MSHA Training FAQ

Part 46 applies to surface nonmetal mines (sand, gravel, stone, clay, colloidal phosphate, surface limestone, etc.). Part 48 applies to coal mines, underground metal/nonmetal mines, and surface areas of underground mines. Both require 24 hours of new miner training and 8 hours of annual refresher training. If you're unsure which applies to your site, MSHA or a qualified instructor can help.

Under both Part 46 and Part 48, miners must complete at least 8 hours of annual refresher training within 12 months of their last refresher. Training must be completed before the 12-month anniversary. Schedule classes in advance; don't wait until the last month.

Yes. MSHA accepts virtual training when it meets the same standards as in-person instruction—including live interaction with an instructor. Pre-recorded only video courses typically do not meet MSHA requirements. Marwil Safety offers live instructor-led virtual classes.

New miner training is 24 hours total, typically spread over 3–4 days (6–8 hours per day). Miners cannot perform full duties until training is complete. Upon completion, you receive a certificate. Your employer must maintain records and provide site-specific task training.

Marwil Safety is based in Maryland and provides MSHA training and compliance services nationwide. We offer live virtual training so miners anywhere in the US can get certified from home or office. Call 301-709-8700 or contact us for details.

Missing the annual refresher deadline can result in miners being removed from production until training is completed, plus potential MSHA citations. Schedule refresher classes well in advance. Marwil Safety offers flexible Friday and Sunday virtual classes to minimize work disruption.