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 December 2017.

Electricity Sector Regulations Fact Sheet

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

Stakeholder Input

In fall 2017, MassDEP and the Executive Office of Energy & Environmental Affairs (EEA) solicited stakeholder comment on auction design. MassDEP and EEA will consider these comments as they develop procedures in preparation 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

Rulemaking Documents

310 CMR 7.74: Reducing CO2 Emissions from Electricity Generating Units was finalized in August 2017. Combined rulemaking documents for 310 CMR 7.74 and 7.75 are available here.

Response to Comments Appendix B (MS Excel)

310 CMR 7.74: Reducing CO2 Emissions from Electricity Generating Units was amended in December 2017.

Final Amendments

Technical Support Document

Response to Comments

Supplemental Information

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