Amend CSHB 2481 by adding the following appropriately numbered section and renumbering the subsequent sections of the bill accordingly: SECTION . Subchapter B, Chapter 382, Health and Safety Code, is amended by adding Section 382.0173 to read as follows: Sec. 382.0173. ADOPTION OF RULES REGARDING CERTAIN STATE IMPLEMENTATION PLAN REQUIREMENTS AND STANDARDS OF PERFORMANCE FOR CERTAIN SOURCES. (a) The commission shall adopt rules to comply with Sections 110 (a) (2) (D) and 111(d) of the federal Clean Air Act (42 U.S.C. Sections 7410 and 7411). In adopting the rules, the commission shall adopt and incorporate by reference 40 C.F.R. Subparts AA through II and Subparts AAA through III of Part 96 and 40 C.F.R. Subpart HHHH of Part 60. The commission shall adopt a state implementation plan in accordance with the rules and submit the plan to the United States Environmental Protection Agency for approval according to the schedules provided by 40 C.F.R. Sections 51.123 (d) (1), 51.124 (d) (1), and 60.24 (h)(2). (b) The commission may require emissions reductions in conjunction with implementation of the rules adopted under Subsection (a) only for electric utility steam generating units, as defined by 40 C.F.R. Section 60.41a. The commission shall make a permanent allocation without cost to electric generating units as defined by 40 C.F.R. Section 51.123 using the United States Environmental Protection Agency's allocation method as specified by 40 C.F.R. Section 60.4142(a) (1) (i), as issued by that agency on March 15, 2005, or 40 C.F.R. Section 96.142 (a) (1) (i), as issued by that agency on March 10, 2005, as applicable. The commission shall make new unit allocations for electric generating units in accordance with Section 416(b) of the federal Clean Air Act (42 U.S.C. Section 7651o). (c) This section applies only while the federal rules cited in this section are enforceable and does not limit the authority of the commission to implement more stringent emissions control requirements. (d) In adopting rules under Subsection (a), the commission shall incorporate any modifications to the federal rules cited in this section that result from a request for rehearing regarding those rules that is filed with the United States Environmental Protection Agency or from a petition for review of those rules that is filed with a court.