; (2) the term law enforcement officer means any officer, agent, or employee of a State, unit of local government, or Indian tribe authorized by law or by a government agency to engage in or supervise the prevention, detection, or investigation of any violation of criminal law, or authorized by law to supervise sentenced criminal offenders; (3) the term State means each of the 50 States, the District of Columbia, the Commonwealth of Puerto Rico, the United States Virgin Islands, American Samoa, Guam, and the Northern Mariana Islands; and (4) the term unit of local government means a county, municipality, town, township, village, parish, borough, or other unit of general government below the State level. 3034. Authorization of appropriations (a) In general There are authorized to be appropriated to carry out this part, $100,000,000 for each of fiscal years 2018 through 2022. (b) Remaining funds Any amounts made available to carry out this part that are unobligated at the end of each fiscal year, shall be returned to the general fund of the Treasury for debt reduction. . 4. Offset (a) Findings Congress finds the following: (1) In 2010, the most current year for which figures are available, the Federal Government spent $1,670,000,000 operating and maintaining unutilized and underutilized buildings. (2) Federal agencies have consistently indicated that the disposal efforts of the agencies are often hampered by statutory requirements. (b) Offset Notwithstanding subtitle I of title 40, United States Code, or any other provision of law, the Administrator of General Services, in consultation with the Director of the Office of Management and Budget, may immediately identify and dispose of, through sale at fair market value or demolition if unsuitable for sale, the most financially burdensome excess Federal property, so as to generate not more than $500,000,000 in savings by the end of fiscal year 2022.