; and (D) by striking such person, punishment shall be by a fine of not more than $20,000 or by imprisonment for not more than one year, or by both and inserting such employer, the employer shall be fined under title 18, United States Code, or imprisoned for not more than 20 years, or both . (2) Penalty for discharge or discrimination against employee for exercise of rights Section 17 of the Occupational Safety and Health Act of 1970 ( 29 U.S.C. 666 ) is amended by adding at the end the following: (m) Penalties for discharge or discrimination against employee for exercise of rights In addition to any disposition under section 11(c), any employer who violates section 11(c)(1) shall be punished as follows: (1) First violation For the first such violation, the employer shall be fined not more than $50,000. (2) Second or subsequent violation If the employer commits such a violation after receiving a penalty under paragraph (1), the employer shall be fined not less than $20,000 and not more than $200,000. (3) Violation causing or significantly contributing to serious illness, serious injury, or death Paragraphs 1 and 2 notwithstanding, if such violation causes or significantly contributes to a serious illness or serious injury (as those terms are defined in section 519(b)(6) of the Federal Food, Drug, and Cosmetic Act ( 21 U.S.C. 360i )) or death, the employer shall be fined under title 18, United States Code, or imprisoned for not more than 10 years, or both. . (d) Migrant and Seasonal Agricultural Worker Protection Act Section 501 of the Migrant and Seasonal Agricultural Worker Protection Act ( 29 U.S.C. 1851 ) is amended— (1) in subsection (a) by striking not more than $1,000 or sentenced to prison for a term not to exceed one year, or both and inserting under title 18, United States Code, or imprisoned for not more than three years, or both