; and (3) authorize the transfer of production allowances or consumption allowances among two or more persons only if the transferor and transferee are subject to an enforceable and quantifiable reduction in, respectively, annual production or consumption. (d) Schedule (1) In general (A) Regulations Subject to paragraph (3), the Administrator may, in response to a petition submitted to the Administrator in accordance with paragraph (2), promulgate regulations which establish a schedule for phasing down the production and the consumption of regulated substances that is more stringent than set forth in table 4 in subsection (b), if, based on the availability of substitutes for regulated substances, the Administrator determines that such more stringent schedule is practicable, taking into account technological achievability, commercial demands, safety, and other relevant factors, including the quantities of regulated substances available from reclaiming or from prior production or prior import. (B) Uniform application In any regulations under subparagraph (A), the Administrator shall apply any more stringent phase­down schedule uniformly to the allocation of production allowances and consumption allowances as provided under subsection (b). (2) Petition (A) Submission Any person may petition the Administrator to promulgate regulations under this subsection. (B) Disposition The Administrator shall grant or deny any petition under subparagraph (A) within 270 days after receipt of any such petition. (C) Denial If the Administrator denies any such petition, the Administrator shall publish in the Federal Register an explanation of why the petition was denied. (D) Granting If the Administrator grants any such petition, the Administrator shall promulgate regulations implementing a more stringent phasedown schedule within 365 days of granting the petition. (E) Required showing Any petition under subparagraph (A) shall include a showing by the petitioner that there are adequate data to support the petition. (F) Insufficient