No Community Development Block Grants for Sanctuary Cities Act

This bill amends federal law to block Community Development Block Grants (CDBG) from going to local governments that qualify as "sanctuary jurisdictions." A sanctuary jurisdiction is defined as a city or county that restricts sharing immigration status information with federal authorities or refuses to comply with certain immigration detainer requests. The law requires grant recipients to certify they are not sanctuary jurisdictions during the grant period. This directly affects cities and counties with policies limiting cooperation on immigration enforcement, potentially withholding federal funds for housing, infrastructure, and community programs. The exception for jurisdictions not sharing information when victims or witnesses of crimes come forward is included.