DOER Regulations

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2025 Massachusetts Building Energy Codes

There are three levels of building energy codes in Massachusetts:

Large Building Energy Reporting Policy

The Commonwealth's policy requiring disclosure of energy information for large buildings

Municipal Fossil Fuel Free Building Demonstration Program

DOER demonstration program enabling cities and towns to adopt and amend general or zoning ordinances or by-laws to require new building construction or major renovation projects to be fossil fuel-free.

Residential Conservation Services (RCS)

Regulations & Statutes governing residential energy efficiency programs in Massachusetts

MOR-EV Rebate Program

Thinking of buying an electric vehicle? Get more information about Massachusetts' rebate program here.

Appliance Energy and Water Efficiency Standards

State policy that sets energy and water efficiency standards for appliances.

Clean Energy Siting & Permitting Regulations

The Division of Clean Energy Siting and Permitting is responsible for regulations that will guide the local siting and consolidated permitting process for small clean energy projects.