30 C.F.R. § 7.410 Post-approval product audit.
Title 30 - Mineral Resources
Upon request by MSHA, but no more than once a year except for cause, the approval holder shall supply to MSHA for audit at no cost— (a) 12 feet of an approved electric cable or approved signaling cable; or (b) 3 splice kits of one approved splice kit design and 12 feet of MSHA-assigned cable that the splice kit is designed to repair.
Title 30: Mineral Resources
PART 7—TESTING BY APPLICANT OR THIRD PARTY
Subpart K—Electric Cables, Signaling Cables, and Cable Splice Kits
§ 7.410 Post-approval product audit.

