in innovation centers. (iii) Supplement, not supplant Amounts authorized to be appropriated under clause (ii) shall supplement and not supplant any other amounts authorized to be appropriated for the BUILD program. (B) INFRA grants (i) Authorization of appropriations There is authorized to be appropriated to the Secretary of Transportation $300,000,000 for each of fiscal years 2022 through 2032 to carry out projects under the nationally significant freight and highway projects program under section 117 of title 23, United States Code, in innovation centers. (ii) Supplement, not supplant Amounts authorized to be appropriated under clause (i) shall supplement and not supplant any other amounts authorized to be appropriated for the nationally significant freight and highway projects program under section 117 of title 23, United States Code. (C) TIFIA program (i) Lines of credit Section 604(b)(2) of title 23, United States Code, is amended— (I) by striking The total and inserting the following: (A) In general Except as provided in subparagraph (B), the total