Make Transportation Authorities Accountable and Transparent Act

HR 171 requires the Transportation Department's inspector general to audit how the five largest public transit agencies (by 2019 ridership) spent coronavirus relief funds. It covers spending from specific pandemic aid bills like the CARES Act and American Rescue Plan. The audit must track all funds received and how they were used, with a report to Congress within 180 days of the bill's enactment. This aims to increase transparency around federal transit funding during the pandemic.