30 C.F.R. § 45.4 – Independent contractor register.

(a) Each independent contractor shall provide the production-operator in writing the following information:
1. (1) The independent contractor's trade name, business address and business telephone number;
2. (2) A description of the nature of the work to be performed by the independent contractor and where at the mine the work is to be performed;
3. (3) The independent contractor's MSHA identification number, if any; and
4. (4) The independent contractor's address of record for service of citations, or other documents involving the independent contractor.
(b) Each production-operator shall maintain in writing at the mine the information required by paragraph (a) of this section for each independent contractor at the mine. The production-operator shall make this information available to any authorized representative of the Secretary upon request.