MSHA Regulations. Subchapter H - Education and Training. Part 47 - Hazard Communication Data is current as of October 1, 2018. Contents: Subpart A - Purpose, Scope, Applicability, and Initial Miner Training. §47. 1 - Purpose of a HazCom standard; Applicability. §47. 2 - Operators and chemicals covered; Initial miner training. Subpart B - Definitions. §47.