CO alarms are required in newly constructed single and multi-family dwellings and existing single and multi-family dwellings when sold or transferred. Effective date: April 2011 CO alarms are required in all rental properties. Effective date: July 2010

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All solely battery-operated ionization smoke alarms sold in the state must be packaged with a 10-year battery. All ionization smoke alarms must feature a hush mechanism that allows a person to temporarily disengage the alarm for a period of not more than 15 minutes. Effective date: 1998

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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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