Section 97.387 - Change in regulatory status(a)Notification. If a CAIR NOX Ozone Season opt-in unit becomes a CAIR NOX Ozone Season unit under § 97.304 , then the CAIR designated representative shall notify in writing the permitting authority and the Administrator of such change in the CAIR NOX Ozone Season opt-in unit's regulatory status, within 30 days of such change.(b)Permitting authority's and Administrator's actions.(1) If a CAIR NOX Ozone Season opt-in unit becomes a CAIR NOX Ozone Season unit under § 97.304 , the permitting authority will revise the CAIR NOX Ozone Season opt-in unit's CAIR opt-in permit to meet the requirements of a CAIR permit under § 97.323 , and remove the CAIR opt-in permit provisions, as of the date on which the CAIR NOX Ozone Season opt-in unit becomes a CAIR NOX Ozone Season unit under § 97.304 .(2)(i) The Administrator will deduct from the compliance account of the source that includes the CAIR NOX Ozone Season opt-in unit that becomes a CAIR NOX Ozone Season unit under § 97.304 , CAIR NOX Ozone Season allowances equal in amount to and allocated for the same or a prior control period as: (A) Any CAIR NOX Ozone Season allowances allocated to the CAIR NOX Ozone Season opt-in unit under § 97.388 for any control period after the date on which the CAIR NOX Ozone Season opt-in unit becomes a CAIR NOX Ozone Season unit under § 97.304 ; and(B) If the date on which the CAIR NOX Ozone Season opt-in unit becomes a CAIR NOX Ozone Season unit under § 97.304 is not September 30, the CAIR NOX Ozone Season allowances allocated to the CAIR NOX Ozone Season opt-in unit under § 97.388 for the control period that includes the date on which the CAIR NOX Ozone Season opt-in unit becomes a CAIR NOX Ozone Season unit under § 97.304 , multiplied by the ratio of the number of days, in the control period, starting with the date on which the CAIR NOX Ozone Season opt-in unit becomes a CAIR NOX Ozone Season unit under § 97.304 divided by the total number of days in the control period and rounded to the nearest whole allowance as appropriate.(ii) The CAIR designated representative shall ensure that the compliance account of the source that includes the CAIR NOX Ozone Season opt-in unit that becomes a CAIR NOX Ozone Season unit under § 97.304 contains the CAIR NOX Ozone Season allowances necessary for completion of the deduction under paragraph (b)(2)(i) of this section.(3)(i) For every control period after the date on which the CAIR NOX Ozone Season opt-in unit becomes a CAIR NOX Ozone Season unit under § 97.304 , the CAIR NOX Ozone Season opt-in unit will be allocated CAIR NOX Ozone Season allowances under § 97.342 .(ii) If the date on which the CAIR NOX Ozone Season opt-in unit becomes a CAIR NOX Ozone Season unit under § 97.304 is not September 30, the following amount of CAIR NOX Ozone Season allowances will be allocated to the CAIR NOX Ozone Season opt-in unit (as a CAIR NOX Ozone Season unit) under § 97.342 for the control period that includes the date on which the CAIR NOX Ozone Season opt-in unit becomes a CAIR NOX Ozone Season unit under § 97.304 : (A) The amount of CAIR NOX Ozone Season allowances otherwise allocated to the CAIR NOX Ozone Season opt-in unit (as a CAIR NOX Ozone Season unit) under § 97.342 for the control period multiplied by;(B) The ratio of the number of days, in the control period, starting with the date on which the CAIR NOX Ozone Season opt-in unit becomes a CAIR NOX Ozone Season unit under § 97.304 , divided by the total number of days in the control period; and(C) Rounded to the nearest whole allowance as appropriate.65 FR 2727, Jan. 18, 2000, as amended at 71 FR 74795, Dec. 13, 2006