Iowa Admin. Code r. 571-46.1
For purposes of this chapter, the following definitions shall apply:
"All-terrain vehicle" means a motorized flotation-tire vehicle with not less than three and not more than six low-pressure tires that is limited in engine displacement to less than 1,000 cubic centimeters and in total dry weight to less than 1,000 pounds and that has a seat or saddle designed to be straddled by the operator and handlebars for steering control.
"A scale" means the physical scale marked "A" and graduated in decibels on a sound level meter which meets the requirements of the American National Standards Institute, Incorporated, publication SI.4-1983, General Purpose Sound Level Meters.
"Commission" means the natural resource commission established in Iowa Code section 455A.5.
"Department" means the department of natural resources established in Iowa Code section 455A.2.
"Designated riding area" means an off-highway vehicle riding area on any public land or ice under the jurisdiction of the department that has been designated by the commission under Iowa Code chapter 3211 for such use.
"Designated riding trail" means an off-highway vehicle riding trail on any public land or ice under the jurisdiction of the department that has been designated by the department for all-terrain vehicle use.
"Off-road motorcycle" means a two-wheeled motor vehicle that has a seat or saddle designed to be straddled by the operator and handlebars for steering control and that is intended by the manufacturer for use on natural terrain. "Off-road motorcycle" includes a motorcycle that was originally issued a certificate of title and registered for highway use under Iowa Code chapter 321, but which contains design features that enable operation over natural terrain.
"Off-road utility vehicle" means a motorized flotation-tire vehicle with not less than four and not more than eight low-pressure tires that is limited in engine displacement to less than 1,500 cubic centimeters and in total dry weight to not more than 1,800 pounds and that has a seat that is of bucket or bench design, not intended to be straddled by the operator, and a steering wheel or control levers for control. A motorized vehicle that was previously titled or is currently titled under Iowa Code chapter 321 shall not be registered or operated as an off-road utility vehicle.
"Operator" means a person who operates or is in actual physical control of a regulated vehicle.
"Owner" means a person, other than a lienholder, having the property right in or title to an all-terrain vehicle. "Owner" includes a person entitled to the use or possession of an all-terrain vehicle subject to an interest in another person, reserved or created by agreement and securing payment or performance of an obligation. "Owner" excludes a lessee under a lease not intended as security.
"Public land" means land owned by the federal government, the state of Iowa, or a political subdivision of the state and land acquired or developed for public recreation pursuant to Iowa Code section 3211.8.
"Regulated vehicle" means all-terrain vehicles, off-road motorcycles, and off-road utility vehicles, either collectively or individually.
"Roadway" means that portion of a highway improved, designed, or ordinarily used for vehicular travel.
Iowa Admin. Code r. 571-46.1