Overview
Final Regulations
Public Comment
Supporting Information


Overview

On May 17, 2016, the Supreme Judicial Court of Massachusetts ruled that the Massachusetts Global Warming Solutions Act (GWSA) requires MassDEP to promulgate new regulations that “impose a limit on [greenhouse gas] emissions that may be released, limit the aggregate emissions released from each group of regulated sources or categories of sources, set emission limits for each year, and set limits that decline on an annual basis” to meet the requirements of Section 3(d) of Chapter 21N of the General Laws.

On September 16, 2016, Governor Baker signed Executive Order 569 pdf format of Executive Order Climate Change Strategy
which directed the Executive Office of Energy and Environmental Affairs to coordinate and make consistent new and existing efforts to mitigate and reduce greenhouse gas emissions and to build resilience and adapt to the impacts of climate change. The Executive Order also directed MassDEP to promulgate regulations that satisfy the mandate of Section 3(d) by August 11, 2017, with the objective that these regulations ensure that the Commonwealth meets the 2020 statewide emissions limit mandated by the GWSA. 


Final Regulations

The following six regulations, promulgated on August 11, 2017, are designed to support and complement ongoing and planned activities, as detailed in the 2015 Update to the Massachusetts Clean Energy and Climate Plan for 2020 pdf format of MA Updated Clean Energy and Climate Plan for 2020
file size 2MB. For further information on MassDEP’s efforts to date, see: http://www.mass.gov/eea/agencies/massdep/air/climate/

310 CMR 7.72: Reducing Sulfur Hexafluoride Emissions from Gas-Insulated Switchgear

310 CMR 7.73: Reducing Methane Emissions from Natural Gas Distribution Mains and Services

310 CMR 7.74: Reducing CO2 Emissions From Electricity Generating Facilities 

310 CMR 7.75: Clean Energy Standard

310 CMR 60.05 Global Warming Solutions Act Requirements for Transportation

310 CMR 60.06 CO2 Emission Limits for State Fleet Passenger Vehicles


Public Comment

MassDEP held stakeholder meetings on potential new greenhouse gas regulations in early November 2016, and received pre-proposal stakeholder feedback that informed development of the proposed regulations. Public hearings on MassDEP's proposed regulations were held on February 6 and 8, 2017, and the formal comment period ended on February 24, 2017. 

Additional public comments received via email and in hard copy can be found here: 


Supporting Information

The background document and supplemental materials can be found here: