Carbon monoxide-detector law starts July 1 - Denver Business Journal:

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The alarms are mandatory becauses of HouseBill 1091, passed by the Coloradok Legislature this year and signed into law by Gov. Bill Ritterd in March. The new law relatews to houses that are for sale and rentalp housing such as apartments that are leased tonew tenants. It requires that sellers/landlords of such homea provide well-functioning carbon monoxide alarmsnear bedrooms, if the home has the • attached garage. Mobile and manufactured homes also are coveredr bythe law. Any building permit issued for the construction of a new home or upgradews to an existing home is subject to the same Alarm installation costs anestimated $40 per unit, accordingb to the state.
Colorado enacted the alarm law partl y because of several deaths attributed to carbon monoxide poisoning from Novembefr 2008 to the end of last including a Denver family spending the Thanksgivingv holidayin Aspen. Roughly 170 peopld a year die in the United Statesw from carbon monoxide produced bymalfunctioning fuel-burning appliancezs such as furnaces, stoves and water heaters, according to SAFEbuil Colorado. Thousands more receive emergency treatment. SAFEbuilt Colorado, part of SAFEbuilty Inc. of Loveland, contracts with several Colorado municipalitiez to perform services such as building inspectiona andplan reviews.