Building Emissions Reduction and Disclosure
Boston’s Building Emissions Reduction and Disclosure Ordinance (BERDO) sets requirements for large buildings to reduce their greenhouse gas emissions. The goal is to reduce emissions gradually to net zero by 2050.
For reporting questions:
Email or call Monday through Friday, from 9 a.m. - 5 p.m.
Find support upgrading your building:
- May 15, 2023 - Deadline for reporting 2022 data.
How to Report to BERDO in 2022
There are three main parts to reporting in 2022:
- Energy Star Portfolio Manager: Energy Star Portfolio Manager is used for reporting key building characteristics and energy and water usage.
- 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.
- 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.
Updated guidance on how to report in 2023 will be released in March 2023.
Reporting Instructions, Guides, and FormsInstructions, Guides, and Forms
Regulations. Policies, and GuidanceRegulations, Policies, and Guidance
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.
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.
Upcoming eventsUpcoming events
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 -|
|College / University||10.2||5.3||3.8||2.5||1.2||0|
|Food Sales and Service||17.4||10.9||8.0||5.4||2.7||0|
|Manufacturing / Industrial||23.9||15.3||10.9||6.7||3.2||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.
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.
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.