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Governmental Alternative Fuel Fleet Grant Program (GAFF)

Provides grants to purchase or lease new vehicles that operate primarily on compressed natural gas, liquified natural gas, liquified petroleum gas (propane), hydrogen fuel cells, or electricity.

A Program of the Texas Emissions Reduction Plan (TERP)

Currently Closed

Stay up to date on TERP programs. Join our TERP Hot Topics email listExit the TCEQ to get updates.

How to Apply

Review the following documents before completing and submitting the Application Form (provided in Step 3):

Eligible Applicants

State agencies, counties, municipalities, school districts, junior college districts, river authorities, water or other special districts, or other political subdivisions that operate a fleet of more than 15 motor vehicles.

Eligible Projects

TCEQ will award GAFF grants on a competitive basis to purchase or lease new on-road vehicles that operate using the following alternative fuels:

  • compressed natural gas
  • liquified natural gas
  • liquified petroleum gas (propane)
  • hydrogen fuel cells
  • electricity

Up to 10% of awarded funds may be granted for the purchase, lease, or installation of refueling infrastructure or equipment, or refueling services in conjunction with an eligible vehicle purchase or lease.

Eligible Areas

Grants will be made available statewide, but priority will be given to projects in or near a Nonattainment Area or in an Affected County. See the application/pdfRFGA for a list of the Nonattainment Areas and Affected Counties.

TCEQ has established pre-determined grant amounts for the purchase or lease of new motor vehicles. Grant amounts per vehicle are provided below by vehicle class:

  • Class 1 vehicles: $15,000
  • Class 2-3 vehicles: $20,000
  • Class 4-6 vehicles: $35,000
  • Class 7-8 vehicles: $70,000

There are two options to complete your application:

Option 1

Complete an application using the fillable PDF below:

Option 2

Complete your application electronically via TERP Online. Now Available!

TCEQ requires applicants to complete the W-9 to certify their taxpayer identification number (TIN). The W-9 Form must be submitted with the Application Forms.

TCEQ is committed to accessibility. If you would like to request a more accessible version of the project application, please contact the TERP program at 800-919-TERP (8377).

The following items must be completed in full to be considered for eligibility:

  • Project Application
  • W-9

You may submit your application via TERP Online, mail, or email to on or before 12:00 a.m. CT, June 15, 2021. If submitting by mail, use one of the addresses below:

Regular Post Delivery
Texas Commission on Environmental Quality
Air Grants Division
GAFF, MC-204
P.O. Box 13087
Austin, TX 78711-3087

Express Delivery
Texas Commission on Environmental Quality
Air Grants Division
GAFF, MC-204
12100 Park 35 Circle
Building F, 1st Floor, Room 1301
Austin, TX 78753

For questions on obtaining the RFGA and GAFF Example Contract, determining the eligibility of a project, or completing and submitting an application, please contact us to discuss.