; and (2) in subsection (b) by striking not more than $10,000 or sentenced to prison for a term not to exceed three years, or both and inserting under title 18, United States Code, or imprisoned for not more than six years, or both . (e) Federal Mine Safety and Health Act Section 110(d) of the Federal Mine Safety and Health Act of 1977 ( 30 U.S.C. 820(d) ) is amended to read as follows: (d) Criminal penalties (1) In general Whoever, being an operator, knowingly— (A) violates a mandatory health or safety standard, or (B) violates or fails or refuses to comply with any order issued under section 104 or section 107, or any order incorporated in a final decision issued under this Act (except an order incorporated in a decision under subsection (a)(1) or section 105(c)), shall, upon conviction, be fined not more than $250,000, or imprisoned for not more than 1 year, or both, except that if the operator commits the violation after having been previously convicted of a violation under this paragraph and if, the operator knows or has reason to know that such subsequent violation has the potential to expose a miner to risk of serious injury, serious illness, or death, the operator shall, upon conviction, be fined not more than $1,000,000, or imprisoned for not more than 5 years, or both. (2) Significant risk of serious injury, serious illness, or death Whoever, being an operator, knowingly— (A) tampers with or disables a required safety device (except with express authorization from the Secretary), (B) violates a mandatory health or safety standard, or (C) violates or fails or refuses to comply with an order issued under section 104 or 107, or any order incorporated in a final decision issued under this Act (except an order incorporated in a decision under subsection (a)(1) or section 105(c)), and thereby recklessly exposes a miner to significant risk of serious injury, serious illness, or death, shall, upon conviction, be fined not more than $1,000,000 or imprisoned for not more than 5 years, or both, except that if the