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 The Delaware Heavy-Duty Vehicle Rebate Program

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The Delaware Heavy-Duty Vehicle Rebate Program

        Vehicles purchased between July 15, 2015 and June 30, 2018         


The purpose of the Delaware Heavy-Duty Vehicle Rebate Program is to assist in offsetting the initial costs of purchasing a dedicated compressed natural gas (CNG) heavy duty class 7 or 8 vehicle (GVW >26,000 pounds). For a list of vehicles available please visit DOE Heavy Duty Vehicle Search tool. (Please note that vehicles listed in this search are various classes of vehicles. It will be the responsibility of the applicant to ensure that the vehicle purchased meets the requirements of the rebate program.)

The heavy duty truck rebate program is different from the light and mid-duty vehicle programs. Applicants to this program will be required to submit proof of ordering the class 7 or 8 vehicle, as well as proof of payment. Once the heavy duty truck is under the ownership of the motor carrier the rebate will be released from the State of Delaware. Please give attention to the forms; any errors or illegible forms will be returned to the point of contact.

Delaware based fleets and businesses that operate class 7 and 8 vehicles are eligible and encouraged to apply. Propane or electric buses are not eligible for this program. Fleets must work through the dealer or dealer’s representative to be eligible for this program. Please see the overview for additional details.

Apply for a Rebate

Rebates of $20,000 are available for new qualifying heavy duty dedicated CNG trucks (class 7 or 8). This program will accept applications for rebates from July 15, 2015  through June 30, 2018, or until funding has expired.

Download an Application Form  and the supplemental rebate application documents

Below is a description of the application process for this program. For a more in-depth explanation of definitions and the process, please click here

 Applicant Eligibility

This program is open to Delaware commercial entities, non-profits, individuals or businesses located in or who have in-state affiliates in the State of Delaware. Primary Points of Contacts are responsible for ensuring that all paperwork is filled out correctly.

Motor carriers (fleets) are limited to five awards under this rebate program. Heavy duty trucks that have been previously registered (in any state) or paid for by the Motor Carrier (other than a vehicle down payment in order to receive the rebate) are ineligible. Pre-owned electric trucks are not eligible for this grant program. Passenger-carrying (public transit, etc.) vehicles are not eligible. 


Rebate Reimbursement Package

After DEC sends the rebate Commitment Letter to the PPC, and the project has been completed, the PPC must submit the Reimbursement Package. As with the Application Package, the Rebate Reimbursement Forms are designed to be filled out electronically. DEC strongly recommends utilizing these enhancements by filling out the forms electronically before printing and signing them. Note: Any illegible documents will be returned, unprocessed, to the PPC.

Reimbursement forms contain a checklist listing all of the documents that need to be submitted as part of the completion package.

NOTE: Any completion package that is found to be incomplete or is missing supporting documentation will be returned to the PPC without being processed. 


  • Awardees agree to use rebate funds only for the purposes and subject to the conditions and agreements stated in the Program Guidelines.
  • DEC has the exclusive authority to determine whether funds will be or were expended in compliance with the purposes, conditions and agreements set forth under the Program Guidelines.
  • Upon determination and notice by DEC that awarded funds will not be or were not expended in accordance with the Program Guidelines, DEC shall have no obligation to deliver any funds to awardees pursuant to any agreement, and awardees shall promptly return to DEC any awarded funds that may have already been delivered to awardees.

Taxability of Vehicle Rebates

In order for applicants to receive a rebate, the applicant MUST submit a W-9 form ONLINE. Any W-9 forms submitted with an application will be shredded immediately. The link to the State of Delaware W-9 online page is . Applications will not be processed without this documentation.

Rebates may be considered taxable income by the IRS. Please consult your tax professional. 

Frequently Asked Questions

For a list of FAQs, please click here. If you have additional questions please email

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