; and (2) make publicly available the current backlog (in months) to begin testing a new bus at the bus testing facility. . D Bus Grant Reforms 2401. Formula grants for buses Section 5339(a) of title 49, United States Code, is amended— (1) in paragraph (1)— (A) by inserting and subsection (d) after In this subsection ; (B) in subparagraph (A) by striking term low or no emission vehicle has and inserting term zero emission vehicle has ; (C) in subparagraph (B) by inserting and the District of Columbia after United States ; and (D) in subparagraph (C) by striking the District of Columbia, ; (2) in paragraph (2)(A) by striking low or no emission vehicles and inserting zero emission vehicles ; (3) in paragraph (4)— (A) in subparagraph (A) by inserting and subsection (d) after this subsection ; and (B) in subparagraph (B) by inserting and subsection (d) after this subsection ; (4) in paragraph (5)(A)— (A) by striking $90,500,000 and inserting $156,750,000 ; (B) by striking 2016 through 2020 and inserting 2022 through 2025 ; (C) by striking $1,750,000 and inserting $3,000,000 ; and (D) by striking $500,000 and inserting $750,000 ; (5) in paragraph (8) by striking 3 fiscal years and inserting 4 fiscal years each place such term appears; and (6) by striking paragraph (9). 2402. Bus facilities and fleet expansion competitive grants Section 5339(b) of title 49, United States Code, is amended— (1) in the heading by striking Buses and bus facilities competitive grants and inserting Bus facilities and fleet expansion competitive grants ; (2) in paragraph (1)— (A) by striking buses and ; (B) by inserting and certain buses after capital projects ; (C) in subparagraph (A) by striking buses or related equipment and inserting bus-related facilities ; and (D) by striking subparagraph (B) and inserting the following: (B) purchasing or leasing buses that will not replace buses in the applicant’s fleet at the time of application and will be used to— (i) increase the frequency of bus service