continues to meet the requirements of subsection (c) of this section and any other criteria or indices of effectiveness specified by the Secretary in regulations. Whenever the Secretary finds, on the basis of such evaluation, that in the administration of the State plan there is a failure to comply substantially with any provision of the State plan (or any assurance contained therein), the Secretary shall make an initial determination of whether the failure is of such a nature that the plan should be withdrawn or whether the failure is of such a nature that the State should be given the opportunity to remedy the deficiencies, and provide notice of the Secretary’s findings and initial determination. (2) If the Secretary makes an initial determination to reassert and exercise concurrent enforcement authority while the State is given an opportunity to remedy the deficiencies, the Secretary shall afford the State an opportunity for a public hearing within 15 days of such request, provided that such request is made not later than 10 days after Secretary’s notice to the State. The Secretary shall review and consider the testimony, evidence, or written comments, and not later than 30 days following such hearing, make a determination to affirm, reverse, or modify the Secretary’s initial determination to reassert and exercise concurrent enforcement authority under sections 8, 9, 10, 13, and 17 with respect to standards promulgated under section 6 and obligations under section 5(a). Following such a determination by the Secretary, or in the event that the State does not request a hearing within the timeframe set forth in this paragraph, the Secretary may reassert and exercise such concurrent enforcement authority, while a final determination is pending under paragraph (3) or until the Secretary has determined that the State has remedied the deficiencies as provided under paragraph (4). Such determination shall be published in the Federal Register. The procedures set forth in section 18(g) shall not apply to a