Pennsylvania Statutes Title 52 P.S. Mines and Mining § 690-204. Certification of miners

No individual shall be employed or engaged as a miner in any bituminous coal mine in this Commonwealth without first having obtained a certificate of competency and qualification, except that any miner holding such certificate may have a maximum of two individuals working under his direction as noncertified miners for the purpose of learning the business of mining, and such noncertified miner or noncertified miners shall be permitted to work under the direction of such miner without a certificate. The miner shall provide adequate oversight to keep the uncertified individual out of harm's way.