; and (B) by inserting , subject to the requirement that the project shall be carried out in accordance with all applicable requirements of an agreement between the Secretary and the State under this section before the period at the end; and (2) in subparagraph (B), by striking The Secretary may define the high risk categories under this subparagraph on and inserting the following: For purposes of subparagraph (A), the Secretary— (A) shall establish high risk categories in collaboration with State transportation departments; and (B) may define the categories on . 503. Advance acquisition of real property Section 108 of title 23, United States Code, is amended— (1) in subsection (a)(1), by striking may make and inserting shall make ; (2) in subsection (b), by striking (b) Federal and inserting the following: (b) Maximum participation Federal ; (3) in subsection (c)(3)— (A) in the matter preceding subparagraph (A), by striking State demonstrates to the Secretary and the Secretary finds and inserting State ensures ; (B) in subparagraph (F)— (i) by inserting of 1969 ( 42 U.S.C. 4321 et seq.) after Policy Act ; (ii) by striking this Act and inserting the Intermodal Surface Transportation Efficiency Act of 1991 ( Public Law 102–240 ; 105 Stat. 1914) ; and (iii) by inserting of 1973 ( 16 U.S.C. 1531 et seq.) after Species Act ; and (C) in subparagraph (G), by striking the Secretary and inserting the State ; and (4) in subsection (d)— (A) in paragraph (2)— (i) by striking a State each place it appears and inserting the State ; and (ii) by striking The Secretary may and inserting On receipt of a request from a State, the Secretary shall ; (B) in paragraph (3), in the matter preceding subparagraph (A), by striking , with concurrence by the Secretary, ; and (C) in paragraph (7)— (i) by striking If and inserting the following: (A) In general Subject to subparagraph (B), if