Rental and cooperative building owners are required by law to provide and properly install at least one approved carbon monoxide alarm within 15 feet of the primary entrance to each sleeping room. This applies to all one- and two-family homes and residential buildings with three or more units.
Carbon monoxide detectors are required to be replaced as their useful life expires. After this replacement, landlords are required to replace carbon monoxide detectors as their useful life expires according to the manufacturer's instructions, based on the original date of installation. The replacement device must be a model that has an end-of-life alarm.
While owners are required to install carbon monoxide detectors, tenants are responsible for maintaining them and changing the batteries. Tenants must pay the owner $25 when the owner installs a new carbon monoxide detector, replaces a carbon monoxide detector that has reached the end of its useful life, or replaces one that the tenant lost or damaged. Tenants have up to one year to make the payment.