This action announces a three-month stay and reconsideration of a certain reporting requirement in the petition process for the import of used class I controlled substances promulgated under sections 604 and 606 of the Clean Air Act Amendments of 1990. The effectiveness of 40 CFR 82.13(g)(2)(viii), that requires the importer to certify that the purchaser of the controlled substance is liable for the tax, is stayed for three months pending reconsideration. The EPA is issuing this stay pursuant to section 307(d)(7)(B) of the Clean Air Act, which provides the Administrator authority to stay the effectiveness of a rule during reconsideration. In the proposed rules Section of today's Federal Register document, EPA is proposing to extend this stay to the extent necessary to complete reconsideration (including any appropriate regulatory action) of the rule in question.