This bill aims to prohibit the use of Federal funds for providing housing assistance to individuals who are unlawfully present in the United States. The legislation broadly defines "covered housing assistance" to encompass a wide range of support, including rental assistance, housing vouchers, mortgage aid, utility payments, and various types of temporary or permanent housing accommodations. It also includes stabilization services such as housing search, placement, eviction prevention, and case management, along with administrative costs. Federal agencies would be mandated to take necessary actions to ensure compliance, which includes requiring recipients of federal funds to certify adherence to the prohibition and implementing monitoring procedures. Violations could lead to civil penalties and periods of ineligibility for future federal funding, though exceptions are made for assistance related to the enforcement of immigration or criminal laws.