Diesel was the leading fuel type for commuter buses in the United States between 2014 and 2023, representing ** percent of the fleet in 2023. Buses using CNG, LNG and other blends were the most popular category of alternative fuel buses, making up *** percent of the fleet.
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APTA. (April 1, 2024). Commuter bus fleet in the United States between 2014 and 2023, by fuel type [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 28, 2026, from /statistics/1250502/united-states-transit-bus-fleet-by-fuel-type/
APTA. "Commuter bus fleet in the United States between 2014 and 2023, by fuel type." Chart. April 1, 2024. ÌÇÐÄÆÆ½â°æ. Accessed July 28, 2026. /statistics/1250502/united-states-transit-bus-fleet-by-fuel-type/
APTA. (2024). Commuter bus fleet in the United States between 2014 and 2023, by fuel type. ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 28, 2026. /statistics/1250502/united-states-transit-bus-fleet-by-fuel-type/
APTA. "Commuter Bus Fleet in The United States between 2014 and 2023, by Fuel Type." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 1 Apr 2024, /statistics/1250502/united-states-transit-bus-fleet-by-fuel-type/
APTA, Commuter bus fleet in the United States between 2014 and 2023, by fuel type ÌÇÐÄÆÆ½â°æ, /statistics/1250502/united-states-transit-bus-fleet-by-fuel-type/ (last visited July 28, 2026)
Commuter bus fleet in the United States between 2014 and 2023, by fuel type [Graph], APTA, April 1, 2024. [Online]. Available: /statistics/1250502/united-states-transit-bus-fleet-by-fuel-type/