30 U.S. Code § 815 - Procedure for enforcement
If, after an inspection or investigation, the Secretary issues a citation or order under section 814 of this title, he shall, within a reasonable time after the termination of such inspection or investigation, notify the operator by certified mail of the civil penalty proposed to be assessed under section 820(a) of this title for the violation cited and that the operator has 30 days within which to notify the Secretary that he wishes to contest the citation or proposed assessment of penalty. A copy of such notification shall be sent by mail to the representative of miners in such mine. If, within 30 days from the receipt of the notification issued by the Secretary, the operator fails to notify the Secretary that he intends to contest the citation or the proposed assessment of penalty, and no notice is filed by any miner or representative of miners under subsection (d) of this section within such time, the citation and the proposed assessment of penalty shall be deemed a final order of the Commission and not subject to review by any court or agency. Refusal by the operator or his agent to accept certified mail containing a citation and proposed assessment of penalty under this subsection shall constitute receipt thereof within the meaning of this subsection.
If, within 30 days of receipt thereof, an operator of a coal or other mine notifies the Secretary that he intends to contest the issuance or modification of an order issued under section 814 of this title, or citation or a notification of proposed assessment of a penalty issued under subsection (a) or (b) of this section, or the reasonableness of the length of abatement time fixed in a citation or modification thereof issued under section 814 of this title, or any miner or representative of miners notifies the Secretary of an intention to contest the issuance, modification, or termination of any order issued under section 814 of this title, or the reasonableness of the length of time set for abatement by a citation or modification thereof issued under section 814 of this title, the Secretary shall immediately advise the Commission of such notification, and the Commission shall afford an opportunity for a hearing (in accordance with section 554 of title 5, but without regard to subsection (a)(3) of such section), and thereafter shall issue an order, based on findings of fact, affirming, modifying, or vacating the Secretary’s citation, order, or proposed penalty, or directing other appropriate relief. Such order shall become final 30 days after its issuance. The rules of procedure prescribed by the Commission shall provide affected miners or representatives of affected miners an opportunity to participate as parties to hearings under this section. The Commission shall take whatever action is necessary to expedite proceedings for hearing appeals of orders issued under section 814 of this title.
 So in original. Probably should be “this”.
This chapter, referred to in subsec. (c)(1), was in the original “this Act”, meaning Pub. L. 91–173, Dec. 30, 1969, 83 Stat. 742, known as the Federal Mine Safety and Health Act of 1977, which is classified principally to this chapter. For complete classification of this Act to the Code, see Short Title note set out under section 801 of this title and Tables.
1977—Subsec. (a). Pub. L. 95–164 substituted provisions under which the Secretary must notify the operator of the civil penalty he proposes to assess following the issuance of a citation or order and the operator must give notice that he will contest the citation or proposed assessment for provisions under which an operator was required to apply for review of an order issued under section 814 of this title and under which an investigation was made, hearings held, and information presented.
Subsec. (b). Pub. L. 95–164 substituted provisions relating to the steps to be taken following the failure of the operator to correct violations, including provisions relating to temporary relief formerly contained in subsec. (d), for provisions requiring the Secretary to make findings of fact and to issue a written decision upon receiving the report of an investigation.
Subsec. (c). Pub. L. 95–164 added subsec. (c). Former subsec. (c), directing the Secretary to take action under this section as promptly as possible, was incorporated into a part of par. (3).
Subsec. (d). Pub. L. 95–164 added subsec. (d). Former subsec. (d) redesignated (b)(2).