Who Must File Source Registration? 

Questions and answers about who is required to file Source Registrations.

Source Registration Filing Schedules & Deadlines

NEW! Due to intermittent technical issues with eDEP, if your SR package was due on April 15, 2014, MassDEP is extending your facility's due date to April 29, 2014. We apologize for the inconvenience and appreciate your patience. (Updated 4/17/14)

When is your facility due to file? Filing deadlines for 2014 are listed. You can download a filing schedule for all Source Registration filers. 

How to File: Tips, Factsheets, Instructions & Training

Read this first: What every filer must know. Quick start instructions for eDEP. Tips and guidance from the Help Desk. Complete line-by-line instructions for all Source Registration forms. Computer-based training. All filers should browse the Q&A.

eDEP Online Filing

A secure site for submitting environmental permits, transmittals, certifications, and reports electronically to MassDEP.

SCCs, Emission Factors & NAICS Codes

Valid Source Classification Codes (SCC) list. Link to EPA Emissions Factors and NAICS codes. The SCC list is updated for 2012 with minor changes from 2011.

Regulations & Guidance for Source Registration

This page provides a link to 310 CMR 7.12, the regulations that set the criteria and schedules for filing of Source Registrations.

Source Registration Contacts & Help Desk

Phone numbers and e-mail for the Source Registration Help Desk and MassDEP Regional Office Data Managers(for changing facility names, ownership, and closures).