The main purpose of this legislation, known as the National Airport Supersonic Readiness Act of 2025, is to direct the Federal Aviation Administration (FAA) to conduct a study on how well certain airports in the United States are prepared to handle high-speed air travel. This includes assessing the readiness of airports to accommodate new types of aircraft that can fly faster than the speed of sound, specifically supersonic and hypersonic planes. Key provisions of the legislation require the FAA Administrator to evaluate several important factors regarding large hub airports.