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ARTICLE · 17 JUNE 2025

Massachusetts Statewide Large Building Energy Reporting Rules Now In Effect

The Massachusetts Department of Energy Resources (DOER) has finalized the regulations implementing the Commonwealth's Large Building Energy Reporting (LBER) policy...

United StatesEnergy and Natural Resources

The Massachusetts Department of Energy Resources (DOER) has finalized the regulations implementing the Commonwealth's Large Building Energy Reporting (LBER) policy, codified at M.G.L. c. 25A, § 20 and detailed in 225 CMR 27.00. LBER was enacted in the 2022 Act Driving Clean Energy and Offshore Wind and aims to increase transparency in energy usage.

The new regulations set the first statewide energy usage reporting deadline for large buildings, which is coming up on June 30, 2025. Building on our previous updates on LBER, here's what the regulated community needs to know as the deadline approaches.

Who Must Report

The regulations define a building as a "an energy consuming structure located within a Parcel or a single, continuous energy-consuming structure that spans multiple Parcels," and specify that a large building has a "Gross Floor Area equal to or greater than 20,000 square feet." This means the policy applies to a broad swath of the built

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