Program Overview & Applicability

Regulations & Protocols

Facility Reporting: Massachusetts Greenhouse Gas (GHG) Registry

Retail Seller of Electricity Reporting

GHG Emissions Verification

GHG Reporting Program Helpline

To address greenhouse gas emissions reporting questions most efficiently, MassDEP is requesting that facilities email Please include a short summary of your question and a telephone number where we can contact you. You may also call 213-213-1240 to speak with Helpline staff directly. Helpline hours are Monday through Friday from 12:00 to 5:00 p.m. Eastern Time. We will reply to all emails and voice messages within two business days.

For additional information, please contact Will Space (