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2013 Wisconsin Act 270 establishes a uniform commercial building code in Wisconsin, while allowing municipalities to grandfather fire detection, prevention, and suppression ordinances that relate to the construction, alteration, or addition to a public building or building that is a place of employment.

Grandfathered Ordinances for Lannon
Sec. 38-113. - Locations requiring installation.

Every building constructed or structurally altered after October 11, 1976, shall have an approved automatic sprinkler system installed and maintained when occupied, in whole or in part, for the following purposes:

(7) Institutional buildings and hospitals. Throughout all hospitals, nursing, convalescent, old age and other institutional buildings.

(9) Hazardous occupancies. Throughout every building which by reason of its construction or highly combustible occupancy involves a severe life hazard to its occupants or, in the judgment of the fire chief, constitutes a fire menace.

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