; and (ii) assesses the degree to which the project can be replicated in other regions, systems, and situations. (C) Technical assistance On the request of a grant recipient, the Secretary shall provide technical assistance to the grant recipient to carry out the project. (D) Best practices The Secretary shall make available to the public— (i) a copy of each evaluation carried out under subparagraph (B); and (ii) a description of any best practices identified by the Secretary as a result of those evaluations. (E) Report to Congress Not later than the date on which the Secretary completes the last evaluation required under subparagraph (B), the Secretary shall submit to Congress a report containing the results of each evaluation carried out under such subparagraph. (c) Authorization of appropriations There is authorized to be appropriated $15,000,000 to carry out this section, to remain available until expended. 5 Accelerated Adoption of Energy Efficient Engines and Vehicles 32501. Reauthorization of diesel emissions reduction program Section 797(a) of the Energy Policy Act of 2005 ( 42 U.S.C. 16137(a) ) is amended— (1) by striking $100,000,000 and inserting $200,000,000 ; and (2) by striking 2016 and inserting 2024 . 32502. Reauthorization of clean school buses program (a) Definitions (1) Alternative fuel Section 741(a)(2) of the Energy Policy Act of 2005 ( 42 U.S.C. 16091(a) ) is amended— (A) in subparagraph (B), by striking or after the semicolon; (B) in subparagraph (C), by striking the period at the end and inserting ; or