Boston BERDO Compliance Guide: Deadlines, Penalties, and What Building Owners Must Do

Boston's Building Emissions Reduction and Disclosure Ordinance, known as BERDO, covers every large building in the city. If you own a non-residential building 20,000 square feet or larger, or a residential building with 15 or more units, you're in scope. The first emissions compliance deadlines hit in 2025, and the fines for non-compliance go up to $1,000 per day.

This isn't a future problem. It's happening now.

What Is BERDO?

BERDO was originally passed in 2013 as a reporting ordinance. In 2021, the city overhauled it with BERDO 2.0, adding binding emissions limits that tighten every five years. The goal is net-zero emissions for all covered buildings by 2050.

The ordinance has two parts. First, annual energy and water reporting. Second, actual emissions performance standards that your building must meet or face daily fines. Reporting is the easy part. Meeting the emissions caps is where the real work starts.

Who's Covered?

Two thresholds matter. For non-residential buildings, the cutoff is 20,000 square feet of gross floor area. For residential buildings, it's 15 or more units. If your building or campus hits either threshold, you're covered.

That includes office buildings, multifamily housing, hospitals, universities, hotels, and mixed-use properties. If you own a condo building with 15 units, the building as a whole is covered even though no individual unit comes close to 20,000 square feet.

Exemptions

There are limited exemptions for:

• City-owned buildings (covered under a separate municipal program)
• Buildings that have received a hardship exemption from the BERDO Review Board
• Buildings undergoing major renovation (temporary deferral only)

The hardship exemption exists, but the bar is high. You need to demonstrate genuine financial hardship, not just inconvenience. Don't count on it.

The Compliance Timeline

BERDO phases in emissions standards based on building size. The schedule gets progressively tighter until every covered building reaches net zero.

2025: Large Buildings Start

Non-residential buildings 35,000 square feet and larger, and residential buildings with 35 or more units, must meet their first emissions limits starting in 2025. These are the buildings that had the most time to prepare, and the city expects them to be ready.

2030: Smaller Buildings Join

Non-residential buildings between 20,000 and 35,000 square feet, and residential buildings with 15 to 34 units, begin emissions compliance in 2030. If you own a building in this range, you have a few years, but don't wait. The limits tighten every five years, and the capital improvements needed don't happen overnight.

Every Five Years: Limits Get Tighter

Emissions limits reset every five years: 2025, 2030, 2035, 2040, 2045, 2050. Each period is stricter than the last. The building that barely passes today will almost certainly fail in the next period. Plan for the next limit, not just the current one.

How the Penalties Work

BERDO has two separate penalty tracks: one for reporting failures and one for emissions violations. Both are daily fines that accumulate fast.

Reporting Penalties

Failing to submit your annual energy and water report carries fines of $150 to $300 per day, depending on building size. A six-month delay on a large building costs $27,000 to $54,000. For a report that takes a few hours to complete.

Emissions Penalties

Buildings that exceed their emissions limits face fines of $300 to $1,000 per day, also scaled by building size or unit count. Over a full year, that's $109,500 to $365,000. These penalties apply every day your building is out of compliance.

Inaccurate Reporting

Submitting false or inaccurate data carries a separate penalty of $1,000 to $5,000 per violation as determined by the BERDO Review Board. It's a smaller fine, but it triggers additional scrutiny of your building.

Alternative Compliance Payments

If you can't meet your emissions limit, you can make an alternative compliance payment (ACP) of $234 per metric ton of CO2e over your cap. It's legal, but it adds up quickly. A building that's 200 tons over its limit would owe $46,800 per year in ACPs. And the ACP rate will increase over time as limits get stricter.

Annual Reporting Requirements

Every covered building must report energy and water usage by May 15th each year. The report covers the previous calendar year. Your May 2026 filing covers 2025 data.

You report through ENERGY STAR Portfolio Manager and submit to the city's online portal. The city also requires third-party verification of your data every five years (first due in 2026 for the largest buildings, 2031 for the next tier).

Boston publishes this data publicly. Tenants, buyers, and lenders can see how your building performs. A bad score isn't just a compliance issue. It's a market issue.

What You Should Do Right Now

1. Know Your Emissions

Pull your latest benchmarking data and calculate your building's greenhouse gas emissions per square foot. Compare it to the BERDO emissions standard for your building type and compliance period. Our free compliance checker can do this in seconds.

2. File Your Annual Report

If you haven't filed for 2025, do it now. The May 15th deadline is firm. Late filings trigger daily fines immediately. Don't let a simple reporting task turn into a $50,000 problem.

3. Get an Energy Audit

An ASHRAE Level 2 audit will identify your biggest energy waste and the improvements with the best payback. Focus on the measures that move the needle on emissions, not just energy costs. In Boston, that usually means addressing heating systems first, since cold-climate buildings burn the most fossil fuel on space heating.

4. Plan for Electrification

Boston's grid is getting cleaner every year. Switching from oil or gas heating to heat pumps or electric boilers reduces your building's direct emissions significantly. For many buildings, electrification is the only realistic path to meeting the 2035 and 2040 limits.

5. Use Available Incentives

Mass Save offers substantial rebates for energy efficiency upgrades and electrification projects. Federal tax credits under the Inflation Reduction Act cover up to 30% of qualifying improvement costs. These programs won't last forever. Use them while they're available.

6. Don't Ignore Water

BERDO requires water usage reporting alongside energy. It's easy to overlook, but the city tracks both. Make sure your water data is accurate and included in your annual filing.

How Boston Compares to Other Cities

Boston's BERDO is one of the more aggressive building performance standards in the country. The daily penalty structure and the path to net zero by 2050 put it in the same league as NYC's Local Law 97, though the mechanics are different.

NYC charges per ton of excess CO2. Boston charges per day. Both approaches hurt, but Boston's daily fines create urgency because the meter is always running. There's no "pay the fine and move on" option here. You're paying every single day until you fix the problem.

If you own buildings in multiple cities, you need to track compliance for each one separately. Different rules, different deadlines, different penalty structures. That's exactly what BPS Check is built for.

The Bottom Line

BERDO is not a benchmarking exercise. It's a binding emissions reduction law with real financial teeth. The first compliance period is already active for large buildings, and the limits only get tighter from here.

The building owners who start now will spread their capital costs over time, lock in better contractor pricing, and capture incentives while they're still available. The ones who wait will face steeper limits, higher fines, and a crowded market of building owners all scrambling for the same contractors.

Check where your building stands today.