DUO Mechanical
Local Law 87 Explained
Compliance

Local Law 87 Explained

What NYC Local Law 87 requires — energy audits and retro-commissioning for larger buildings — and what it means for your mechanical systems.

What Local Law 87 requires

Local Law 87 requires larger NYC buildings to perform a periodic energy audit and retro-commissioning (RCx), filed as an Energy Efficiency Report (EER), on a recurring cycle. The goal is to identify and correct energy waste in building systems.

Which buildings are covered

It generally targets buildings above a square-footage threshold, scheduled by tax block on a multi-year cycle. {{VERIFY_CURRENT_THRESHOLD}} — confirm your building's coverage and due year with the DOB or ask us to check.

The mechanical side

Much of what an audit flags is mechanical: boiler and HVAC efficiency, controls, scheduling and distribution. Retro-commissioning tunes existing systems to run as intended before recommending capital upgrades.

How we support compliance

We handle the mechanical assessment and corrective work — boiler and HVAC tuning, controls and distribution fixes — and coordinate with your energy auditor so the report reflects work actually done.

This guide is general information, not a quote. For numbers specific to your building, request a written estimate.
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