The main purpose of this legislation is to allow the U.S. government to waive costs associated with the evacuation of American citizens whose lives are at risk due to war or acts of terrorism. This aims to ensure that citizens can be safely evacuated without the burden of financial costs during emergencies. Key provisions of the legislation include an amendment to an existing law that enables the Secretary of State to waive costs related to the evacuation of U.S. citizens. This specifically applies to situations where citizens are in danger due to war or terrorism.