and retraining miners working in underground mines and surface mines/areas of underground mines. No less than 40 hours of training for new miners; 8 hour refresher every year. Training under this part can count for both Part 48B and Part 46 and it allows a person to be qualified to work at any site.

Current Schedule:

MSHA Part 48A Underground New Miner Training