The Administrator or his delegate shall have the authority to issue and enforce orders during proceedings brought under this chapter. Such authority shall include the authority to issue subpenas, administer oaths, compel the attendance and testimony of witnesses and the production of books, papers, documents, and other evidence, to take depositions before any designated individual competent to administer oaths, and to examine witnesses.

Whenever on the basis of any information available to him the Administrator finds that any person subject to section 9151 of this title is in violation of any provision of this chapter or any rule, regulation, order, license, or term or condition thereof, or other requirements under this chapter, he may issue an order requiring such person to comply with such provision or requirement, or bring a civil action in accordance with subsection (b) of this section.

Any compliance order issued under this subsection shall state with reasonable specificity the nature of the violation and a time for compliance, not to exceed 30 days, which the Administrator determines is reasonable, taking into account the seriousness of the violation and any good faith efforts to comply with applicable requirements.