; and (B) in the case of a State, the heads of appropriate Federal departments and agencies shall take such steps as may be necessary to reduce the amount of Federal funds that are made available to such State and to require such State to repay such amounts previously made available, as appropriate, until such time as the Comptroller General is able to confirm such compliance. (c) Sense of Congress It is the sense of Congress that the funding prohibition under this section should not interfere with the responsibility of the Secretary of Homeland Security to take actions as may be required to secure the southern border of the United States. 4. Oversight The Inspector General of the Federal department or agency responsible for carrying out the treaty referred to in section 3(a)(3) shall oversee the use of funds received and expended pursuant to such treaty to carry out the Secure Fence Act of 2006, section 102 of the Illegal Immigration Reform and Immigrant Responsibility Act of 1996 ( 8 U.S.C. 1103 note), or any other related provision of law, or to otherwise build a border fence, related physical barriers or infrastructure, or wall along the southern border of the United States, including to carry out any activities related to such construction. Such oversight shall include oversight regarding the use of high risk contractor practices, including limited or sole source contracting, any cost overruns, significant delays in contract execution, and departmental contract management and oversight of such funds. 5. Budgetary impact (a) In general The Director of the Office of Management and Budget shall include a statement of budgetary impact, including costs, benefits, and revenues, as a result of and related to any executive order or presidential memorandum issued relating to border security during the period of fiscal year 2017 through fiscal year 2021. (b) Contents Any statement under subsection (a) shall include— (1) a narrative summary of the budgetary impact of such order or memorandum on the Federal Government