30 CFR 56.4500 : Mineral Resources (§ 1.1 To Parts 1291-1299) — (§ 1.1 To Parts 105-199) — Mine Safety And Health Administration, Department Of Labor (§ 1.1 To Parts 105-199) — Metal And Nonmetal Mine Safety And Health (§ 56.1 To § 58.620) — Safety And Health Standards - Surface Metal And Nonmetal Mines (§ 56.1 To § 56.20014) — Fire Prevention And Control (§ 56.4000 To Appendix I To Subpart C Of Part 56) — Installation/Construction/Maintenance (§ 56.4500 To § 56.4531) — Heat sources.