Tire-Derived Aggregate (TDA) Grant Program

Tire-Derived Aggregate (TDA) Grant Program

Status: ACTIVE
Funder: California Department of Resources, Recycling, and Recovery (CalRecycle)
Amount: Up to US $375,000
Last Updated: January 18, 2026

Summary

The Tire-Derived Aggregate (TDA) Grant Program, administered by CalRecycle, aims to divert waste tires from landfills and foster markets for recycled tire products. With a maximum funding of $375,000 per grant, the program supports various projects such as mechanically stabilized TDA for retaining walls and low impact development for stormwater management. Eligible projects must not have been completed at the same site within three years. This initiative addresses engineering challenges while promoting environmental sustainability.

Overview

NOTE: This opportunity has two full-proposal deadlines. The first reflects the application due date. The second is the date that Required Authorization documents and Environmentally Preferable Purchasing and Practices (EPPP) Policy documents must be uploaded (if these are not submitted with the application). If the applicant does not have an EPPP Policy at the time of application, an EPPP Policy must be adopted by the secondary full-proposal due date. Tire-Derived Aggregate (TDA) Grant Program (CA) The Department of Resources Recycling and Recovery (CalRecycle) administers a program to provide opportunities to divert waste tires from landfill disposal, prevent illegal tire dumping, and promote markets for recycled-content tire products. The Tire-Derived Aggregate (TDA) Grant Program (Program) provides assistance for solving a variety of engineering challenges. TDA, which is produced from shredded tires, is lightweight, free-draining, and a less expensive alternative to conventional lightweight aggregates. Projects Projects generally fall into one of five categories (see TDA Uses for more complete descriptions): Category 1: Mechanically Stabilized TDA (retaining walls).Category 2: Low Impact Development (storm water mitigation including storm water infiltration galleries).Category 3: Lightweight fill (slope stabilization, embankment fill, landslide repair, and retaining walls).Category 4: Vibration mitigation (under rail lines).Category 5: Landfill application (aggregate replacement projects such as leachate and gas collection systems, drainage layers, leachate injection). Projects that are currently underway or that have been completed at the same location within the same facility within three years of application are not eligible. Landfill application projects do not include use of shredded waste tires as alternative daily cover or alternative intermediate cover. Funding $ 375,000 is the maximum available for individual grant awards.

Eligibility

We've imported the main document for this grant to give you an overview. You can learn more about this opportunity by visiting the funder's website.