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Clean Transportation Triangle (CTT) Program and Alternative Fueling Facilities Program (AFFP)

The CTT program provides grants for the creation of natural gas fueling stations in the CTT-eligible counties. The AFFP provides grants for the construction, expansion, or acquisition of facilities to store, compress, or dispense alternative fuel in the nonattainment areas of Texas.

A Program of the Texas Emissions Reduction Plan (TERP)

The latest grant application period has ended. Applications may no longer be submitted for funding consideration. Grant documents are provided for reference only.

FY17 CTT/AFFP Application Workshop Presentation (PDF)
Frequently Asked Questions (PDF)


Reports and Information


    How Do I Know if I Am Eligible for a Grant?

    This section lists general information about the types of projects that may be eligible for grant funding and eligible project locations. For complete information on the types of projects and expenses that may be eligible for grant funding, refer to the latest Request for Grant Applications (RFGA).

    Eligible Counties:

    A map of the eligible counties for CTT projects and the eligible counties for AFFP projects can be found below.

    Eligible Projects:

    Eligible CTT/AFFP projects include new station construction or the expansion of an existing facility that will provide a new fueling service. Under the CTT program, TCEQ will give preference to stations:

    • that will provide both Liquified Natural Gas and Compressed Natural Gas at a single location;
    • that are located inside the triangular area between the Houston, San Antonio, and Dallas-Fort Worth areas; and
    • are located not more than one mile from an interstate highway system within the CTT-eligible counties.

Though both the CTT and AFFP grant programs have unique features (i.e., fuel options, funding allocations and geographic requirements), because of the similarities between these programs, the TCEQ solicits applications for both programs under a joint Request for Grant Applications (RFGA) and provides one application track for applicants to apply to one or both programs, depending on the eligibility of the project.

Applications meeting the project eligibility requirements for both programs will be considered under both programs. However, a project may only be awarded a grant from one of the programs, and not both. Applications meeting the eligibility requirements for only one of the programs will only be considered for that program.

Eligible CTT projects include:

  • Compressed Natural Gas (CNG) stations;
  • Liquefied Natural Gas (LNG) stations; or
  • Stations dispensing both CNG and LNG.

Eligible AFFP projects include:

  • Biodiesel;
  • Hydrogen;
  • Methanol;
  • Natural Gas (CNG and/or LNG);
  • Propane; or
  • Electric Charging.

Applicants should review the Joint CTT/AFFP Request for Grant Applications (RFGA) (PDF) for detailed requirements for each project type and information about eligibility.

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Contact Information:

Camen Gupta

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TERP Meetings & Workshops