; or (ii) establishes a goal that within 10 years from the date of approval of such plan the recipient will convert a set percentage of the total bus fleet of such recipient to zero emission buses; and (C) for which the recipient has performed a fleet transition study that includes optimal route planning and an analysis of how utility rates may impact the recipient’s operations and maintenance budget. . (b) Metropolitan transportation planning Section 5303(b) of title 49, United States Code, is amended by adding at the end the following: (8) Maintenance area The term maintenance area has the meaning given the term in sections 171(2) and 175A of the Clean Air Act ( 42 U.S.C. 7501(2) ; 7505a). . 2404. Restoration to state of good repair formula subgrant Section 5339 of title 49, United States Code, is amended by adding at the end the following: (d) Restoration to state of good repair formula subgrant (1) General authority The Secretary may make grants under this subsection to assist eligible recipients and subrecipients described in paragraph (2) in financing capital projects to replace, rehabilitate, and purchase buses and related equipment. (2) Eligible recipients and subrecipients Not later than September 1 annually, the Secretary shall make public a list of eligible recipients and subrecipients based on the most recent data available in the National Transit Database to calculate the 20 percent of eligible recipients and subrecipients with the highest percentage of asset vehicle miles for buses beyond the useful life benchmark established by the Federal Transit Administration. (3) Urban apportionments Funds allocated under section 5338(a)(2)(L)(ii) shall be— (A) distributed to— (i) designated recipients in an urbanized area with a population of more than 200,000 made eligible by paragraph (1); and (ii) States based on subrecipients made eligible by paragraph (1) in an urbanized area under 200,000