Subpart D - MACHINES ASSEMBLED WITH CERTIFIED OR EXPLOSION-PROOF COMPONENTS, FIELD MODIFICATIONS OF APPROVED MACHINES, AND PERMITS TO USE EXPERIMENTAL EQUIPMENT
- Section 18.80 - Approval of machines assembled with certified or explosion-proof components
- Section 18.81 - Field modification of approved (permissible) equipment; application for approval of modification; approval of plans for modification before modification
- Section 18.82 - Permit to use experimental electric face equipment in a gassy mine or tunnel
- Appendix I to Subpart D of Part 18 - Appendix I to Subpart D of Part 18
- Appendix II to Subpart D of Part 18 - Appendix II to Subpart D of Part 18