Notwithstanding anything in this chapter to the contrary, those provisions of Act 2009-461 which revise or create Sections 37-2A-8(b)(2)a., 37-2A-8(b)(2)b., 37-2A-8(b)(2)c., 37-2A-8(b)(3)a., 37-2A-8(b)(3)b., 37-2A-8(b)(3)c., and 37-2A-8(b)(3)d. shall not be applicable to any incumbent local exchange carrier until and unless such carrier has waived in writing with the commission any exemption, suspension, or modification otherwise available under 47 U.S.C. § 251(f).