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Federal regulations · Through 2026-08-25 · Newer source version available

30 CFR 75.1317: Primer cartridges.

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Where this section sits in the code
  1. Title 30—Mineral Resources
  2. CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
  3. SUBCHAPTER O—COAL MINE SAFETY AND HEALTH
  4. PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES
  5. Subpart N—Explosives and Blasting

(a) Primer cartridges shall be primed and loaded only by a qualified person or a person working in the presence of and under the direction of a qualified person.

(b) Primer cartridges shall not be primed until immediately before loading boreholes.

(c) Only a nonsparking punch shall be used when priming explosive cartridges.

(d) Detonators shall be completely within and parallel to the length of the cartridge and shall be secured by half-hitching the leg wires around the cartridge or secured by an equally effective method.

Collected 2026-08-27T02:25:24Z. Source file · JSON

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