Principal
Principal means any person who has an ownership interest in an operator that is not a corporation, and shall include, but is not limited to, partners, sole proprietors, and any other person who exercises control over the operation of a coal mine.
Source
20 CFR § 726.301
Scoping language
In addition to the definitions provided in part 725 of this subchapter and 726.8, the following definitions apply to this subpart: