Zeroing in on Zero-Emission Buses: March 2026 Edition

Updated annually, Zeroing in on Zero-Emission Buses (ZEBs) provides the number of funded, ordered, delivered, and/or deployed transit ZEBs within the United States. This definitive, data-driven report offers the only comprehensive nationwide ZEB dataset and delivers insights that inform market investment, accelerate technology deployment, and support strategic transit planning and decision-making. 

The latest Zeroing in on ZEBs report shows that zero-emission transit buses are a steadily expanding nationwide market. As of July 2025, more than 8,100 full-size and nearly 1,400 small ZEBs have been funded, ordered, delivered, or deployed, representing sustained double-digit growth despite procurement delays, supply chain constraints, and policy uncertainty. Adoption is spreading across regions, vehicle technologies, and use cases, signaling that transit agencies are making pragmatic, repeatable decisions regarding technology, infrastructure, and fleet modernization.