; and (B) meet the highest nonproliferation standards for the exchange of nuclear materials, technology, equipment, and information between the United States and Australia. (5) Subsequent sales A sale of a Virginia class submarine that occurs after the sales described in paragraph (1) may occur only if such sale is explicitly authorized in legislation enacted after the date of the enactment of this Act. (6) Costs of transfer Any expense incurred by the United States in connection with a transfer under paragraph (1) shall be charged to the Government of Australia. (7) Crediting of receipts Notwithstanding any provision of law pertaining to the crediting of amounts received from a sale under section 21 of the Arms Export Control Act ( 22 U.S.C. 2761 ), any funds received by the United States pursuant to a transfer under paragraph (1) shall— (A) be credited, at the discretion of the President, to— (i) the fund or account used in incurring the original obligation for the acquisition of submarines transferred under paragraph (1); (ii) an appropriate fund or account available for the purposes for which the expenditures for the original acquisition of submarines transferred under paragraph (1) were made; or (iii) any other fund or account available for the purpose specified in paragraph (8)(B); and (B) remain available for obligation until expended. (8) Use of funds Subject to paragraphs (9) and (10), the President may use funds received pursuant to a transfer under paragraph (1)— (A) for the acquisition of submarines to replace the submarines transferred to the Government of Australia