Diesel Retrofit Projects

Listed below are some of the Maryland Department of the Environment’s diesel retrofit projects. Please click on a project title for additional information, where available.

U.S. EPA Grant to Maryland Transportation Authority (MTA)

U.S. EPA Air Toxics Grant for Diesel Retrofits for the City of Baltimore

  • Baltimore City Retrofit Demonstration Project
  • Baltimore City Trash Haulers
  • Baltimore City Dump Trucks
  • Maryland Transit Administration (MTA) Transit Buses

Dominion Resources SEP School Bus Retrofit Grant

  • Anne Arundel County Public Schools
  • Montgomery County Public Schools
  • Prince George’s County Schools

U.S. EPA Sensitive Population Grant for the City of Baltimore, the City of Annapolis, the Maryland Department of the Environment, and Montgomery County

  • City Of Baltimore
  • City Of Annapolis
  • Maryland Department of the Environment (MDE)
  • Montgomery County

Additional Grant Projects

  • Clean Cities (U.S. DOE) Grant to Maryland Transportation Authority (MTA)
  • National Clean Diesel Campaign Project
  • State of Maryland Grants:
    • Howard County Transit Bus Retrofit Project
    • Quick Charge Electric Vehicle Chargers for the City of Baltimore
    • Fuel Maker for the City of Baltimore
    • Quick Charge Electric Vehicle Chargers for Johns Hopkins University
    • Diesel Retrofits for Johns Hopkins University


For additional information, call Tim Shepherd at (410)537-3270 or email tim.shepherd@maryland.gov.


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