Fla. Stat. § 553.885:
CO detection devices are required in new commercial buildings where a portion thereof is used for sleeping purposes, including hospitals, hospice facilities, and nursing homes. (Effective date: July 1, 2007)
Fla. Stat. § 509.211:
Lodging Establishments: Every enclosed space or room that contains a boiler which is fired by the direct application of energy from the combustion of fuels and that is located in any portion of a public lodging establishment that also contains sleeping rooms shall be equipped with one or more carbon monoxide sensor devices.
2013 Florida Building Code, Residential
:
The International Residential Code requires new one- and two-family homes and townhomes (dwellings) of not more than three stories to install CO alarms in the general vicinity of each sleeping area. (Effective since adoption of 2009 IRC)