Last updated:

Building Emissions Reduction and Disclosure

Boston’s Building Emissions Reduction and Disclosure Ordinance (BERDO) sets requirements for large buildings to reduce their energy use. The goal is to reduce emissions gradually to net zero by 2050.

Comment on draft regulations

Written comments on the Phase II.a draft regulations will be accepted until 12:00 p.m. on Friday, December 9, 2022. You can view draft regulations and policies online. Comments can be emailed to apcc@boston.gov. More information on the process can be found on our BERDO regulations website.


Buildings account for nearly 70% of greenhouse gas emissions in Boston. The 2021 amendment to BERDO gives the City authority to set emissions standards for large existing buildings. The emissions standards will decrease over time, with all buildings achieving net zero emissions by 2050. To learn more, read the full text of the legislation
  • For reporting questions:

    Email or call Monday through Friday, from 9 a.m. - 5 p.m.

  • Find support upgrading your building:

    Access Resource Hub

  • Reporting Deadlines
    • June 15, 2022 - Initial reporting and verification deadline
    • December 15, 2022 - Reporting and verification deadline with six-month extension

How to Report to BERDO in 2022

There are three main parts to reporting in 2022: 

  1. Energy Star Portfolio Manager: Energy Star Portfolio Manager is used for reporting key building characteristics and energy and water usage. 
  2. BERDO Reporting Form: A new requirement in 2022, this form captures data required for BERDO 2.0 that isn’t included in Energy Star Portfolio Manager. 
  3. Third-Party Data Verification: A new requirement in 2022, third-party verification of buildings must be completed by a qualified energy professional.

Please review the detailed how to report guide before beginning reporting. 

 

Reporting DeaDlines

  • June 15, 2022 - Deadline for reporting and verification without extension.
  • December 15, 2022 - Deadline for reporting and verification with extension.

In 2022, all building owners are entitled to apply for a one-time, six-month extension. Extension requests must be made through the BERDO Reporting Form

Covered buildings

BERDO applies to the following buildings:

  • Non-residential buildings that are 20,000 square feet or larger.
  • Residential buildings that have 15 or more units.
  • Any parcel with multiple buildings that sum to at least 20,000 square feet or 15 units.
2022 BERDO Covered Buildings List

Buildings between 20,000 and 35,000 square feet or residential buildings with 15 to 35 units will need to begin reporting their energy use in 2022. They will not be subject to the emissions standards until 2031, reporting for 2030 emissions.

Complying with emissions standards

Emissions standards are reported in kilograms of carbon dioxide equivalent per square foot per year (kgCO2e/SF/yr). Mixed use buildings may adopt a blended emissions standard based on the area of each use.

BUILDING USE 2025- 2029 2030 - 2034 2035 - 2039 2040- 2044 2045-2049 2050 -
Assembly 7.8 4.6 3.3 2.1 1.1 0
College / University 10.2 5.3 3.8 2.5 1.2 0
Education 3.9 2.4 1.8 1.2 0.6 0
Food Sales and Service 17.4 10.9 8.0 5.4 2.7 0
Healthcare 15.4 10.0 7.4 4.9 2.4 0
Lodging 5.8 3.7 2.7 1.8 0.9 0
Manufacturing / Industrial 23.9 15.3 10.9 6.7 3.2 0
Multifamily Housing 4.1 2.4 1.8 1.1 0.6 0
Office 5.3 3.2 2.4 1.6 0.8 0
Retail  7.1 3.4 2.4 1.5 0.7 0
Services 7.5 4.5 3.3 2.2 1.1 0
Storage 5.4 2.8 1.8 1.0 0.4 0
Technology / Science 19.2 11.1 7.8 5.1 2.5 0

Building owners may develop and request approval for:

  • Individual Compliance Schedules
  • Request a Hardship Compliance Plans

The Ordinance outlines the basic requirements for these options and both must be approved by the Review Board. Upcoming regulations processes will identify the detailed requirements for each of these pathways. Learn more about regulations development and how you can engage here. 

Retrofit Resource Hub

Want to make healthy, climate resilient, and low-carbon building improvements? We have information to help building owners, tenants, and contractors.

Retrofit Resource Hub

Data Disclosure

The Environment Department is publishing an initial data disclosure to fulfill the requirement to disclose 2021 reported data by December 1, 2022. The data reported at this time is limited because all building owners are entitled to a one-time extension until December 15, 2022. The Environment Department will disclose more detailed data following data quality review of reports completed by December 15, 2022. 

2022 Initial Data Disclosure

SEARCH Prior Data Disclosures

Future data disclosures will report on metrics related to environmental justice and the equitable implementation of BERDO. Staff, in conjunction with input from community members, are identifying appropriate metrics to track and report on over time. Initial research has been conducted to evaluate options for the development of environmental justice metrics for BERDO and has been summarized in a memo.

BERDO Equity Metrics Memo

Back to top