North Carolina Residential Building Code

The North Carolina Residential Building Code now requires carbon monoxide alarms to be installed in one- and two-family dwellings.

• In new construction, dwelling units shall be provided with an approved carbon monoxide alarm installed outside of each separate sleeping area in the immediate vicinity of the bedroom(s). (R313.1.1)
• In existing dwellings, where interior alterations, repairs, fuel-fired appliance replacements or work requiring a permit occurs, or where one or more sleeping rooms are added or created, carbon monoxide alarms shall be provided in accordance with Section 313.1.1.
• The requires carbon monoxide alarms shall be clearly audible in all bedrooms over background noise levels with all intervening doors closed. Single station carbon monoxide alarms shall be listed as complying with UL 2034 and shall be installed in accordance with the this code and the manufacturer’s installation instructions.

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