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Provides public access to Chapter 91 files for review.
Conduct a file review and find information on facilities, sites, and projects in the central region.
Conduct a file review and find information on facilities, sites, and projects in the northeast region.
Conduct a file review and find information on facilities, sites, and projects in the southeast region
Conduct a file review and find information on facilities, sites, and projects in the western region.
This office houses MassDEP's Division of Environmental Analysis and the Air Assessment Branch
Find the MassDEP regional office that serves your city/town
MassDEP Organization and Notice of Non-Discrimination
Access MassDEP online services and search available databases
Find contact information for MassDEP's waste site cleanup program around the state.
eDEP contacts who can assist with your questions on eDEP forms, program requirements, and general technical issues.
For certain types of facilities, activities, equipment and products, MassDEP has replaced traditional permitting with periodic reporting and compliance certification.
Guidance and contacts on the MassDEP permitting process.
Learn more and contact the Office of Research and Standards.

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