Guide Electricity Generator Emissions Limits (310 CMR 7.74)

This regulation establishes a declining limit on carbon dioxide (CO2) emissions from large power plants in Massachusetts. The limit ensures that state programs, including the Clean Energy Standard, reduce greenhouse gas emissions.

Current Regulation

310 CMR 7.74: Reducing CO2 Emissions from Electricity Generating Units was finalized in August 2017 and amended in both December 2017 and August 2018.

See 310 CMR 7.00: Air Pollution Control, which includes the current Electricity Generating Units regulation.

Additional Resources for Current Regulation

Massachusetts Carbon Allowance Registry

The Carbon Allowance Registry tracks allowances for large power plants in Massachusetts for purposes of satisfying the requirements of 310 CMR 7.74: Reducing CO2 Emissions from Electricity Generating Facilities.

Administered by MassDEP, the Allowance Registry enables Designated Representatives to register their facilities, receive or transfer allowances, and manage their allowance holdings.

Before accessing the Allowance Registry, facilities must first mail notarized Certifications of Representation (available for download from Additional Resources below) to:

MassDEP Bureau of Air & Waste
One Winter Street, 7th Floor
Boston, MA 02108


Attn: Will Space

See Key Actions below for access to the Allowance Registry and a training video on how to use the system.

Related reporting and compliance forms are available in Available Resources below.

Additional Resources for Massachusetts Carbon Allowance Registry

Rulemaking Documents

310 CMR 7.74 was finalized in August 2017. Combined rulemaking documents for 310 CMR 7.74 and 7.75 are available here.

Executive Office of Energy and Environmental Affairs (EEA) and Department of Environmental Protection (MassDEP) amendments to 310 CMR 7.74 developed in response to stakeholder input on the design of carbon dioxide (CO2) allowance auctions, allowance banking, and compliance flexibility took effect in August 2018.

Final Amendments

Response to Comment

Technical Support Document

Notice of Public Comment Period & Hearing

310 CMR 7.74 was previously amended in December 2017.

Final Amendments

Technical Support Document

Response to Comments

Stakeholder Input

In fall 2017, MassDEP and the Executive Office of Energy & Environmental Affairs (EEA) solicited stakeholder comment on auction design. MassDEP and EEA considered these comments in developing procedures for allowance auctions that will begin in 2019.

Stakeholder Document: Allowance Auctions

Stakeholder Meeting Presentation: Allowance Auction Design

Initial Stakeholder Comments: Allowance Auction Design

Final Stakeholder Comments: Allowance Auction Design

Supplemental Information

Feedback

Did you find what you were looking for on this webpage? * required
We use your feedback to help us improve this site but we are not able to respond directly. Please do not include personal or contact information. If you need a response, please locate the contact information elsewhere on this page or in the footer.
We use your feedback to help us improve this site but we are not able to respond directly. Please do not include personal or contact information. If you need a response, please locate the contact information elsewhere on this page or in the footer.

If you need to report child abuse, any other kind of abuse, or need urgent assistance, please click here.

Feedback