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Diesel Emissions Reduction Act (DERA) Grants

Note: This grant program is not currently open for applications


August 30, 2013 –

An amendmed sub-award between the DNR – Air Quality Bureau and the City of Muscatine has provided $194,159.08 in funds to the City of Muscatine to complete emissions control retrofits on city maintenance vehicles and for complete vehicle replacement of 2 transit buses. Funding for the project has been provided by the U.S. Environmental Protection Agency (EPA)’s Diesel Emissions Reduction Act (DERA).

The sub-grant award is for full reimbursement of diesel emissions reduction strategies and vehicle replacement, specifically for the purchase and installation of the following.

  • Pre-Testing and Preparation ($12,266.55)
    • Allocated for the pre-testing and any preparation needed to get vehicles ready for retrofit installation
    • Completed in April 2013
  • Diesel oxidation catalysts (DOCs) and Closed Crankcase Ventilation (CCVs) ($25,904.07)
    • 9 DOCs and 9 CCVs – installed on 9 city maintenance vehicles
    • Installation to be completed and reported by September 25, 2013
  • Vehicle Replacement ($155,988.46)
    • 2 new transit buses to replace 2, 2006 Navistar transit buses
    • Purchase of new buses and disablement of old to be completed and reported by April 15, 2014

Retrofit technologies are products that may be added to further reduce emissions from certified engine configurations. Additional information on each technology is available at
  • Diesel oxidation catalysts (DOCs) reduce the amount of pollution emitted out of the vehicle exhaust system by causing a catalytic reaction that then breaks down the pollutants.
  • Closed Crankcase Ventilation (CCVs) systems capture and redirect emissions back to the intake system for combustion instead of emitting them into the air.

Sub-Award History

  • In November 2012, the Environmental Protection Commission (EPC) approved the original sub-grant award in the amount of $123,564.00 to the City of Muscatine to purchase & install 8 Diesel Particulate Filters (DPFs) and Back Pressure Monitors, and 1 Regeneration Panel. The City of Muscatine was also to purchase 5 Diesel Oxidation Catalysts (DOCs) and Closed Crankcase Ventilation (CCVs) systems. It was anticipated that the project would be completed no later than September 30, 2013.
  • Amendment 1, dated April 12, 2013, was entered into for the purpose of increasing the number of retrofits (modifying the tasks) without any time or monetary extensions necessary.
  • In June 2013, the DNR was informed by EPA of funds that would be available for additional diesel emission reduction projects. Amendment 2, in the amount of $194,159.08, was approved by the EPC on August 20, 2013 and replaces the original sub-grant award’s Statement of Work, Task Milestone Dates and Budget to reflect the current circumstances.