1. Short title This Act may be cited as the Legacy IT Reduction Act of 2023 . 2. Definitions In this Act: (1) Administrator The term Administrator means the Administrator of General Services. (2) Agency The term agency means an agency described in paragraph (1) or (2) of section 901(b) of title 31, United States Code. (3) Chief information officer The term Chief Information Officer means a Chief Information Officer designated under section 3506(a)(2) of title 44, United States Code. (4) Comptroller general The term Comptroller General means the Comptroller General of the United States. (5) Congressional oversight committee The term congressional oversight committee means, with respect to a particular agency, a committee or subcommittee of the Senate and the House of Representatives that provides oversight of the agency. (6) Director The term Director means the Director of the Office of Management and Budget. (7) Information technology The term information technology has the meaning given the term in section 11101 of title 40, United States Code. (8) IT working capital fund; legacy information technology system The terms IT working capital fund and legacy information technology system have the meaning given the terms in section 1076 of the National Defense Authorization Act for Fiscal Year 2018 ( 40 U.S.C. 11301 note; Public Law 115–91 ). (9) National security system The term national security system has the meaning given the term in section 11103 of title 40, United States Code. (10) Technology Modernization Fund The term Technology Modernization Fund means the fund established under section 1078(b)(1) of the National Defense Authorization Act for Fiscal Year 2018 ( 40 U.S.C. 11301 note