December 2016 Update:
The eDEP Source Registration (SR) Package is currently unavailable while we convert to webforms. Facilities that are required to submit a 2016 SR Package (due in 2017) will be mailed a reminder letter when the forms are available for use.
Questions and answers about who is required to file Source Registrations
When is your facility due to file? Filing deadlines for 2016 are listed. You can download a filing schedule for all Source Registration filers.
Read This First: What every filer must know, quick start instructions for eDEP, tips and guidance from the Help Desk, what's new for 2016, complete line-by-line instructions for all Source Registration forms. All filers should browse the Q&A.
A secure site for submitting environmental permits, transmittals, certifications, and reports electronically to MassDEP.
Valid Source Classification Codes (SCC) list. Link to EPA Emissions Factors and NAICS codes. The SCC list is updated for 2015.
This page provides a link to 310 CMR 7.12, the regulations that set the criteria and schedules for filing of Source Registrations.