If an applicable existing waiver described in subparagraph (A) would otherwise expire before January 1, 2010, notwithstanding the requirements of subsections (e) and (f) of section
1315 of this title, a State may submit, not later than September 30, 2009, a request to the Secretary for an extension of the waiver. The Secretary shall approve a request for an extension of an applicable existing waiver submitted pursuant to this subparagraph, but only through December 31, 2009.