; and (B) worker participation in any such audit shall be protected through the same grievance mechanisms available to the worker for any other type of workplace grievance. 4. Enforcement (a) In general The Secretary may assess civil damages against a covered business entity in an amount of not more than $100,000,000 if, after notice and an opportunity for a hearing, the Secretary determines that the covered business entity has violated any requirement of section 2(b). (b) Prohibition on retaliation The Secretary may assess civil damages against a covered business entity, supplier, or on-site service provider in an amount of not more than $500,000,000 if, after notice and an opportunity for a hearing, the Secretary determines the covered business entity, supplier, or on-site service provider has willfully violated section 3(b)(1). (c) Declarative or injunctive relief The Secretary may request the Attorney General institute a civil action for relief, including a permanent or temporary injunction, restraining order, or any other appropriate order, in the district court of the United States for any district in which the covered business entity conducts business, whenever the Secretary believes that a violation of section 2(b) constitutes a hazard to workers. 5. Regulations Not later than 180 days after the date of enactment of this Act, the Secretary shall promulgate regulations to carry out this Act.