Iowa Admin. Code r. 761-607.3
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.
"Air over hydraulic brakes" means any braking system operating partially on the air brake and partially on the hydraulic brake principle.
"Automatic transmission" means any transmission other than a manual transmission.
"CDLIS" means "commercial driver's license information system" as defined in Iowa Code section 321.1.
"Commercial driver's license downgrade" or "CDL downgrade" means the same as defined in 49 CFR Section 383.5 (October 1, 2023).
"Commercial motor vehicle" or "CMV" 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.
"Hazardous materials" means any material that has been designated as hazardous under 49 U.S.C. Section 5103 and is required to be placarded under 49 CFR Part 172, Subpart F, or any quantity of a material listed as a select agent or toxin in 42 CFR Part 73.
"Manual transmission" means a transmission utilizing a driver-operated clutch that is activated by a pedal or lever and a gear-shift mechanism operated either by hand or by foot. All other transmissions, whether semi-automatic or automatic, will be considered automatic.
"Medical examiner" means a person who is licensed, certified or registered, in accordance with applicable state laws and regulations, to perform physical examinations. The term includes but is not limited to doctors of medicine, doctors of osteopathy, physician assistants, advanced registered nurse practitioners, and doctors of chiropractic.
"Medical examiner's certificate" means a certificate completed and signed by a medical examiner under the provisions of 49 CFR Section 391.43.
"Medical variance" means a driver has received one of the following from the Federal Motor Carrier Safety Administration that allows the driver to be issued a medical certificate:
"National drug and alcohol clearinghouse" means the database maintained by the Federal Motor Carrier Safety Administration as defined in 49 CFR Section 382.107 (October 1, 2023).
"Passenger vehicle" means either of the following:
"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 unless otherwise provided in Iowa Code section 321.1(69). "School bus" does not include a bus used as a common carrier.
"Self-certification" means a written certification of which category of type of driving an applicant for a commercial driver's license engages in or intends to engage in, from the following categories:
"State," as used in this chapter and 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 or the District of Columbia 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, 321.207 and 321.208.
Iowa Admin. Code r. 761-607.3