New York State’s smoke detector law requires every home to have working smoke alarms positioned so they can be heard in each bedroom with the door closed, and since April 1, 2019, any battery-operated smoke alarm sold in the state must contain a sealed, non-removable battery rated to last at least ten years.1New York State Department of State. New Residential Smoke Alarm Sales Requirements Go into Effect April 1 The rules govern what you can buy, where you must install it, who maintains it in a rental, and what a violation costs. New York City adds its own layer on top.
What Kind of Smoke Alarm You Can Buy
Under General Business Law § 399-ccc, it is illegal to sell, distribute, or import any battery-only smoke alarm in New York that uses a replaceable battery. Every battery-operated unit must run on a non-removable, non-replaceable battery with at least a ten-year life, and the packaging must show the manufacturer’s name or trademark, the model number, and a statement confirming the battery rating.2New York State Senate. New York General Business Code 399-CCC – Smoke Detecting Devices
Hardwired alarms that draw power from the building’s electrical system are not affected. Devices connected to fire alarm panels and those using low-power wireless radio signals are also exempt. Older removable-battery stock that a retailer, contractor, or owner had on hand before the law took effect could be used up, but any new inventory must comply.2New York State Senate. New York General Business Code 399-CCC – Smoke Detecting Devices
Where the Alarms Have to Go
Executive Law § 378(5-b) requires at least one working smoke alarm in every one- and two-family dwelling, condominium unit, and cooperative apartment used as a residence. It must be positioned so the sound is clearly audible in each bedroom with the doors closed.3New York State Senate. New York Executive Code 378 – Standards for New York State Uniform Fire Prevention and Building Code If sleeping areas are on more than one floor, put a detector on each of those floors near the bedrooms.4New York State Assembly. Smoke Detectors Save Lives
Residential buildings with common spaces shared by three or more dwelling units need alarms audible in every common area, including lobbies, hallways, and stairwells.3New York State Senate. New York Executive Code 378 – Standards for New York State Uniform Fire Prevention and Building Code
Selling a one- or two-family home or a co-op or condo unit? The seller must confirm working smoke alarms are installed before transferring the property, and any new or replacement alarm has to be either a ten-year sealed-battery unit or hardwired to the building.4New York State Assembly. Smoke Detectors Save Lives
Who Is Responsible in a Rental
New York splits the duty between landlord and tenant, and the handoff point is move-in day.
The Landlord’s Side
Landlords must provide and install working smoke detectors that meet current state standards before a tenant moves in. During the first year after installation, if a detector malfunctions through no fault of the tenant, the landlord has to repair or replace it. Those obligations come from Multiple Residence Law § 15 and Multiple Dwelling Law § 68.5New York State Attorney General. Residential Tenants Rights Guide Any replacement alarm has to be a sealed ten-year unit or hardwired.4New York State Assembly. Smoke Detectors Save Lives
The Tenant’s Side
Once you’re in the unit, keeping the alarms functional is on you. Test them, don’t disable them, and don’t remove them. If one stops working, notify your landlord in writing. Disabling a smoke alarm can expose you to a lease violation and, if a fire injures someone, potential personal liability. Most disputes in this area come from a simple misunderstanding: tenants assume the landlord handles everything forever, and landlords assume the tenant handles everything after move-in. The actual rule is a handoff, with the landlord stepping back in only for defects during that first year.
Extra Rules in New York City
In the five boroughs, NYC Administrative Code § 27-2045 adds requirements on top of the state baseline. The owner of any multiple dwelling or private dwelling must install one or more working smoke detectors in each dwelling unit.6New York City Administrative Code. New York City Administrative Code 27-2045
Placement
NYC requires an alarm outside each sleeping room, within 15 feet of the entrance. Newer buildings also need one inside each sleeping room. Basements require a detector as well.7NYC Fire Department. Smoke and Carbon Monoxide Alarms The Building Code sets three required locations inside dwelling units: in sleeping areas, in every room along the path from a sleeping area to the exit door, and on each story including below-grade levels.8New York City Administrative Code. 907.2.8.3 Smoke Detectors Within Dwelling Units and Sleeping Units
Fees and Replacement Timing
Owners must give each unit written instructions covering how to operate, test, maintain, and replace the alarms. An owner may charge a tenant for a battery-operated smoke detector, but the fee cannot exceed the lesser of the actual cost or $25. For a combined smoke and carbon monoxide device, the cap is $50.6New York City Administrative Code. New York City Administrative Code 27-2045
When a tenant moves out and a detector was stolen, removed, or rendered inoperable during that occupancy, the owner must replace it before the next tenant moves in. If a device becomes inoperable within one year of installation through no fault of the tenant, the owner has 30 calendar days from written notice to replace it.9New York City Rules. 12-01 Owner Responsibilities for Smoke Detecting Devices
Carbon Monoxide Alarms Are Required Too
Under Amanda’s Law, codified through Executive Law § 378(5-a), every one- and two-family home, townhouse, condo unit, co-op apartment, and multiple dwelling must have a working carbon monoxide alarm if the building has fuel-burning appliances, devices, or systems, or an attached garage.3New York State Senate. New York Executive Code 378 – Standards for New York State Uniform Fire Prevention and Building Code Fuel-burning sources include furnaces, gas stoves, wood stoves, fireplaces, and oil or propane heating systems.
Placement depends on when the building was constructed:
- Built before January 1, 2008: One- and two-family homes need a CO alarm on the lowest floor with a sleeping area. Multiple dwellings need one in each unit located on the same story as a CO source.
- Built on or after January 1, 2008: CO alarms are required on each floor with either a sleeping area or a CO source.
Battery-operated and plug-in alarms are acceptable in pre-2008 buildings, and they don’t need to be interconnected. Newer construction generally follows standards that require hardwired or interconnected systems.10New York State Department of Health. Emergency Rule Making – Installation of Carbon Monoxide Alarms in Residential Buildings All CO alarms must be kept in working condition and replaced when defective or at the end of their useful life. In New York City, landlords must install CO detectors in the same locations required for smoke alarms.7NYC Fire Department. Smoke and Carbon Monoxide Alarms
What Noncompliance Costs
Statewide penalties for failing to comply with a fire code order regarding smoke detectors escalate the longer the violation continues:
- First 180 days: up to $1,000 per day, imprisonment up to one year, or both.
- Days 181 through 360: a minimum of $25 per day, imprisonment up to one year, or both.
- Beyond 360 days: a minimum of $50 per day, imprisonment up to one year, or both.
These apply once an owner has been ordered to bring a property into compliance with the Uniform Fire Prevention and Building Code and fails to do so.4New York State Assembly. Smoke Detectors Save Lives The imprisonment component signals this is not treated as a minor regulatory infraction.
In New York City, violations of § 27-2045 carry a separate civil penalty of $250 to $500 per violation, and each missing or nonfunctional unit is counted individually.6New York City Administrative Code. New York City Administrative Code 27-2045 A building with problems across multiple apartments can accumulate fines quickly.
Alarms for Deaf and Hard-of-Hearing Residents
A standard 85-decibel alarm does nothing for a person who cannot hear it. Visual and tactile systems fill that gap. Strobe-light alarms flash at an intensity measured in candela, and the required brightness depends on room size and layout: a small bedroom might use a 15-candela strobe, while a longer hallway could need 60 candela or more to stay visible from any position.
Bed-shaker systems pair a smoke alarm transmitter with a vibration device placed under the pillow or mattress. When the transmitter picks up smoke, it signals the receiver, which triggers a strong vibration and a visual flash. These systems are certified to UL 217, the same standard that covers conventional residential smoke alarms, and they include backup batteries for power outages. If you or someone in your household needs a visual or tactile alarm, check with your local fire department, since many offer free or subsidized equipment through community safety programs.