Local authority · New York
New York City — energy & appliance code adoption
Yes — effectively. NYC operates an independent municipal electrical code under Title 27 / 28 of the NYC Administrative Code, adopting NFPA 70-2020 with extensive city-specific amendments via Local Law 128 of 2024 — rather than New York State's adoption of the 2023 NEC. NYC also runs its own Building and Fire Codes in lieu of the NYS Uniform Code under home-rule authority. Below: how New York City differs from New York on appliance listing, NEC, fire code, and energy storage, with sources.
Is UL 858 required in New York City?
Yes — effectively. New York City requires fixed household appliances to be listed by a Nationally Recognized Testing Laboratory (NRTL), and UL 858 is the de-facto listing standard a household electric range must meet. NYC Electrical Code Article 422 + Article 110 listing rules effectively require household electric ranges to be listed to UL858 (or equivalent NRTL standard); the DOB Approved Equipment program enforces this at inspection.
Are NRTL-listed (UL / ETL / CSA) appliances required in New York City?
Yes. New York City's adopted code requires fixed electrical appliances to be listed by an NRTL (UL, ETL/Intertek, CSA, etc.) — NYC Electrical Code Article 110 (NEC 110.2 / 110.3). All electrical equipment installed in NYC must be listed by an approved testing laboratory; the DOB maintains an Approved Equipment list and accepts NRTLs (UL, ETL/Intertek, CSA, etc.).
Which edition of the NEC does New York City use?
New York City has adopted the 2020 edition of the National Electrical Code (NEC), effective 2025-12-21. NYC Electrical Code = NYC-specific amendments to NFPA 70-2020, enforced under Title 27 / 28 of the NYC Administrative Code by the NYC DOB. Replaced the legacy 2011 NYC Electrical Code (based on 2008 NEC).
Is UL 9540 required for residential energy storage in New York City?
Yes. New York City's adopted code requires UL 9540 listing for stationary energy storage systems (ESS) in dwellings. FDNY effectively prohibits indoor lithium-ion ESS in occupied R-2 / R-3 dwelling units. Outdoor / detached-garage installs require an FDNY Certificate of Approval, COF, and pre-installation plan review. UL 9540A large-scale fire test mandatory. Post-2023 Local Laws 39-43 tightened lithium battery rules citywide.
Is UL 9540A fire-propagation testing required in New York City?
Yes. New York City's adopted code requires UL 9540A listing for energy storage systems.
What is the residential energy-storage capacity limit in New York City?
Indoor residential lithium energy storage is effectively prohibited in occupied dwelling spaces in New York City.
Which fire code does New York City enforce?
New York City enforces other 2015. 2022 NYC Fire Code based on 2015 IFC with FDNY amendments (Local Law 47 of 2022). Title 29 of the NYC Administrative Code; FDNY enforces; effective April 15, 2022.
Code adoption summary
| NEC edition | 2020 NEC |
|---|---|
| Appliance listing (UL 858) | Effectively required |
| NRTL listing requirement | Required |
| Fire code | other 2015 |
| IRC edition | — IRC |
| UL 9540 (residential ESS) | Required |
| UL 9540A propagation test | Required |
| Residential ESS cap | No indoor ESS |
| NFPA 855 edition | 2020 |
Sources
- NYC DOB — Electrical Code
- 2025 NYC Electrical Code (PDF)
- NYC DOB — 2022 Construction Codes
- FDNY — NYC Fire Code
- NYC Fire Code 2022 — Title 29 Ch. 12
- 1 RCNY 608-01 — Outdoor Stationary Storage Battery Systems
- NYC Local Law 39 of 2023 (Int. 0663-2022)
- FDNY — Lithium-Ion Battery Safety / Powered Mobility Devices