What Are New York Landlord CO Detector Requirements?
A tenant turns on the gas furnace in a Yonkers duplex for the first time in October and hears nothing from the hallway alarm because there is no alarm. Under Amanda's Law, that missing device is not a landlord oversight, it is a legal violation with escalating daily fine exposure. New York rental carbon monoxide detector requirements sit at the intersection of Executive Law Section 378(5-a) and Uniform Code enforcement, creating a two-layer compliance framework that many landlords underestimate. This page breaks down who must install CO alarms in New York rental properties, what tenants are required to do each month, where devices must be placed relative to fuel-burning appliances, and how penalty exposure escalates under Executive Law Section 382 when violations remain uncorrected.
Last verified: August 24, 2026
Key Takeaways
- Amanda's Law (Executive Law §378(5-a)) requires CO alarms in New York rentals with fuel-burning appliances or attached garages.
- Landlords must install listed CO devices and maintain them in working order throughout the tenancy.
- Tenants have a monthly testing duty and must report suspected malfunctions to the property owner or manager.
- Placement rules require at least 15 feet of distance from fuel-burning appliances, with alarms in sleeping areas and on every level.
- Devices must be listed to UL 2034 or CAN/CSA 6.19 for alarms, or UL 2075 for detection systems.
- Penalties under §382 can reach $1,000 per day and escalate with minimum daily fines after 180 days of noncompliance.
Legal Summary
New York's rental CO detector framework originates with Amanda's Law, codified in Executive Law Section 378(5-a), which requires carbon monoxide detection in dwelling units where CO-emitting appliances, devices, systems, or attached garages are present. The statute uses "multiple dwelling" terminology that is legally significant, it extends coverage to apartments, lodging houses, and other multi-unit occupancies beyond single-family homes.
The Uniform Code provides the second enforcement layer. State guidance from the Department of State and DHSES Office of Fire Prevention and Control specifies device listing standards, maintenance protocols, and inspection frameworks under 19 NYCRR Part 1203. This two-layer model means a New York rental operator faces both statutory installation requirements and code-based maintenance and inspection obligations.
For landlords, the compliance question is not simply whether an alarm is present. It is whether the device is listed to the correct standard, placed at proper distances from combustion sources, maintained per manufacturer and NFPA 720 instructions, and documented in a way that survives local code enforcement review. The penalty framework under Executive Law Section 382 reinforces this: violations carry daily fine exposure that escalates over time, making delayed correction significantly more expensive than prompt compliance.
Who Rental Rules Cover
Amanda's Law applies to dwelling units with a potential carbon monoxide source or an attached garage. In rental contexts, that covers most apartments, duplexes, and leased single-family homes with gas furnaces, water heaters, boilers, stoves, or other fuel-burning equipment. The law's "multiple dwelling" definition is broader than many landlords realize, it includes buildings with three or more units and extends to lodging houses, which means some mixed-use and hospitality properties also fall within scope.
The trigger is risk-based, not building-type-based. An all-electric rental unit without an attached garage may fall outside the requirement, but landlords should verify actual building conditions rather than relying on lease descriptions. Neighboring units with combustion equipment in shared-system buildings can create ambiguity. NYC landlords face an additional layer because New York City operates under its own building code enforcement framework, separate from the statewide Uniform Code.
Landlord Responsibilities
New York landlords carry the primary legal duty for CO detector compliance in rental properties. Under Executive Law Section 378(5-a), the owner must ensure that required CO alarms or detection systems are installed in every dwelling unit where fuel-burning equipment or an attached garage creates a carbon monoxide source. This is not a best-effort recommendation, it is a statutory installation requirement.
The landlord's duty extends beyond initial installation. Uniform Code references cited by DOS/DHSES Code Outreach Issue 2025-01 require that devices be maintained in good working order, tested periodically, and serviced according to NFPA 720 and manufacturer instructions. In practice, this means landlords should document battery replacements, device age tracking for end-of-life replacement, and post-inspection corrective actions.
When a tenant reports a suspected malfunction or a missing device, the landlord must address the issue rather than deferring responsibility. Failure to correct a reported deficiency can create both enforcement exposure and civil liability if a CO incident occurs during the gap.
For multi-unit operators, compliance also means coordinating with local code enforcement inspection cycles. Fire Safety and Property Maintenance inspections under 19 NYCRR Part 1203 can evaluate CO alarm presence and condition. Landlords who maintain dated installation records and service logs are better positioned to demonstrate compliance during these reviews and to respond efficiently if an order to remedy is issued.
Tenant Responsibilities
New York assigns tenants a more active role than many other states. According to DHSES/OFPC guidance, tenants must test CO alarms at least monthly and keep devices unobstructed. This is a genuine compliance duty, not merely a suggestion, monthly testing is the state's stated expectation for occupants.
Beyond testing, tenants must promptly report suspected issues to the property owner or manager. That reporting obligation creates a documented chain: the tenant identifies a potential problem, communicates it to management, and the landlord then has notice to act. Written reports through email or maintenance portals create the strongest record for both parties.
Tenants should not disable, remove, or obstruct CO alarms. While the law places primary installation responsibility on the landlord, a tenant who deliberately interferes with a required safety device undermines the compliance framework and may face consequences in a liability dispute. The practical takeaway is straightforward: test monthly, keep devices clear, and report problems in writing as soon as they are noticed.
Installation, Placement, and Device Rules
New York placement standards combine statutory requirements with OFPC guidance. If only one CO alarm is installed, it should be placed in the main bedroom or the hallway immediately outside the sleeping area. When multiple devices are feasible, alarms should be installed on every level of the home and in sleeping areas. A critical placement detail: devices must be positioned at least 15 feet from fuel-burning appliances to avoid nuisance alarms, and should not be placed in dead-air spaces or directly next to windows or doors.
Device listing requirements are specific. CO alarms must comply with UL 2034 or CAN/CSA 6.19, notably, New York accepts the Canadian standard alongside the domestic UL listing. CO detectors used in detection systems must be listed to UL 2075. All devices must be maintained per NFPA 720 and manufacturer instructions, which typically include periodic testing and end-of-life replacement. These standards are reinforced by DOS/DHSES Code Outreach Issue 2025-01.
Move-In, Testing, Maintenance, and Notice
The New York rental compliance workflow has three critical moments. Before move-in, the landlord must verify that required CO alarms are installed and operational in any unit with a qualifying CO source or attached garage. A unit cannot be treated as ready for occupancy if the alarm is missing or nonfunctional at handoff.
During tenancy, the testing burden is shared. Tenants must test alarms monthly, this is a stated DHSES/OFPC expectation, not optional good practice. Landlords must maintain devices in working order, which includes battery replacements, responding to tenant malfunction reports, and replacing devices that have reached manufacturer-specified end-of-life dates.
For entry and inspection, landlords should follow applicable state and local notice requirements when accessing units for CO alarm service. Maintaining a documented service-access workflow protects both compliance standing and the landlord-tenant relationship. Records of each device test, battery change, and replacement should be retained for inspection readiness, especially given the FSPM inspection framework under 19 NYCRR Part 1203.
Enforcement, Complaints, and Tenant Remedies
Uniform Code enforcement in New York is primarily local. Code enforcement officers and fire officials have authority to inspect for CO alarm compliance, issue orders to remedy, and write appearance tickets when violations are found. Inspection intervals and processes vary by jurisdiction under 19 NYCRR Part 1203.
Tenants who cannot resolve a missing or defective CO alarm through direct communication with the landlord can contact local code enforcement or fire officials to initiate a complaint. The enforcement process typically begins with a notice and order to remedy rather than an immediate fine, giving the owner a window to correct the violation. However, ignoring an order to remedy dramatically increases penalty exposure under Executive Law Section 382. In NYC, tenants may also contact the city's own housing enforcement channels, which operate separately from the statewide Uniform Code framework.
What a Tenant Can Do in New York
When a carbon monoxide alarm stops working in a rented home in New York, these are the five routes a tenant can take and where each one comes from.
"Via general law" means the New York carbon monoxide statute itself is silent and the remedy comes from the state's landlord-tenant law instead. The remedy is available even though the alarm rule does not contain it.
"No provision found" is a finding rather than a gap in the research: the chapter that would carry that remedy was read and contains nothing either way. What was read is named beside the row.
| Rent withholding | Via general lawN.Y. Real Prop. Law 235-b. The warranty of habitability is the statewide hook: it covenants that occupants will not be subjected to conditions dangerous to life, health or safety, and it cannot be waived. It does not itself say a tenant may withhold; abatement is what courts award for its breach. The one statutory withholding procedure, Multiple Dwelling Law 302-a, applies only in cities of 400,000 or more, requires a departmental rent-impairing violation, and makes the tenant deposit the disputed rent with the court rather than keep it. |
|---|---|
| Repair and deduct | No provision foundSearched: N.Y. Real Property Law Article 7 (landlord and tenant, including 235-b) and the Multiple Dwelling Law provisions on repairs and rent, Article 6 and 302-a. No statute supplies repair-and-deduct in New York. Courts have allowed a tenant who gave notice and waited a reasonable time to set the reasonable cost of a habitability repair off against rent, the case usually cited being Jangla Realty Co. v. Gravagna, but that is a New York City Civil Court decision rather than a statewide provision, which is why it sits in this note and not in the citation. |
| Right to end the lease | Via general lawN.Y. Real Prop. Law 227. A tenant may quit and surrender where the building is destroyed or so injured by the elements or any other cause as to be untenantable and unfit for occupancy, without the tenant's fault, and is then not liable for rent after the surrender. The threshold is the unit being unfit to live in, not a device needing a battery, so this reaches a live CO hazard and not a routine alarm defect. |
| Notice the tenant must give | No provision foundSearched: N.Y. Real Property Law Article 7 and Multiple Dwelling Law Article 6, checked for any notice period a tenant must serve or wait out. 235-b imposes no notice requirement and sets no period. The Multiple Dwelling Law's clock in 302-a runs from the department's notice to the owner, not from the tenant's, so it is not a tenant notice period either. Notice matters in practice because the common-law set-off requires it, but no statute fixes its form or length. |
| Landlord cure period | Via general lawN.Y. Mult. Dwell. Law 302-a. Six months must pass after the department notifies the owner of a rent-impairing violation before rent may be withheld, and the owner can extend that by filing corrective plans within three months. No day count is recorded in this cell because the section reaches only cities of 400,000 or more and is therefore not the answer for most of the state. Everywhere else the period is whatever is reasonable under 235-b, decided case by case. |
Applies to every row above:New York's CO alarm mandate is code-based, through Executive Law 378(5-a) and the Uniform Code, and creates no tenant remedy at all, so every column here comes from general landlord-tenant law. That law splits by geography, as Illinois does around Chicago and Pennsylvania around Philadelphia, and it splits further than either. Real Property Law 235-b, the warranty of habitability, is statewide. The Multiple Dwelling Law, which carries the only statutory rent-withholding procedure and the only statutory cure clock, reaches multiple dwellings in cities of 400,000 or more, which in practice means New York City. A tenant in Rochester and a tenant in Brooklyn therefore do not have the same statutory toolkit, and this single row cannot show that split. Municipal codes, New York City's above all, add their own CO device rules and are not recorded here.
Penalties and Liability
Executive Law Section 382 establishes the penalty framework for Uniform Code violations, including CO alarm noncompliance. Fines can reach $1,000 per day, and violations may carry imprisonment of up to one year. The penalty structure is notable for its escalation mechanism: after 180 days of continued noncompliance, minimum daily fines increase, making prolonged violations significantly more expensive than prompt correction.
Beyond statutory penalties, landlords face civil liability exposure when a required alarm is absent or inoperable during a CO incident. Unresolved violations can also complicate insurance claims, inspection outcomes, and landlord-tenant dispute proceedings. The financial case for proactive compliance is clear, installing and maintaining listed devices costs far less than a single day of escalated penalty exposure.
Local Override Warning
Amanda's Law is the floor for most of the state and the wrong starting point inside New York City. This sweep read the city's own Building Code Section 915 and found it defining coverage by proximity: alarms are required in units on the story holding carbon monoxide-producing equipment or enclosed parking, in units one story above and below it, and in units served by a central boiler even where that boiler stands in an attached building. Section 915.1.1.1.1 then requires a device in any room used for sleeping purposes and on every story, basements and penthouses included. A landlord with an all-electric apartment two floors above the boiler room is covered in the city and would not be under the state test alone. Two further city rules go past anything the state asks for. Local Law 77 of 2023 added Section 915.1.1.1.2, which requires hardware rather than a warning: in a one- or two-family home or a townhouse with an attached garage, a powered exhaust system that starts on its own at 35 parts per million and moves 1.5 cubic feet per minute for each square foot of garage floor, wired to fail safe so that a cut wire or a pulled sensor starts the fan, and kept off arc-fault and ground-fault protected circuits. No state carbon monoxide statute in this survey requires ventilation hardware at all. And Section 915.3.1 makes a detector at the source shut that source down, generators excepted, so a city boiler that trips its own detector stops instead of running on while an alarm sounds upstairs. Rochester and Buffalo could not be reached during this sweep and nothing should be inferred about them, and upstate rental certificate programs were outside it, so verify with your local code enforcement office before treating the statewide baseline as complete.
Frequently Asked Questions
Does Amanda's Law require CO detectors in New York rental properties?
Who is responsible for CO detectors in New York rentals: landlord or tenant?
Where must CO alarms be placed in a New York rental unit?
What are the penalties for missing a CO detector in a New York rental?
Do New York tenants have to test CO alarms every month?
Are NYC apartment CO detector rules different from the rest of New York state?
Disclaimer: This page explains the law as it stood on August 24, 2026. It is general information, not legal advice, and reading it creates no attorney-client relationship. Requirements vary by city, county and building type, and statutes and codes are amended: confirm the current text with the issuing authority before acting on it. Each requirement here cites the instrument it comes from, so you can check it at source.
Sources and References
- New York Executive Law §378(5-a), Standards for installation of carbon monoxide detectors , §378(5-a), CO detector installation requirements for dwellings with CO sources or attached garages
- New York State OFPC, Carbon Monoxide: The Facts (CO FAQ) , Q6 (need/placement) + testing and tenant reporting guidance
- NYS DOS/DHSES, Code Outreach Program Issue 2025-01: FSPM Inspections, CO Alarm and Detection , Uniform Code references, cited here at the 2020 editions and superseded on 31 December 2025 by the 2025 Uniform Code (2020 PMCNYS §705; 2020 FCNYS §915.1, §915.4, §915.6)
- New York Executive Law §382, Remedies (Uniform Code enforcement and penalties) , §382(1)-(2), penalties, daily fines, imprisonment, escalation after 180 days
- New York City Building Code Section 915, carbon monoxide detection, as it reaches dwelling units , 915.1.1.1, coverage fixed by proximity, reaching units on the story holding carbon monoxide-producing equipment or enclosed parking, the stories immediately above and below, units in a building with a central furnace, boiler or water heater, and units served by such a system standing in an adjoining or attached building; 915.1.1.1.1, a device in any room used for sleeping purposes and on every story including below-grade stories and penthouses; 915.1.1.1.2 (Local Law 77 of 2023), powered garage exhaust starting at 35 parts per million at 1.5 cubic feet per minute per square foot, fail-safe wiring, off arc-fault and ground-fault protected circuits; 915.3.1, source shutdown on detection, generators excepted