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Last verified: · Confidence: medium
What smoke and carbon monoxide alarm rules apply to landlords in New York City?
Short answer
Smoke/CO/natural gas detectors, tenant notice and posting
Install and maintain approved detectors, give each unit a written notice on testing/maintenance at installation, post the required notices, and keep installation/maintenance records.
"Owners of all multiple dwellings (Class A and Class B Multiple Dwellings) and one- and two-family homes (non-owner occupied) that have fossil fuel burning devices are required to provide and install at least one approved and operational carbon monoxide detector within each dwelling unit." nyc.gov
"Upon installation, provide a notice to at least one adult occupant of each dwelling unit regarding the testing and maintenance of the smoke detector, the carbon monoxide detector," nyc.gov
Smoke/CO/natural gas detectors, tenant notice and posting Verified
Deadline: Ongoing requirement with no fixed date
Install and maintain approved detectors, give each unit a written notice on testing/maintenance at installation, post the required notices, and keep installation/maintenance records.
Who it covers: Smoke: all multiple dwellings. CO: multiple dwellings and non-owner-occupied 1-2 family homes with fossil-fuel devices. Natural gas detectors per NYC Building Code where there is gas piping.
"Owners of all multiple dwellings (Class A and Class B Multiple Dwellings) and one- and two-family homes (non-owner occupied) that have fossil fuel burning devices are required to provide and install at least one approved and operational carbon monoxide detector within each dwelling unit." nyc.gov
"Upon installation, provide a notice to at least one adult occupant of each dwelling unit regarding the testing and maintenance of the smoke detector, the carbon monoxide detector," nyc.gov
Notes: NYC Admin Code §27-2045 and 28 RCNY Ch. 12 (not snapshotted). Adds to state rules.
Last verified 2026-10-20 · Confidence: medium · Status: verified · Report a correction