(a) Repowering allowances. In addition to allowances allocated under § 73.10(b), the Administrator will allocate, to each existing unit (under § 72.44(b)(1) of this chapter) with an approved repowering extension plan, allowances for use during the repowering extension period approved under § 72.44(f)(2)(ii) of this chapter (including a prorated allocation for any fraction of a year) equal to:

$$ where: 1995 SIP = Most stringent federally enforceable State implementation plan SO2 emissions limitation for 1995. 1995 Actual Rate = 1995 actual SO2 emissions rate Unit's Adjusted Basic Allowances are as listed in the following table

(b) Upon commencement of commercial operation of a new unit (under § 72.44(b)(2) of this chapter) with an approved repowering extension plan, allowances for use during the repowering extension period approved will end and allocations under § 73.10(b) for the existing unit will be transferred to the subaccounts for the new unit.

(c)(1) If the designated representative for a repowering unit terminates the repowering extension plan in accordance with § 72.44(g)(1) of this chapter, the repowering allowances allocated to that unit by paragraph (a) of this section will be terminated and any necessary allowances from that unit's account forfeited, calculated in the following manner:

$$ where: Forfeiture Period = difference (as a portion of a year) between the end of the approved repowering extension and the end of the repowering extension under § 72.44(g)(1)(ii) 1995 SIP = Most stringent federally enforceable State implementation plan SO2 emissions limitation for 1995. 1995 Actual Rate = 1995 actual SO2 emissions rate Unit's Adjusted Basic Allowances are as listed in the table in paragraph (a) of this section.

(c)(2) The Administrator will reallocate any allowances forfeited in paragraph (c)(1) of this section with a compliance use date of 2000 or any allowances remaining in the repowering reserve to all Table 2 units' years 2000 through 2009 subaccounts in the following manner:

[53 FR 15713, Mar. 23, 1993, as amended at 63 FR 51765, Sept. 28, 1998]