Tire-Derived Aggregate (TDA) Grant Program

Departmental Grant ID:
Portal ID:
Closed (2 total applications submitted)
Opportunity Type:
  • Grant
Last Updated:



This competitive tire grant program provides opportunities to divert waste tires from landfills, prevent illegal tire dumping, and promote markets for recycled-content tire products. The Program provides assistance to civil engineers in solving a variety of engineering challenges using Tire-Derived Aggregate (TDA), which is produced from shredded tires, is lightweight, free-draining, and a less expensive alternative to conventional aggregates.


Eligible 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).

All projects are subject to the following requirements:

• Only California-generated waste tires, processed in California, must be used in the TDA portion of the project(s).

• The project(s) must be located in California.

• A combined minimum of 500 tons of TDA must be used in the project(s), except for Low Impact Development projects, which must use a minimum of 200 tons of TDA in the project(s).

• Plans and specifications must be reviewed by CalRecycle staff and/or its contractor(s) prior to commencement of work.  The project design plans must be uploaded in GMS at a minimum 50 percent design during application submittal and 100 percent design prior to the start of the project.  The design plans must include: project costs (preliminary costs during application submittal), the project location (TDA placement), type and quantity of TDA (initial estimate during application submittal), and any analysis necessary to validate the design.

• Each project must incorporate technical assistance/training that will be provided by CalRecycle contractors and/or staff.  The following must receive CalRecycle sponsored technical training prior to implementation of the project, (1) Owner representative, (2) Construction Management engineer (Quality Assurance / Quality Control), and (3) Construction company project supervisor.

• The real property on which the project will be located must be owned by the applicant.

• If applicant’s ownership of the property on which the project(s) is located does not give it complete and clear access to the project site(s), then prior to incurring any grant-eligible costs, applicant must obtain any and all access rights (e.g., easements) to the project site(s) necessary to complete the project(s) within the grant term and shall ensure that such access extends to CalRecycle staff and/or its designated contractors for the purpose of observing the project, providing technical assistance and/or training during the grant term.  Such access must be in writing from the legal owner or his/her authorized agent.

• Reimbursement will not exceed the amount stated on the Grant Agreement Cover Sheet (CalRecycle 110).

• Construction of the TDA portion of any project must commence on or after the date indicated in CalRecycle’s written Notice to Proceed and be completed by April 1, 2024.

Additionally, landfill projects will not be reimbursed for use of more than 0.75 cubic yards (0.5 tons) of TDA per lineal foot of landfill gas collection or leachate injection line.


Please visit our grants website for eligible costs and additional grant specific information.

Eligibility Requirements

Eligible Applicants:

  • Business
  • Nonprofit
  • Public Agency
  • Tribal Government

Eligible applicants include:

• All California local government entities

• Special districts

• Joint Powers Authorities (JPA)

• Public school districts

• All California State agencies

• CA State University, University of CA, and CA Community Colleges

• Private, for-profit entities

• Non-profit organizations

• Qualifying Indian Tribes


Please visit our grants website for a complete description and additional grant specific information.

Important Dates

The date (and time, where applicable) by which all applications must be submitted to the grantmaker. Time listed as “00:00” equates to midnight.
The date on which the grantor expects to announce the recipient(s) of the grant.
October 2021
The length of time during which the grant money must be utilized.
NTP to April 1, 2024

Funding Details

The total projected dollar amount of the grant.
A single grant opportunity may represent one or many awards. Some grantors may know in advance the exact number of awards to be given. Others may indicate a range. Some may wish to and wait until the application period closes before determining how many awards to offer; in this case, a value of “Dependent” will display.
Grant opportunities representing multiple awards may offer awards in the same amount or in varied amounts. Some may wish to wait until the application period closes before determining per-award amounts; in this case, a value of “Dependent” will display.
Certain grants require that the recipient(s) provide a letter of intent.
Yes ( see Description for details )
Certain grants require that the recipient(s) be able to fully or partially match the grant award amount with another funding source.
The funding source allocated to fund the grant. It may be either State or Federal (or a combination of both), and be tied to a specific piece of legislation, a proposition, or a bond number.
  • State

Funding Source Notes:

The Department of Resources Recycling and Recovery (CalRecycle) receives an annual appropriation from the California Tire Recycling Management Fund to administer the California Tire Recycling Act (Senate Bill 937, Vuich, Statutes of 1990, Chapter 35) (Public Resources Code [PRC] sections 42860 et seq.)

• $350,000 is the maximum available for individual grant awards.

The manner in which the grant funding will be delivered to the awardee. Funding methods include reimbursements (where the recipient spends out-of-pocket and is reimbursed by the grantor) and advances (where the recipient spends received grant funds directly).
  • Reimbursement(s)

Funding Method Notes:

Staff proposes to conduct the review of FY 2021–22 applications using the eligibility, criteria and evaluation process applied in the FY 2020–21 cycle. Staff will perform a review of all applications to determine completeness. Complete applications will be evaluated to confirm applicant and project eligibility and determine the recommended funding amount.

How to Apply

State agencies/departments recommend you read the full grant guidelines before applying.