761—607.18(321) Restrictions. The restrictions that may limit commercial motor vehicle operation with a commercial driver’s license are listed in 761—subrule 605.8(3) and are explained below:
	607.18(1) Air brake. The air brake restriction (L, no air brake equipped CMV) applies to a licensee who either fails the air brake component of the knowledge test or performs the skills test in a vehicle not equipped with air brakes and prohibits the operation of a commercial motor vehicle equipped with an air brake system until the licensee passes the required air brake tests and pays the fee for upgrading the license. Retesting and fee payment are not required when the license is renewed.
	607.18(2) Full air brake. The full air brake restriction (Z, no full air brake equipped CMV) applies to a licensee who performs the skills test in a vehicle equipped with air over hydraulic brakes and prohibits the operation of a commercial motor vehicle equipped with any braking system operating fully on the air brake principle until the licensee passes the required air brake tests and pays the fee for upgrading the license. Retesting and fee payment are not required when the license is renewed.
	607.18(3) Manual transmission. The manual transmission restriction (E, no manual transmission equipped CMV) applies to a licensee who performs the skills test in a vehicle equipped with automatic transmission and prohibits the operation of a commercial motor vehicle equipped with a manual transmission until the licensee passes the required tests and pays the fee for upgrading the license. Retesting and fee payment are not required when the license is renewed.
	607.18(4) Tractor-trailer. The tractor-trailer restriction (O, no tractor trailer CMV) applies to a licensee who performs the skills test in a combination vehicle for a Class A commercial driver’s license with the power unit and towed unit connected with a pintle hook or other non-fifth wheel connection and prohibits operation of a tractor-trailer combination connected by a fifth wheel that requires a Class A commercial driver’s license until the licensee passes the required tests and pays the fee for upgrading the license. Retesting and fee payment are not required when the license is renewed.
	607.18(5) Class A passenger vehicle. The Class A passenger vehicle restriction (M, no Class A passenger vehicle) applies to a licensee who applies for a passenger endorsement and performs the skills test in a passenger vehicle that requires a Class B commercial driver’s license and prohibits operation of a passenger vehicle that requires a Class A commercial driver’s license.
	607.18(6) Class A and B passenger vehicle. The Class A and B passenger vehicle restriction (N, no Class A and B passenger vehicle) applies to a licensee who applies for a passenger endorsement and performs the skills test in a passenger vehicle that requires a Class C commercial driver’s license and prohibits operation of a passenger vehicle that requires a Class A or Class B commercial driver’s license.
	607.18(7) Intrastate only. The intrastate only restriction (K, intrastate only) applies to a licensee who self-certifies to non-excepted intrastate or excepted intrastate driving and prohibits the operation of a commercial motor vehicle in interstate commerce.
	607.18(8) Medical variance. The medical variance restriction (V, medical variance) applies to a licensee when the department is notified pursuant to 49 CFR Section 383.73(o)(3) that the driver has been issued a medical variance and indicates there is information about a medical variance on the CDLIS driver record.
This rule is intended to implement Iowa Code sections 321.189 and 321.191.
[ARC 2071C, IAB 8/5/15, effective 7/14/15; ARC 2337C, IAB 1/6/16, effective 2/10/16; ARC 2530C, IAB 5/11/16, effective 6/15/16; ARC 4586C, IAB 7/31/19, effective 9/4/19]