30 CFR § 40.1
Definitions.
As used in this Part 40:
(a) Act means the Federal Mine Safety and Health Act of
1977.
(b) Representative of miners means:
(1) Any person or organization which represents two or
more miners at a coal or other mine for the purposes of the Act, and
(2) Representatives authorized by the miners, miners
or their representative, authorized miner representative, and other
similar terms as they appear in the Act.