Regulations for Source Registration

310 CMR 7.12 is the MassDEP regulation that governs who must file a Source Registration and when. You can find section 7.12 Source Registration within the larger chapter 310 CMR 7 through the link below - you will need to search the large PDF file for EXACTLY this text "7.12: U Source Registration".
Link to regulations 310 CMR 7: PDF  3.7 MB 

Guidance for Source Registration

Guidance for Source Registration can be found in the at the links below. Questions should be directed to the Source Registration Help Desk at air.quality@state.ma.us .

Tips Answers to Questions from the SR Help Desk

Instructions for the Source Registration Forms

Read this First: What you Must Know to File

Who Must File Source Registration