Compliance
BERDO (Building Emissions Reduction and Disclosure Ordinance)
Definition
Boston's building performance standard, updated in 2021, requiring commercial and multifamily buildings over 20,000 sq ft to reduce GHG emissions on a schedule toward net-zero by 2050. Buildings must meet interim emissions standards in 5-year compliance periods, with penalties for noncompliance.
Why It Matters for Your Business
BERDO is a model for building performance standards being adopted by cities nationwide. Boston's 2021 update accelerated the timeline significantly — buildings must achieve net-zero by 2050, with checkpoints in 2025, 2030, 2035, 2040, and 2045. Penalties escalate with excess emissions.
Frequently Asked Questions
What is the penalty for BERDO noncompliance?
Penalties are calculated per metric ton of CO₂e over the applicable emissions standard. The rate escalates over compliance periods. Check the Boston Inspectional Services Department for current penalty schedules.
Does BERDO apply only to Boston?
BERDO is Boston's ordinance. Other cities have enacted similar Building Performance Standards (BPS): Washington D.C. (Clean Buildings Act), Denver (Energize Denver), Seattle (Building Tune-Up ordinance), and more. The number is growing.