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Underground Storage Tank Program (UST)
The Official Website of the Massachusetts Department of Revenue   

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Getting Started in eUST
Register your business or service company and create an account to use eUST.
UST Overview Video Introduction to the UST Program's Online Application Filing System

Welcome to eUST! If you are a registered user and this is your first time logging in, we recommend that
you take a look at the tutorial videos once inside. These are located under the "Help Videos" tab:
  • "SuperUser Admin Functions" will guide you through how to update your organization's profile,
    create new users, and assign rights to an Authorized User.
  • "Reimbursement Applications" will walk you through preparing an Application for
  • "COC Applications" will guide you through completing a Certificate Of Compliance (COC) or a
    COC Renewal Application
If you are not a registered user, please select the Register link above and you will be redirected to a page
with instructions on becoming an eUST user.
eUST Announcements
NOTE: The UST information contained in eUST has been updated from the MassDEP DMS database as of 1/19/2023. If you have made changes in the DMS Database since the last update, you may not be able to proceed with certain applications. if you have any questions, please contact the UST Program at 617-626-2600.

UST Program Fax Number
Posted: 8/24/2022

The general fax number for the UST Program is 617-626-3121.

Acceptable e-signatures
Posted: 4/7/2022

DOR has issued a written directive for acceptable forms of electronic signatures.  In general, DOR needs to verify that a document being sent electronically is coming directly from the signee of the document.  The policy can be found on the UST Claims, Updates, Reports, Regulations and Policies webpage. Please contact someone on the UST Program Staff if you have questions or need further assistance. 

Availability of UST Program Staff
Posted: 3/18/2020

Due to the COVID-19 health emergency, all DOR UST Program Staff are working remotely.  All staff will be checking voicemail periodically and are available by email.   These limitations in communications may slightly delay our response.  We appreciate your patience.

Also note that the fax number is temporarily unmanned. Please upload documents through eUST or email them directly to the adjuster working your claim as appropriate.

Finally, the DOR mail room is only open to receive courier packages  (FedEx, UPS, etc) on Wednesdays and Fridays from 9am-3pm.   Note that DOR UST Program staff is not in the office to be able to review or process any mailed or couriered packages. 

New Feature
Posted: 3/13/2019

The Board Vote Results and Monthly Updates reports can now be viewed in eUST. Log into your eUST Homepage and under the box for To Do for your Companyclick on the link “ Search Board Vote Reports”.

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