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. Part 46 requires at least 24 hours of new miner training; Part 48 requires 24 hours for surface miners and 40 hours for underground miners. Both require at least 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.

Under Part 46, training may be given in the classroom, at the mine, through interactive computer-based instruction, or by other methods, as long as it follows your written training plan and is presented by a competent person (30 CFR 46.4). New miner training must include a visit and tour of the mine (30 CFR 46.5).

Under Part 46, new miner training is at least 24 hours. At least 4 hours must come before the miner starts work, and until the full 24 hours are done the new miner must work where an experienced miner can observe them (30 CFR 46.5). Under Part 48, surface new miners need 24 hours and underground new miners 40 hours (30 CFR 48.25, 48.5). 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 across the Eastern United States, with compliance support available nationwide. Call 443-477-4244 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.