All states have laws (statutes) that require landlords to install and maintain smoke detectors in leased residential premises (apartments, homes).

Some states such as Iowa, Maine, Massachusetts, Ohio, and Vermont require photoelectric or ionization sensors—at least in new construction. And Oregon requires smoke detectors with a HUSH mechanism that allows the alarm to be silenced or temporarily desensitized for 7 minutes while a known condition such as cooking is causing the alarm to activate.

Most states also require landlords to install and maintain carbon monoxide detectors in leased residential premises. Smoke and carbon monoxide detectors are widely available in the same device.

In Rhode Island, landlords are required by law to install and maintain smoke detectors in leased residential premises. Rhode Island General Laws § 23-28.1-4 mandates that smoke detectors be installed in accordance with the rules and regulations of the Fire Safety Code Board of Appeal & Review. The law specifies that smoke detectors must be located in each sleeping area, immediately outside of sleeping areas, and on each level of the dwelling unit, including basements. Additionally, Rhode Island General Laws § 23-27.3-112.1 requires carbon monoxide detectors in any dwelling that contains a carbon monoxide source, such as a furnace or appliance, or has an attached garage. These detectors must be installed in accordance with the manufacturer's instructions and the state's fire safety code. The combination of smoke and carbon monoxide detectors in one device is permissible and common, provided they meet the necessary safety standards and regulations.