SOUTH DAKOTA Department of
Environment & Natural Resources

Protecting South Dakota's Tomorrow...Today!
Joe Foss Building
523 E Capitol Ave
Pierre, SD 57501-3182
Contact Us  Field Offices

Air Quality



South Dakota Diesel Emission Reduction Act (DERA) & Volkswagen School Bus, Shuttle Bus, and Transit Bus Rebate Programs


DENR Announces Round Twelve

The South Dakota Department of Environment and Natural Resources (DENR) announces Round 12 of funding under the South Dakota Clean Diesel Grant Program. There is approximately $473,499 of Diesel Emissions Reduction Act (DERA) funds, $315,666 of VW category 10 DERA funds, and $90,278 of VW category 2 bus funds available for the projects.

The program provides rebates to assist in purchasing new buses to replace old, high-emitting diesel buses. The primary goals of the programs are to reduce your school children’s exposure to both fine particulate and smog-forming pollution and to facilitate the improvement and protection of the ambient air quality throughout South Dakota.

The South Dakota programs will provide rebates to help public schools, non-public schools, state special schools, other educational programs, shuttle or transit system providers, and school bus contractors purchase new buses to replace old, high-emitting, diesel buses. Total rebate per replacement bus will be up to 25% of the purchase price of a new bus with an engine certified to EPA emission standards, 35% of the purchase price of a new bus with an engine certified to meet CARB’s Low-NOx standards, or 45% of the purchase price of a zero tailpipe emissions bus. DENR intends to award funds to as many eligible applicants throughout the state as possible. 

 Tentative Schedule for October 2019 - September 2020  




November 4, 2019

Call for Round Twelve Projects Opens

December 13, 2019

Call for Round Twelve Projects Deadline


December 16, 2019 - January 10, 2020


Evaluate & Select Round Twelve Projects

January 14, 2020

Round Twelve Selected Projects List. Email rebate agreements to selected applicants.

January 2020 -

April 2020

Recipients will order buses and email DENR copies of purchase orders.

September 2020


Deadline for all invoices and paperwork to be submitted to DENR for Round Twelve


 FORMS (Note: If the Word document does not open for you, try the save option instead.)

Additional information about the Program is available by emailing the Program Administrator at or calling the Program Hotline at 1-800-GET-DENR (1-800-438-3367).


Round Twelve rebate applications are due by 5:00 PM on December 13, 2019


Email applications to or mail applications to:

     Bus Rebate Programs

     SD DENR AQ Program

     523 E Capitol

     Pierre, SD  57501

Information on Oct 2009 - Sept 2012 Grant Period

Information on Oct 2012 - Sept 2014 Grant Period

Information on Oct 2014 - Sept 2017 Grant Period

Information on Oct 2017 - Dec 2019 Grant Period