INTRODUCTION
In 2024, Local Law 97 (LL97)
officially began enforcing
greenhouse gas (GHG) emissions
limits for covered buildings in New
York City. With enforcement now
underway, the significance and
impact for property owners
across the city from LL97 moving
from policy to practice cannot be
understated.
What is Local Law 97?
Introduced: 2019
Effective from: January 1, 2024
Region(s): New York City, USA
01
Sets carbon caps for
buildings over 25,000
square feet
02
Starts in 2024 and
drives toward net zero
emissions by 2050
03
Allows multiple ways to
comply, including for
affordable housing
04
Includes large fines for
exceeding carbon caps
LL97 was first enacted in 2019 as
part of a package known as New
York City's Climate Mobilization Act
and is regarded as one of the most
ambitious building emissions
regulations globally. In the United
States this type of regulation is
known as a 'Building Performance
Standard', which are designed to
drive deep greenhouse gas (GHG)
emission cuts from large buildings.
With buildings responsible for two-
thirds of NYC's annual emissions,
this law is extremely important in
reducing the overall carbon
footprint of the city. This law:
50,000
60% 50%
buildings
of NYC's
building area
of NYC Building
emissions
Copyright 2024 Tango. All rights reserved.
