Tire-Derived Aggregate Grant Program

The Tire-Derived Aggregate (TDA) Grant Program (Program) provides assistance to local governments to solve a variety of engineering challenges, using tire derived aggregate from shredded tires as an alternative to conventional lightweight aggregates in civil engineering projects and assists in diverting waste tires from landfill disposal, prevent illegal tire dumping, and promote markets for recycled-content tire products.

Tire-Derived Aggregate (TDA) is made from shredded tires as an alternative to conventional lightweight aggregates that is: Lightweight Free-draining Less expensive Eligible Applicants Include: -All California local government entities, including cities, counties, and cities and counties. -Special districts, including transportation districts. -Joint Powers Authorities in which all JPA members are also eligible applicants. -Public school districts. -All California state agencies, including offices, departments, bureaus, and boards. -University of California, California State University, and California Community Colleges. -Private, for-profit entities.      Defined as a business intended to operate at a profit and return a profit to its owner(s).      The business must be California-based, or if in another state, must have an operational presence in   California: see Application Guidelines and Instructions for complete details and restrictions. -Non-profit organizations, except private elementary or secondary schools, registered with the federal government under section 501(c)(3), (c)(4), (c)(6), or (c)(10) of the Internal Revenue Code. -Qualifying Tribal Entities.       A Qualifying Tribal Entity is defined as a tribe, band, nation, or other organized group or community, residing within the borders of California, which:           Is recognized for special programs and services provided by the United States to Indians because of the               status of its members as Indians or:           Can prove that it is a government entity and meets the criteria of the grant program. Eligible projects include: Category 1: Mechanically Stabilized TDA for retaining walls. Category 2: Low Impact Development, stormwater mitigation including stormwater infiltration galleries. Category 3: Lightweight film, 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, and leachate injection.   How to apply: Funding - CalRecycle Home Page  Applications due October 15, 2026.