Mass Transit: Use of Alternative Fuels in Transit Buses

Pursuant to a legislative requirement, GAO reported on the: (1) status of the development and use of alternative fuel technologies in transit buses, particularly the use of compressed natural gas (CNG) as a fuel; (2) air quality benefits of such technologies; (3) costs incurred by transit operators to use CNG buses, as well as other alternative fuels, compared with the costs to use diesel buses; and (4) primary incentives and disincentives for using these technologies.