CO alarms are required in all newly constructed one and two-family dwellings, town homes not more than three stories and multi-family dwellings. CO alarms are also required in all existing multi-family dwellings, existing single-family dwellings upon sale only, and all rental dwellings. Effective: September 2009

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In new and existing single-family dwellings, a photoelectric smoke alarm must be installed within 20 feet of a kitchen or full bathroom. Effective: October 2009

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Smoke alarms are generally required in residential settings. Hard-wired smoke alarms are required in all new construction.

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