This bill prohibits Members of Congress from using official government funds to purchase airline tickets above coach class for their official travel. The only exception allows for premium cabin seating when necessary to accommodate a medical disability or other special need. The legislation defines coach-class as the basic economy seating offered by airlines, which includes standard carry-on baggage allowance. The House Committee on House Administration and the Senate Committee on Rules and Administration will each write regulations to enforce the restriction for their respective chambers. The ban takes effect for fiscal year 2027 and applies to all subsequent fiscal years.