# NYC energy law deadlines

> Most NYC buildings over 25,000 square feet must benchmark energy use (LL84) and file an emissions report (LL97) by May 1 each year, then post an energy grade label (LL33) within 30 days after October 1. Buildings over 50,000 square feet also file an energy audit (LL87) every ten years, in the year matching the last digit of the tax block.

Source page: https://coderalert0.github.io/nyc-dob-violations-site/energy-law-deadlines.html
Checked against city sources on November 4, 2026. Independent app. Not affiliated with or endorsed by the NYC Department of Buildings or the City of New York.

## Energy deadlines at a glance

| Law | What is due | Covers | When |
|---|---|---|---|
| Local Law 84 | Benchmarking report | Buildings over 25,000 gross square feet | May 1 each year |
| Local Law 97 | Annual emissions report | Most buildings over 25,000 square feet | May 1 each year |
| Local Law 33 | Energy grade label posted near each public entrance | Buildings covered by Local Law 33 | Within 30 days after October 1 |
| Local Law 87 | Energy Efficiency Report | Buildings over 50,000 gross square feet | December 31, every ten years |

## Local Law 84 benchmarking

Owners report the building's annual energy and water use through the EPA's benchmarking tool. Reports for calendar year 2025 were due May 1, 2026. DOB can extend a deadline by notice, as it did in 2025, so check the current year's notice.

## Local Law 97 emissions reports

Covered buildings file a report by May 1 of each year. For 2026, DOB's notice set the compliance report for May 1 and no later than June 30, and owners had until June 30 to apply for an extension to August 29.

## Local Law 33 energy grades

DOB issues the Building Energy Efficiency Rating label every October 1. Owners must post it in a conspicuous location near each public entrance within 30 days. For 2026, DOB stated the window as October 1 to October 31. A building that did not submit benchmarking information on time gets an F grade.

## Local Law 87 energy audits

Owners file an Energy Efficiency Report in the calendar year whose last digit matches the last digit of the building's tax block number, by December 31. A building on a block ending in 6 is due by December 31, 2026, and one ending in 7 by December 31, 2027.

## Frequently asked questions

### What is the deadline for NYC energy benchmarking?

May 1 each year, for the previous calendar year's energy and water use.

### When do I have to post my energy grade?

Within 30 days after October 1 each year, so by October 31. The label stays up until October 1 of the next year.

### Which year is my LL87 audit due?

Match the last digit of your tax block number to the last digit of the year. Block 1236 is due in 2026 and 2036.

### Do these laws apply to buildings under 25,000 square feet?

LL84 and LL97 generally cover buildings over 25,000 square feet, with extra categories such as multiple buildings on one tax lot. Check the Covered Buildings List for your property.

## Sources

- [NYC DOB: Deadlines for Sustainability Laws in 2026](https://www.nyc.gov/assets/buildings/pdf/sustain_dead-sn.pdf)
- [NYC DOB: LL84 Benchmarking](https://www.nyc.gov/site/buildings/codes/ll84-benchmarking-law.page)
- [NYC DOB: LL33 Energy Grading](https://www.nyc.gov/site/buildings/codes/ll33-energy-grading.page)
- [NYC DOB: Energy Audits and Retro-Commissioning](https://www.nyc.gov/site/buildings/codes/ll87-energy-audits-retro-commissioning.page)
- [NYC DOB: LL97 Greenhouse Gas Emissions Reductions](https://www.nyc.gov/site/buildings/codes/ll97-greenhouse-gas-emissions-reductions.page)