StacksVerified U.S. regulatory reference

30 CFR §7.30

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Upon request by MSHA but no more than once a year except for cause, the approval-holder shall supply to MSHA at no cost up to fifty feet of each approved design of brattice cloth and ventilation tubing for audit.