The Texas Commission on Environmental Quality (TCEQ) administers the Emissions Reduction Incentive Grants (ERIG) Program and Rebate Grants Program as part of the Texas Emissions Reduction Plan (TERP). The ERIG Program provides grants for various types of clean air projects to improve air quality in the state's nonattainment areas and other affected counties. Eligible projects include those that involve replacement, retrofit, repower, or lease or purchase of new heavy-duty vehicles; alternative fuel dispensing infrastructure; idle reduction and electrification infrastructure; and alternative fuel use. The Rebate Grants Program provides grants to upgrade or replace diesel heavy-duty vehicles and non-road equipment. Qualifying projects must reduce emissions of nitrogen oxides or other pollutants by at least 25% as compared to baseline levels and must meet operational and fuel usage requirements. For more information, including eligibility and the application form, see the TCEQ TERP website. (Reference Texas Statutes Health and Safety Code 386 and Texas Administrative Code 114.620-114.629)