((a)) ** Authority of the Attorney General** The Attorney General shall take such measures as may be necessary to—

((1)) reduce the backlog in the processing of immigration benefit applications, with the objective of the total elimination of the backlog 1 year after ;

((2)) make such other improvements in the processing of immigration benefit applications as may be necessary to ensure that a backlog does not develop after such date; and

((3)) make such improvements in infrastructure as may be necessary to effectively provide immigration services.

((b)) ** Authorization of appropriations**

((1)) ** In general** There is authorized to be appropriated to the Department of Justice from time to time such sums as may be necessary for the Attorney General to carry out subsection (a).

((2)) ** Designation of account in treasury** Amounts appropriated pursuant to paragraph (1) may be referred to as the “Immigration Services and Infrastructure Improvements Account”.

((3)) ** Availability of funds** Amounts appropriated pursuant to paragraph (1) are authorized to remain available until expended.

((4)) ** Limitation on expenditures** None of the funds appropriated pursuant to paragraph (1) may be expended until the report described in has been submitted to Congress.section 1574(a) of this title