CO alarms are required in all dwelling types: New multi-family dwellings (effective October 2008) Existing multi-family dwellings (effective April 2010) New and existing one- and two-family dwellings (February 2011)

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Wisconsin Commercial Building Code requires the installation of 10-year sealed battery smoke alarms or hard-wired smoke alarms with battery backup in new and existing multi-family dwellings that do not exceed 60 feet in height or six stories and consist of three or more attached dwelling units. Effective date: September 2011 Madison and Milwaukee: All smoke…

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Smoke alarms are generally required in residential settings. Hard-wired smoke alarms are required in all new construction in local jurisdictions that have adopted IRC standards.

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