NYC Local Laws · Defined
Local Law 154 of 2021: New-building electrification
Restricts onsite combustion of higher-emitting fuels in covered NYC new-building applications through phased requirements and specified exceptions.
New York City jurisdiction · Sources checked September 15, 2026. Law numbers repeat by year. These educational summaries are not legal advice or a complete compliance checklist. Later amendments, agency rules, building characteristics, and effective dates determine the requirements for a particular property. Use the linked City sources to confirm current obligations.
Why it matters
The initial application date, building characteristics, affordable housing provisions, and system or space involved affect applicability. This is distinct from the emissions requirements for existing buildings under Local Law 97. Equipment selections should be coordinated with utility capacity, domestic hot water design, and the filing strategy.
In practice
A project example
A construction lender asks the design team to confirm the applicable phase of the law before accepting a budget based on gas-fired heating and domestic hot water.
Technical references
General educational guidance from KOW Building Consultants. Examples are illustrative, not project records. The applicable contract, standard, program, and jurisdiction control the requirements for a specific assignment.