[§286-235]  Commercial driver's license required.  (a)  No person shall drive a commercial motor vehicle unless the person holds a valid commercial driver's license and valid applicable endorsements for the vehicle the person is driving, except when driving under a commercial driver's instruction permit and accompanied by the holder of a valid commercial driver's license for the vehicle being driven.

     (b)  No person shall drive a commercial motor vehicle while the person's driver's license or permit is suspended, revoked, or canceled, or while subject to a disqualification, or in violation of an out-of-service order.

     (c)  Any person who holds a category (4), (5), (6), (7), (8), (9), or (10) license that is valid on March 31, 1991, may continue to drive with that license until that person's next birthday, at which time the person shall be permitted to continue to drive only if the person obtains either a commercial driver's license or a reclassified category (4) license under section 286-102(b). [L 1989, c 320, pt of §2; am L 1990, c 342, §6]