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Transportation and Climate

Regulations & Standards: Federal Fleets

Low GHG-Emitting Vehicles

Section 141 of the 2007 Energy Independence and Security Act (EISA) requires federal agencies to acquire low greenhouse gas (GHG) emitting vehicles.

Each model year (MY), EPA evaluates the GHG emissions performance of the light-duty (LD) fleet to determine the maximum allowable GHG emissions level to be designated a low GHG-emitting vehicle.

Definition of a Low GHG-Emitting Vehicle

EISA 141 compliance levels are based on specific CO2 gram/mile maximum emissions levels. The CO2 emissions level threshold for any given model year will be determined by estimating the level needed to designate approximately 25% of cars and 25% of LD trucks and medium-duty passenger vehicles (MDPVs) as EISA 141 compliant.

Model Year 2014 and On

EISA 141 Compliance Thresholds
(maximum grams/mile CO2 emissions)
  MY 2014 MY 2015 MY 2016
Passenger Cars 315 305 300
Light-Duty Trucks, MDPVs 390 380 375
FFV Passenger Cars* (on E85) 360 350 300
FFV Light-Duty Trucks* (on E85) 435 425 375
*For MY 2015 and earlier:  If operated on E85. As of MY 2016, FFVs must meet the same thresholds as other cars and trucks regardless of the fuel used. See the EISA Sec. 141 Guidance (PDF) (28 pp, 1.20MB, EPA-420-B-15-070, April 2015) for more details.

Model Year 2012 and Earlier

In the first phase of the program (EPA-420-B-10-008, February 2010) , EISA 141 compliance was based on GHG scores available on EPA’s Green Vehicle Guide.

Search for Low GHG-Emitting Vehicles

Find a low GHG-emitting passenger car, truck, or FFV* for

  • Model Year 2016 (PDF) (9 pp, 287K, EPA-420-B-16-030, January 2016)
  • Model Year 2015 (PDF) (12 pp, 356K, EPA-420-B-15-009a, March 2015)
  • Model Year 2014 (PDF) (12 pp, 252K, EPA-420-B-14-016e, October 2014)

* FFVs are listed separately under vehicle type, as some FFVs only qualify when operated with E-85. These vehicles must be operated with E-85 in order to qualify as low GHG-emitting.

**Hyundai and Kia revise data for model years 2011- 2013 (November 2, 2012)


  1. EISA Sect. 141 Guidance (PDF) (28 pp, 1.20MB, EPA-420-B-15-070, April 2015)
  2. EISA Sect. 141 Final Guidance (EPA-420-B-10-008, February 2010)
  3. EISA Sect. 141 Vehicle GHG Assessment Tool Final (XLS) (34K, May 2014)
  4. For assistance with "alternative measures," agencies should look into U.S. EPA climate-related partnership programs that provide a wide variety of services and resources to measure and reduce GHG emissions. These programs include:

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