The main purpose of this legislation, known as the Fair Access to Swift and Timely Justice Act or the FAST Justice Act, is to ensure that federal employees and job applicants receive timely decisions from the Merit Systems Protection Board (MSPB) regarding their appeals. The MSPB is responsible for handling disputes related to federal employment, and this act aims to address delays in their decision-making process. Key provisions of the act include a new rule that allows employees or applicants to take legal action if the MSPB does not act on their appeal within 120 days.