343.04(1)(c)2.2. The vehicle is transporting hazardous materials requiring placarding or any quantity of a material listed as a select agent or toxin under 42 CFR 73.

343.04(2)(2) Vehicle types. For purposes of this chapter, certain vehicles intended to carry school children or other passengers, or having special operating characteristics, are divided into the following vehicle types specified in pars. (a) to (f):

343.04(2)(a)(a) Hazardous materials transporter. Hazardous materials transporter vehicles are vehicles transporting hazardous materials requiring placarding or any quantity of a material listed as a select agent or toxin under 42 CFR 73.

343.04(2)(b)(b) Full air brakes equipped. Full air brakes equipped vehicles are commercial motor vehicles equipped with a braking system operating fully on the air brake principle.

343.04(2)(bm)(bm) Partial air brakes equipped. Partial air brakes equipped vehicles are commercial motor vehicles equipped with a braking system operating partially on the air brake principle and partially on the air over hydraulic brake principle.

343.04(2)(d)(d) Passenger carrying. Passenger-carrying vehicles are motor vehicles designed to carry, or actually carrying, 16 or more passengers, including the driver.

343.04(2)(f)(f) Vehicles towing double or triple trailers. Vehicles towing double or triple trailers are commercial motor vehicles with double or triple trailers.

343.05(1)(a)(a) Except as provided in this subsection, no person may at any time have more than one operator’s license. This prohibition includes, without limitation, having licenses from more than one state, having licenses under more than one name or birthdate, and having more than one license issued for the operation of different types or classes of vehicles. This paragraph does not apply to any person who has only operator’s licenses issued by this state and by a country, province, or subdivision that is a party to an agreement under s. 343.16 (1) (d).

343.05(1)(c)(c) A person may have both an operator’s license and a duly issued instruction permit allowing restricted operation of a vehicle group not authorized by the license.

343.05(2)(a)(a) No person may operate a commercial motor vehicle upon a highway in this state unless the person is one of the following:

343.05(2)(a)1.1. A resident who is at least 18 years of age, who is not disqualified under s. 343.315, who has a valid commercial driver license which is not revoked, suspended, canceled or expired and, for the operation of any vehicle type under s. 343.04 (2), has an endorsement authorizing operation of the vehicle type.

343.05(2)(a)2.2. A nonresident who has in his or her immediate possession a valid commercial driver license issued to the person in another jurisdiction or Mexico bearing all endorsements required for the specific class and type of vehicle being operated. A license is not valid under this subdivision if the license is restricted to operation inside the person’s home jurisdiction, or if the person is otherwise violating restrictions or exceeding operating authorization stated on the person’s license. If the nonresident is operating a commercial motor vehicle in interstate commerce, he or she must be at least 21 years of age.

343.05(2)(a)4.4. A person with a temporary license under s. 343.305 (8) (a) which expressly authorizes the operation of the applicable class and type of commercial motor vehicle and which is not expired.

343.05(2)(b)(b) This subsection does not apply to a person whose operation of a commercial motor vehicle is subject to waiver under s. 343.055.

343.05(2)(c)(c) A tow truck operator holding a valid commercial driver license who is engaged in the removal of a disabled or wrecked vehicle from the highway or eliminating a hazard is not required to hold an endorsement to his or her commercial driver license regardless of the type of vehicle being towed. This exception to the requirement for an endorsement does not apply to any subsequent towing of the vehicle, including moving the vehicle from one repair facility to another, unless one of the following applies: