Compliance · New York City only
Local Law 87 does not end at the report. What retro-commissioning finds has to be fixed.
Every ten years, a New York City building over 50,000 square feet gets an energy audit and a retro-commissioning study of its base building systems, and a licensed engineer or architect files the results with the Department of Buildings. The audit's recommendations are advice. The retro-commissioning deficiencies are not: the rule says they must be corrected, and most of them sit in the controls.
Checked October 27, 2026. Buildings whose tax block number ends in 6 file by December 31, 2026. Local Law 87 is a New York City law; it does not reach Westchester, Long Island or New Jersey.
Is it your year
Local Law 87 is the one New York City energy law that does not run on an annual calendar. The year a building files is set by the last digit of its tax block number, and it comes around again every ten years.
Energy Efficiency Report, or an application to defer it (form EER1), for buildings whose tax block number ends in 6.
New York CityEnergy Efficiency Report for buildings whose tax block number ends in 7. Extension requests for that cohort are due October 1, 2027.
New York CityNot every covered building files a full report. A building under ten years old or substantially rehabilitated can defer (form EER1, filed by December 31 of its compliance year). A building that earned the ENERGY STAR label in two of the three prior years is excused from the audit, though not from retro-commissioning. Extension requests are due October 1 of the compliance year, so for the 2026 cohort that window has closed, and the Department's one-time extension for the 2025 cohort does not carry over to 2026.
What it requires
The Energy Efficiency Report carries two different pieces of work. They are usually bought as one package, but the law treats their findings differently.
The correction list
The rule names what retro-commissioning has to examine. Read as a list, it describes a building automation system that has drifted from how the building is used.
Who may make the corrections. The rule limits who performs the audit and the study, and who files the report. It does not limit who performs the corrective work. That is where ieComfort works: controls sequences, sensors and the building automation system, with the trend data and functional tests that show each deficiency is closed before the report goes in.
Who does what
The energy auditor and the retro-commissioning agent may not be on the building's own staff, and the report must be filed by a registered design professional.
Who pays
In New York City the diagnosis and the correction are funded by different programs, and the order of operations decides what qualifies. Every program figure here is subject to program funding and to the current year's manual.
If the report is late
A missing Energy Efficiency Report is a Class 2 violation. The Department will not accept a late report until the accrued penalties are paid, and penalties are paid and challenged in DOB NOW: Safety. The penalty attaches to the filing; what the filing has to show is that the deficiencies were corrected.
One building, one tax block
Send the building's address and, if you have them, the last Energy Efficiency Report and a point list or trend export from the building automation system. We reply by email with the building's Local Law 87 year from the City's list, what the last report found, which deficiencies are controls work, and what a correction plan would cover. The report itself is filed by a licensed engineer or architect; we set out what that professional will need from the controls side.
Until the screening tool is live, this is a short intake form.
Sources and dates
