Louisiana –
“…Simply put, any house sold or leased after Jan. 1, 2023, will need to have at least one carbon monoxide alarm in the home.
In addition, the Louisiana Uniform Construction Code Council adopted an amendment to the state’s residential building code requiring carbon monoxide alarms to be installed at the same time a whole home, standby generator is installed. That change also goes into effect on Jan. 1, 2023.”
State Fire Marshal issues guidance ahead of new carbon monoxide alarm law change (wafb.com)