Congestion Mitigation Air Quality (CMAQ)

CMAQ funding is given to states by the Federal Hwy Administration to mitigate air quality issues and congestion. These funds are directed through the metropolitan planning organizations for projects in non-attainment/maintenance areas. The following is a link to information about Georgia's non-attainment areas:

For more information on CMAQ, please visit

Diesel Emissions Reduction Act (DERA) State Funds

The State DERA funding is part of the National Clean Diesel Campaign.  Congress passed DERA and tasked EPA to oversee the implementation.  The funding allocated to DERA is split between EPA and the States, with 30% of the overall funding going directly to the States. Georgia has used this funding to reduced emissions in our school bus fleets.  The state offers grant funding to school systems to install emissions control devices or replace buses early.

View Past Recipients of DERA Funding

For more information on DERA, please visit

Supplemental Environmental Project

A supplemental environmental project (SEP) is an environmentally beneficial project in which a violator voluntarily agrees to perform as part of a settlement of an enforcement action with the U.S. Environmental Protection Agency (EPA) or the Georgia Environmental Protection Division (EPD). In return, EPA/EPD agrees to reduce the monetary penalty that would otherwise apply as a result of the violation(s).

For more information on SEPs, please visit