Carbon monoxide alarms shall be installed in dwellings in accordance
with Section 1103.9 of the International Fire Code, except that alarms in dwellings covered by the International
Residential Code shall be installed in accordance with Section
R315 of that code.
Carbon monoxide alarms and carbon monoxide detection systems
shall be maintained in accordance with NFPA 720. Carbon monoxide alarms
and carbon monoxide detectors that become inoperable or begin producing
end-of-life signals shall be replaced.