NYC agency · Climate / energy
Office of Building Energy & Emissions Performance (LL97 Office)
The office that administers Local Law 97 and the city’s building-decarbonization mandate.
What this office does
Housed within DOB and coordinated with the Mayor’s Office of Climate & Environmental Justice, this office administers Local Law 97 and the Climate Mobilization Act — the emissions caps, annual reporting, penalties, and decarbonization pathways for large buildings.
What owners deal with
- Annual emissions reports (due May 1) and the carbon caps by building type.
- The $268/ton penalty over the limit and the much stricter 2030 caps.
- Good-faith, decarbonization-plan, and alternate-compliance pathways.
How to look it up
Estimate your cap and penalty with the NYC Building Compliance Local Law 97 calculator, and read the full LL97 guide.
Local Laws this agency enforces
Local Law 97 · Benchmarking (LL84) · Energy Audit (LL87) · Lighting (LL88)
Reviewed against current NYC agency guidance by the NYC Building Compliance editorial team. Found something out of date? Tell us. Informational only — not legal or engineering advice.
See every obligation and open violation for your building.
Run your compliance profile →Primary sources
NYC Building Compliance is an independent resource, not the City of New York. Rules and dollar amounts change — always confirm against the official pages above or a licensed professional before acting.