30 CFR § 45.3
Identification of independent contractors.
(a) Any independent contractor may obtain a permanent MSHA
identification number. To obtain an identification number, an independent
contractor shall submit to the District Manager in writing the following
information:
(1) The trade name and business address of the independent
contractor;
(2) An address of record for service of documents;
(3) A telephone number at which the independent contractor
can be contacted during regular business hours; and
(4) The estimated annual hours worked on mine property by
the independent contractor in the previous calendar year, or in the instance
of a business operating less than one full calendar year, prorated to an
annual basis.
(Pub. L. No. 96-511, 94 Stat. 2812 (44 U.S.C. 3501 et seq.))
[45 FR 44496, July 1, 1980, as amended at 47 FR 14696, Apr. 6, 1982; 60 FR 33719, June 29, 1995]
For more information : See MSHA's Program Policy Manual