761—607.3 (321) Definitions. The definitions in Iowa Code section 321.1 apply to this chapter of rules. In addition, the following definitions are adopted:
“Air brake system” means a system that uses air as a medium for transmitting pressure or force from the driver’s control to the service brake. “Air brake system” shall include any braking system operating fully or partially on the air brake principle.
“Commercial motor vehicle” as defined in Iowa Code section 321.1 does not include a motor vehicle designed as off-road equipment rather than as a motor truck, such as a forklift, motor grader, scraper, tractor, trencher or similar industrial-type equipment. “Commercial motor vehicle” also does not include self-propelled implements of husbandry described in Iowa Code subsection 321.1(32).
“Controlled substance” as used in Iowa Code section 321.208 means a substance defined in Iowa Code section 124.101.
“Passenger vehicle” means either of the following:
	  1. 	 A motor vehicle designed to transport 16 or more persons including the operator.
	  2. 	 A motor vehicle of a size and design to transport 16 or more persons including the operator which is redesigned or modified to transport fewer than 16 persons with disabilities. The size of a redesigned or modified vehicle shall be any such vehicle with a gross vehicle weight rating of 10,001 or more pounds.
“School bus” means a commercial motor vehicle used to transport pre-primary, primary, or secondary school students from home to school, from school to home, or to and from school-sponsored events. “School bus” does not include a bus used as a common carrier.
“State,” as used in “another state” in Iowa Code subsection 321.174(2), “Former state of residence” in Iowa Code subsection 321.188(5), or “any state” in Iowa Code subsection 321.208(1), means one of the United States, the District of Columbia, a Canadian province or a Mexican state unless the context means the state of Iowa.
This rule is intended to implement Iowa Code sections 321.1, 321.174, 321.188, 321.191, 321.193 and 321.208.
[ARC 7902B, IAB 7/1/09, effective 8/5/09]