This bill aims to amend federal law to impose financial penalties on jurisdictions deemed "sanctuary jurisdictions." Specifically, it prohibits the Secretary of Transportation from obligating or awarding federal funds for infrastructure projects , including highway construction, to political subdivisions that do not comply with its provisions. To avoid these funding limitations, a political subdivision must implement a policy within one year of the bill's enactment, requiring local officials to notify the Secretary of Homeland Security at least 48 hours before releasing certain aliens from custody. This notification is mandatory if the Secretary of Homeland Security has determined the alien is not lawfully present in the United States, has informed the local detaining entity of this status 48 hours prior to release, and the alien has been in custody for at least 48 hours.