; (ii) model interconnection procedures, including appropriate fast track procedures; and (iii) model rules for determining and assigning interconnection costs. (B) Standards The standards established under subparagraph (A) shall, to the maximum extent practicable, reflect current best practices (as demonstrated in model codes and rules adopted by States) to encourage the use of distributed generation (such as combined heat and power technology and waste heat to power technology) while ensuring the safety and reliability of the interconnected units and the distribution and transmission networks to which the units connect. (C) Variations In establishing the model standards under subparagraph (A), the Secretary shall consider the appropriateness of using standards or procedures that vary based on unit size, fuel type, or other relevant characteristics. . (b) Compliance (1) Time limitations Section 112(b) of the Public Utility Regulatory Policies Act of 1978 ( 16 U.S.C. 2622(b) ) is amended by adding at the end the following: (7) (A) Not later than 90 days after the date on which the Secretary completes the standards required under section 111(d)(20), each State regulatory authority (with respect to each electric utility for which the authority has ratemaking authority) and each nonregulated electric utility shall commence the consideration referred to in that section, or set a hearing date for such consideration, with respect to each standard. (B) Not later than 2 years after the date on which the Secretary completes the standards required under section 111(d)(20), each State regulatory authority (with respect to each electric utility for which the authority has ratemaking authority) and each nonregulated electric utility shall— (i) complete the consideration under subparagraph (A); (ii) make the determination referred to in section 111 with respect to each standard established under section 111(d)(20)