Delaware Code
Chapter 66C. Carbon Monoxide Detection Devices
§ 6603C. Carbon monoxide detection device installation.

(a) Carbon monoxide detection devices required under § 6602C(a) of this title must be installed in accordance with the rules and regulations promulgated by the State Fire Marshal's Office that must include all of the following:

(1) Single station battery-operated carbon monoxide detection devices listed for the purposes for which they are intended are permitted if both of the following conditions exist:

a. The lodging establishment was either constructed or received final approval for construction, before January 1, 2019;
b. The carbon monoxide detection devices are installed pursuant to manufacturers' specifications.
(2) Requirements will be consistent with the standards and guidelines of all of the following:

a. The recommendations and instructions provided by the manufacturer of a device.
b. Local building codes.
c. The American National Standards Institute.
(b) Carbon monoxide detection devices are not required in a dwelling unit or sleeping unit if any of the following apply:

(1) A dwelling unit or sleeping unit is located more than 1 story above or below any story that contains a fuel-burning appliance or an attached garage.
(2) A dwelling unit or sleeping unit is not connected by duct work or ventilation shafts to any room containing a fuel-burning appliance or to an attached garage.