MSHA - Code of Federal Regulations - 30 CFR 7.30
Skip to content
MSHA - Title 30 CFR
30 CFR § 7.30
Post-approval product audit.

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.