StacksVerified U.S. regulatory reference

30 CFR §75.1319

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)The total weight of explosives loaded in any borehole in bituminous and lignite mines shall not exceed 3 pounds except when blasting solid rock in its natural deposit.
  2. (b)The total weight of explosives loaded in a borehole less than 6 feet deep in bituminous and lignite mines shall be reduced by 1/2 pound for each foot of borehole less than 6 feet.