Iowa Admin. Code r. 481—280 § 481—280.16

The provisions of this part (rules 481--280.16(10A) and
481--280.17(10A)) apply to new and existing single-family residences, single-family rental units, and
multiple-unit residential buildings. The provisions of this part do not apply to nonresidential occupancies,
including but not limited to Group I and Group E occupancies. The following definitions apply to this part:
“Building” means a combination of materials, whether portable or fixed, to form a structure affording
facilities or shelter for persons, animals, or property. “Building” includes any part of a building or an
addition to a building.
“Carbon monoxide alarm” means one or more devices, including but not limited to combination
carbon monoxide alarm/smoke alarms, that detect carbon monoxide gas for the purpose of alerting
occupants by a distinct audible signal; that incorporate a sensor, control components, and an alarm
notification appliance in a single unit operated from a power source either in the unit or obtained at
the point of installation; and that meet the standards established by the UL.
“Carbon monoxide detection system” means a system or portion of a combination system that consists
of a control unit, components, and circuits arranged to monitor and annunciate the status of carbon
monoxide alarm initiating devices and to initiate the appropriate response to those signals and that meets
the standards established by the UL.
“Communicating opening” means a door, window, or any other opening that allows air to be exchanged
between a fuel-burning appliance or garage and a sleeping unit or dwelling unit.
“Dwelling unit” means a room or suite of rooms used for human habitation that provides complete,
independent living facilities for one or more persons, including permanent provisions for living, sleeping,
eating, cooking, and sanitation.
“Existing” means buildings, facilities, or conditions that are already in existence, constructed or
officially authorized prior to July 1, 2018.
“Fuel” means coal, kerosene, oil, fuel gases, or other petroleum products or hydrocarbon products such
as wood that emit carbon monoxide as a byproduct of combustion.
“Fuel-burning” or “fuel-fired” means an appliance, heater, furnace, or fireplace that uses and combusts
fuel as part of its designed use.
“Garage” or “attached garage” means a building or portion of a building in which motor vehicles are
stored or kept.
“Listed” means equipment, materials, products, or services included in a list published by an
organization acceptable to the department or local fire code official and concerned with evaluation of
products or services that maintains periodic inspection of production of listed equipment or materials or
periodic evaluation of services and whose listing states either that the equipment, material, product or
service meets identified standards or has been tested and found suitable for a specified purpose.
“Multiple-unit residential building” means a building that contains more than two dwelling units
or sleeping units. “Multiple-unit residential building” includes but is not limited to condominiums,
townhouses, co-ops, apartment houses or portions of a building or an apartment house, hotels, motels,
dormitories, or rooming houses.
“Open-ended corridor” means an interior corridor that is open on each end and connects to an exterior
stairway or ramp at each end with no intervening doors or separation from the corridor.
“Single-family rental unit” means a building that contains not more than two dwelling units or sleeping
units that are rented or leased for living purposes.
“Single-family residence” or “single-family dwelling” means a building that contains not more than
two dwelling units that are used, or intended or designed to be used, for living purposes.
“Sleeping unit” means a room or space in a building in which people sleep, which can also include
permanent provisions for living, eating, and either sanitation or kitchen facilities but not both. Such rooms
and spaces that are also part of a dwelling unit are not sleeping units.