\r\nData is subject to changes in reporting methods and definitions through the years.
\r\nFor more detailed vehicle registration counts, visit the AFDC Vehicle Registration Counts website (https://afdc.energy.gov/vehicle-registration)\r\nThe distinction between \"Diesel\" and \"Biodiesel\" vehicle registrations in this dataset is derived from original equipment manufacturer (OEM) VIN-decoding, which typically flags vehicles specifically marketed with B20 capability. However, virtually all diesel vehicles on the U.S. road today are approved by OEMs to operate on at least a B5 biodiesel blend (5% biodiesel), and a significant majority of modern diesel engines are fully warranted for B20 (20% biodiesel). Therefore, the specific \"Biodiesel\" registration count underestimates the true physical capability of the U.S. diesel fleet to utilize biodiesel fuels.
", "context": "The chart illustrates the annual percent change of light-duty vehicles, by fuel type, registered in the United States from 2016 through 2025. Hydrogen fuel cell vehicles (HFCVs) consistently showed the greatest growth in registration counts until 2020. This is largely because initial vehicle registration counts were low. Annual changes are more volatile for vehicle fuel types with small populations, such as hydrogen, compressed natural gas, and propane. From 2016 to 2023, the highest average percentage increases are from electric vehicles with 28.2%, HFCVs with 19.4%, and Plug-in Hybrid Electric Vehicles (PHEVs) with 19.2%. The largest percent decrease is found in compressed natural gas vehicles, averaging -146.3% because of very limited fueling stations. See relative vehicle population sizes at Light-Duty AFV Registrations, AFV and HEV Model Offerings, by Manufacturer, U.S. Plug-in Electric Vehicle Sales by Model, and the Energy Information Administration's Fleet and Fuel Data.
To view more details, notes, and acronyms, please download the Excel spreadsheet.", "thumbnail": "/files/u/data_set/10881/thumbnail/2f127a9631d3cbbe345a4bced8819a61.png", "last_update": "June 2026", "tags": [ "ethanol", "electricity", "hydrogen", "natural-gas", "propane", "compressed-natural-gas", "all-electric-vehicles", "plug-in-hybrid-electric-vehicles", "hybrid-electric-vehicles", "flex-fuel-vehicles", "natural-gas-vehicles", "propane-vehicles", "diesel-vehicles", "fuel-trends" ], "spreadsheet": "/files/u/data_set/10881/data_source/d6e35e79b1f80c60238b12cc8717ff59.xlsx", "xaxis": "", "yaxis": "Percent Change", "has_negatives": true, "round_percents": false, "credits": { "enabled": true }, "colors": [ "#2F7ED8", "#FABD17", "#7AB800", "#910000", "#00B2FF", "#492970", "#F28F43", "#007934", "#AA4643", "#A6C96A", "#005B82", "#30C386", "#E37222", "#3226E5", "#C9B519", "#BE00AC", "#0C4746", "#89A54E", "#C96219", "#3D96AE" ], "plotOptions": {} }, "Germany_current_interval": "2026-01-01 to 2026-07-01, 181 days", "AFDC_current2025": { "Electric (EV)": 5689100, "Plug-In Hybrid Electric (PHEV)": 1765700, "Hybrid Electric (HEV)": 13929600, "Biodiesel": 3375000, "Ethanol/Flex (E85)": 19561100, "Compressed Natural Gas (CNG)": 23200, "Propane": 5500, "Hydrogen": 16600, "Methanol": 0, "Gasoline": 240682100, "Diesel": 7176500, "Unknown Fuel": 1616900 } }