The United States can transition its entire transit fleet to zero-emission vehicles (ZEV) by 2035, if federal support provides additional funding for vehicle and equipment procurement, technical assistance, and a comprehensive research and innovation program to accelerate transit vehicle technology development. 

The following report offers a roadmap for federal lawmakers in support of this policy objective, including an accounting of estimated agency costs, key assumptions underpinning those figures, acknowledgement of limitations, and other considerations. Because the federal government has long been a primary funder of transit research, technology development, and vehicle procurement, it can uniquely accelerate transit’s conversion to a 100 per cent ZEV fleet.

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