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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.
eUST 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 6/16/2016. If you have made changes in the DMS Database since the last update, you may not be able to proceed with certain applications. Please contact the UST Program if you have any questions.

New Owner Authorization Form
Posted: 12/23/2015

A new Owner Authorization for Reimbursement Applications (Claims) form has been added to replace the previous form.  This new form allows Owners to grant authorization for an Authorized Claimant to submit one or all future reimbursement applications for a specified Eligibility number. To access the form, please visit the UST Program Forms webpage at

** New Fee Schedule **
Posted: 9/1/2015

The Appendix 3 Reimbursement Fee Schedule has been revised effective for work performed on or after September 1, 2015.   Please note that several prior task codes have either been combined with other task codes or eliminated.  To avoid delays in claim processing and costs potentially denied due to coding errors, please verify the work performed against the new task code list and workbook guidance section when preparing an Application for Reimbursement before uploading any cost data (MDU process or manual entry).

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