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Regulations for Emissions from Vehicles and Engines

Federal Fleets using Low-Greenhouse Gas Emitting Vehicles

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Overview

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.

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How do we define 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.

EISA 141 Compliance Thresholds
(maximum grams/mile of CO2 emissions)

Vehicle Type MY 2017 MY 2018 MY 2019
Passenger Cars 300 295 285
Light-duty Trucks, MDPVs 375 375 370
NOTE:

As of MY 2016, FFVs must meet the same thresholds as other cars and trucks regardless of the fuel used. For more details, see the Guidance Document in the: Guidance document and other resources section

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What vehicles are considered low GHG-emitting?

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

NOTE:

* 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.

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What are the compliance levels by agency/office?

This chart displays the EISA 141 compliance levels by federal agency as reported in the Federal Automotive Statistical Tool.**

Agency/Office Fiscal Year
2016
Compliance
Fiscal Year
2017
Compliance
Corps of Engineers, Civil Works 29% 20%
Defense Agencies 32% 89%
Department of Agriculture 68% 78%
Department of Air Force 22% 40%
Department of Army 28% 43%
Department of Commerce 100% 100%
Department of Energy 87% 88%
Department of Health and Human Services 26% 57%
Department of Homeland Security 78% 71%
Department of Housing and Urban Development 74% 66%
Department of Justice 87% 30%
Department of Labor 100% 100%
Department of Navy 56% 14%
Department of State 100% 19%
Department of the Interior 41% 32%
Department of the Treasury 100% 100%
Department of Transportation 100% 100%
Department of Veterans Affairs 96% 75%
Environmental Protection Agency 100% 100%
General Services Administration 80% 76%
National Aeronautics and Space Administration 100% 100%
Office of Personnel Management 83% 83%
Peace Corps 100% 100%
Social Security Administration 62% 83%
Tennessee Valley Authority 64% 95%
U.S. Postal Service 100% 100%
United States Marine Corps 100% 69%
NOTES:

*Vehicles that use the "functional needs" or "alternative measures" exceptions are considered compliant. For details, see page 8-9 in the guidance document listed in the section below.

**For simplicity, only agencies with 50 or more fiscal year 2015 vehicle acquisitions are displayed. Agencies with fewer acquisitions are still subject to EISA 141.

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Guidance document and other resources

Guidance Document

GHG Assessment Tool

Help with "Alternative Measures"

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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