Carbon monoxide alarms are required in newly built one- and two-family homes and townhomes. CO alarms also are required in cases where alterations, repairs or replacement of electrical systems require permits.

Indianapolis-Marion County:

CO alarms are required outside of each separate sleeping area in the immediate vicinity of the bedrooms in all newly constructed one and two-family dwellings and town homes not more than three stories.

Effective date: January 2017


CO alarms are required in new residential construction.

Effective date: May 2017