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Grants to Replace or Retrofit School Buses

The Texas Clean School Bus program (TCSB) is designed to reduce school children’s exposure to diesel exhaust from school buses.

Now Accepting Applications

We are accepting applications for grants through 5 p.m. CT, May 22, 2026, while funds remain.

This is a first-come, first-served grant based on criteria described in the Request for Grant Applications below.

How to Apply

Step 1 Determine if you are eligible

Eligible applicants

  • All public school districts and open-enrollment charter schools in Texas.
  • Private schools do not qualify for funding.

Eligible replacement projects

  • Replacement of 2006 model year or older diesel-fueled school buses with buses of the current or previous model year at the time of application.
  • School buses proposed for replacement must currently, and for at least the two years immediately preceding the grant application, have been owned, registered, and operated by the applicant in Texas.
  • School buses proposed for replacement must currently be used on a regular daily route to and from a school during the regular school year.

Eligible retrofit projects

  • Purchase and installation of eligible retrofit systems - closed crankcase filtration systems, diesel particulate filters, or diesel oxidation catalysts.
  • A school bus proposed for retrofit must currently be used on a regular daily route to and from a school during the regular school year and have at least five years of useful life remaining.

Eligible areas

Texas

Review documents to ensure eligibility

Step 2 Estimate your maximum grant amount

Replacement projects

Review the Maximum Grant Amount Tables to determine your potential grant amount for replacement projects. Applicants may be eligible for up to the maximum grant amount listed for the type of activity or 80% of the incremental cost (the eligible costs associated with the qualifying vehicle or engine minus scrappage value), whichever is less.

Retrofit projects

See the RFGA, Section 3.3 for eligible costs for retrofit projects.

Step 3 Collect documents and fill out forms

Replacement projects

Replacement project applications must be submitted online (see step 3).

Retrofit projects

Step 4 Submit your application

Replacement applications

Applications must be completed and submitted electronically through TERP Online SUNSS.

Retrofit applications

Secure Site

Securely upload the files and select the share file(s) button. Enter "TCSB-Apply@tceq.texas.gov" as the email address.

Note: You must complete the share file(s) step to successfully complete your submission.

Learn how to create an account and submit your application in this step-by-step video.

See detailed directions for using the secure file upload site.

Regular Mail
TCEQ
Air Grants Division, MC-204 (TCSB)
P.O. Box 13087
Austin, TX 78711-3087
Express Mail
TCEQ
Air Grants Division, MC-204 (TCSB)
12100 Park 35 Circle
Building F, 1st Floor, Suite 1301
Austin, TX 78753

Questions?
Want Updates?

TERP@tceq.texas.gov

800-919-TERP (8377)

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