Pursuant to Chapter 12 of the Rules of the City of New York, landlords must post a notice regarding carbon monoxide detectors in a common area of a building. See Smoke and Carbon Monoxide Detectors for the landlord’s and tenant’s responsibilities regarding smoke and carbon monoxide detectors.

HPD has a sample combined gas leak and smoke/carbon monoxide detector notice.

Question: Is a landlord required to give a tenant a notice regarding carbon dioxide detectors upon a lease signing or renewal?

No, a landlord is not required to give a tenant a notice regarding carbon dioxide detectors upon a lease signing or renewal. Chapter 12 of the Rules of the City of New York does not impose such a duty on landlords.

I have seen landlords give combined notices for gas leaks and carbon monoxide to prospective tenants.

The Rules of the City of New York > Title 28: Housing Preservation and Development > Chapter 12: Smoke Detecting and Carbon Monoxide Detecting Devices and Systems in Multiple Dwellings (6/2021, Annotated)

Changes made to RCNY Chapter 12 in 2016 (Annotated)