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 Louisiana, landlords are required by law to install and maintain smoke detectors in leased residential premises. The Louisiana Revised Statutes (LRS) 40:1582 mandates that smoke detectors be installed in accordance with the State Uniform Construction Code. While Louisiana law does not specify the type of smoke detector (photoelectric or ionization) as some other states do, it does require that the devices be maintained in good working order. Additionally, Louisiana law, under LRS 9:3253, requires the installation of carbon monoxide detectors in certain residential buildings. This includes any single-family or multifamily dwelling that has a fuel-burning heater or appliance, a fireplace, or an attached garage. Landlords are responsible for the installation and maintenance of these detectors to ensure the safety of their tenants.