Draft Phase 3 BEUDO Regulations Released - Comment Period Open

As part of Cambridge’s work to cut carbon emissions from large buildings and meet the City’s 2050 carbon-neutral goal, the next set of Building Energy Use Disclosure Ordinance (BEUDO) regulations is now available for public review. Phase 3 focuses on several areas that will guide how building owners and managers comply with the ordinance.


What’s included in the draft Phase 3 regulations:


Campus Reporting Option: A pathway for organizations with five or more BEUDO-covered buildings to report energy use and emissions as a single campus, allowing for emissions to be considered in aggregate rather than individually.


BEUDO Review Board Procedures: Proposed rules describing how the Review Board will operate and make decisions, with a focus on transparency and consistency.


Hardship and Deferral Requests: Criteria and processes for property owners or managers who face significant challenges and may need extra time meeting BEUDO requirements.


The draft regulations are now open for public comment. The City encourages all building owners, residents, and interested stakeholders to review the documents and share their feedback.


Visit the City's BEUDO page to read the draft regulations and learn how to submit comments. Public comments will be accepted through Jan. 23. City staff will be providing an overview of these proposed regulations in an upcoming webinar (see below).


Forms Due Dec. 31, 2025, for BEUDO-Covered Properties




  • The Deadline Extension Form for owners with multiple building parcels or multi-use buildings, or those seeking a Campus compliance structure, who may need additional time.



Upcoming Webinar:

1 p.m. on Jan. 12, 2026


The Office of Sustainability will host a public webinar at 1 p.m. on Jan. 12, 2026.


BEUDO staff will provide an overview of the Draft Phase 3 Regulations.


Register here.


For more information, visit camb.ma/BEUDO.



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