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.
Accepting Applications Soon
We expect to begin accepting applications in October 2025—subject to change.
This is a first-come, first-served grant based on criteria described in the Request for Grant Applications.
The information below is provided for reference only. When we begin accepting applications, we will update this webpage with the final requirements and documents.
Join our TERP email list to get updates on important dates for grant applications.
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 projects
- Replacing 2006 or older, diesel-fueled school buses with buses that are the current or previous model year at the time you apply. If a bus is used under a lease or lease-purchase agreement, it only qualifies as a retrofit project.
- Purchasing and installing a retrofit system on an eligible school bus.
Vehicles eligible for replacement or retrofit must:
- be powered by a diesel engine;
- currently operate on a regular, daily route to and from a school during the regular school year—and for the two years immediately preceding the signature date on the application;
- be in good operating condition, and, for retrofit projects, have at least five years of remaining useful life; and
- have been owned, leased (retrofit only), or commercially financed, registered, and operated by the applicant in Texas for at least the two years immediately preceding the signature date on the application.
Eligible areas
Texas
Review documents to ensure eligibility
Documents below are for reference only. We will provide updated documents when we begin accepting applications.
Step 2 Collect documents and fill out forms
Forms below are for reference only. We will provide updated forms when we begin accepting applications.
Replacement projects
Replacement project applications must be submitted online (see step 3).
- IRS Form W-9
- Supplemental Form - Waiver Request (TCEQ-20804-c) (if applicable)
- Texas Title and Registration
- Equipment Photos
Retrofit projects
Step 3 Submit your application
Replacement applications
Applications must be completed and submitted electronically through TERP Online SUNSS.
- Review the online application instructions (coming soon).
- Complete the online application.
- Upload IRS Form W-9 and other required attachments (if applicable).
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
Air Grants Division, MC-204 (TCSB)
P.O. Box 13087
Austin, TX 78711-3087
Express Mail
Air Grants Division, MC-204 (TCSB)
12100 Park 35 Circle
Building F, 1st Floor, Suite 1301
Austin, TX 78753