Clean Diesel Program

Fuel Pump Handles

Arizona State Clean Diesel Program

The 20 million diesel engines operating nationwide today provide more power and fuel efficiency than those that burn gasoline or natural gas. However, these engines emit more than 300,000 tons of particulate matter (PM) and more than 6 million tons of nitrogen oxides (NOx) into the air annually. These pollutants contribute to public health problems such as asthma, lung cancer, and many more serious cardiac and respiratory diseases.

Diesel engines manufactured today are cleaner than ever before, thanks to Environmental Protection Agency (EPA) regulations. Since diesel engines can operate for more than 30 years, millions of older higher polluting engines are still in use today. Thus the Diesel Emissions Reduction Program or “DERA” was created under the Energy Policy Act of 2005. The act gave the EPA the ability to promote diesel emission reductions by giving states the ability to provide grant monies. These grants are used to provide funding for local fleets to replace, repower, or retrofit older higher emitting diesel engines with newer diesels or newer vehicles that use alternative fuels.

State Clean Diesel Grant Awards

Awards for Federal Fiscal Year 2016

Maricopa County Equipment Services Department

Deer Valley Unified School District #97


Awards for Federal Fiscal Year 2017



Name of Document
Type Date Published
Active or Closed
Vendor Registration Instructions
PDF 08 August 2017
DERA Informational PowerPoint
PDF 26 July 2017
FY17 State Program Information Guide
PDF 26 July 2017 Active
FY17 Sub-Grantee Letter
PDF 26 July 2017 Closed
FY17 Sub-Grantee Notice of Intent to Participate
PDF 26 July 2017 Closed
FY17 State Clean Diesel Funding Application
DOCX 26 July 2017 Closed

Contact Information

Maricopa County Air Quality, 1001 N. Central Ave., Phoenix, AZ 85004

Grant Program Administrator:
   Larz Garcia