; and (B) up to $50,000,000 for the training under subparagraph (A) shall be available in fiscal year 2025. (b) Provided further , That amounts repurposed pursuant to this section that were previously designated by the Congress as an emergency requirement pursuant to a concurrent resolution on the Budget are designated as an emergency requirement pursuant to section 4001(a)(1) of S. Con. Res. 14 (117th Congress), the concurrent resolution on the budget for fiscal year 2022, and to legislation establishing fiscal year 2024 budget enforcement in the House of Representatives. 312. (a) Of the unobligated balances from amounts previously appropriated under the heading Department of Energy—Energy Programs—Nuclear Energy in division J of the Infrastructure Investment and Jobs Act ( Public Law 117–58 ) that were made available for fiscal years 2022, 2023, and 2024, up to $2,720,000,000 shall be available, in addition to amounts otherwise available, for necessary expenses to carry out the Nuclear Fuel Security Act of 2023 (section 3131 of the National Defense Authorization Act for Fiscal Year 2024 ( Public Law 118–31 )): Provided, That if insufficient unobligated balances are available from such fiscal year 2022, 2023, and 2024 amounts to fund a total amount for such purpose of up to $2,720,000,000, then up to $800,000,000 from amounts previously appropriated under the heading Department of Energy—Energy Programs—Nuclear Energy in division J of the Infrastructure Investment and Jobs Act ( Public Law 117–58 ) that are made available for fiscal year 2025 may be made available, in addition to amounts otherwise available, for such purpose to meet such total amount: Provided further, That amounts repurposed pursuant to this section may be transferred to Department of Energy—Energy Programs—American Energy Independence Fund in either fiscal year 2024 or fiscal year 2025: Provided further, That the Secretary of Energy may use the amounts repurposed, transferred, or otherwise made available pursuant to this section to enter into