Local law 87
Local Law 87 (LL87) mandates that buildings over 50,000 gross square
feet undergo periodic energy audit and retro-commissioning measures, as
part of the Greener, Greater Buildings Plan (GGBP).

The intent of this law is to inform building owners of their energy
consumption through energy audits, which are surveys and analyses of
energy use, and retro-commissioning, the process of ensuring correct
equipment installation and performance.

Failure to file an energy efficiency report is a class 2 violation. Penalty of
3000 dollars in the first year, and 5000 for each additional year that a
report is not submitted. The energy auditor performing or supervising the
auditing on a building must not be a member of the building’s staff.