This bill prohibits the United States from providing any financial contributions to the United Nations Relief and Works Agency for Palestine Refugees in the Near East (UNRWA), including both voluntary and required contributions, as well as funding through the regular UN budget. The legislation also prevents federal funds from being used to pay for U.S. delegations to UN bodies led by countries designated by the State Department as state sponsors of terrorism, and prohibits funding any UN organizations, agencies, or programs chaired by such countries. Additionally, the bill removes legal protections and immunities that UNRWA officials normally receive under international law. The bill affects UNRWA, the broader UN system, and U.S. government agencies involved in international affairs and diplomatic participation. There are no specific funding amounts or implementation timelines mentioned in the legislation.