Reducing GHG Emissions Under Section 3(d) of the Global Warming Solutions Act

These MassDEP regulations set specific, annually declining limits on greenhouse gas (GHG) emissions from a range of sources to meet the requirements of Section 3(d) of the Global Warming Solutions Act (GWSA).

Global Warming Solutions Act Dashboard

Learn about the progress Massachusetts is making toward its clean energy and climate protection goals.

Progress Toward Massachusetts Clean Energy & Climate Goals

Massachusetts is proof that striving for reductions in greenhouse gas emissions doesn't hinder economic progress.

Massachusetts Greenhouse Gas Emissions Reporting Program

Reporting of greenhouse gas emissions provides data that is important for developing emission reduction targets and plans, and for measuring progress toward goals.

Clean Energy Standard (310 CMR 7.75)

Consistent with the Clean Energy and Climate Plan, and its requirement that Massachusetts achieve an 80 percent reduction in GHG emissions by 2050, MassDEP is implementing a Clean Energy Standard (CES).

Electricity Generator Emissions Limits (310 CMR 7.74)

MassDEP has established a regulatory cap on GHG emissions from large power plants in the state.

How to Get Involved

Contribute your ideas to state greenhouse gas policy discussions and take steps to reduce your personal, household and community carbon footprints.

Reduce Your Carbon Footprint at Home

Ten simple steps you can take to lower your personal and household emissions of carbon dioxide, the leading contributor to climate change.

United States Climate Alliance

A voluntary coalition of states - including Massachusetts - committed to achieving reductions in greenhouse gas (GHG) emissions, consistent with the goals of the Paris Agreement.