Beginning in Fiscal Year (FY) 2023, this bill disallows the Maryland Transit Administration from entering into a contract to purchase any buses for its transit bus fleet that are not zero-emission buses. Additionally, on or before January 1, 2022, and each year after, the Maryland Transit Administration will submit a report to the Senate Budget and Taxation Committee, the House Appropriations Committee, and the House Environment and Transportation Committee. The report will include a schedule for converting the State transit bus fleet to exclusively zero-emission buses, an evaluation of the necessary charging infrastructure, a plan for transitioning adversely affected State employees to certain similar or other employment, a certain estimate of the potential reduction in emissions, and certain financial analyses related to the projected costs of the conversion to zero-emission buses.