Trans 101.02(1)(j)(j) Speeding 20 miles per hour or more in excess of lawful or posted speed. Trans 101.02(2)(2) Four demerit point violations. The department shall assess 4 demerit points for any of the following violations: Trans 101.02(2)(e)(e) Failure by operator to stop for school bus when red lights are flashing. Trans 101.02(2)(f)(f) Failure to yield right of way or failure to yield right of way to emergency vehicle. Trans 101.02(2)(i)(i) Speeding more than 10 miles per hour but less than 20 miles per hour in excess of lawful or posted speed. Trans 101.02 NoteNote: Unnecessary acceleration is a valid traffic regulation. City of Janesville v. Garthwaite, 83 Wis. 2d 866 (1978). Trans 101.02(2)(k)(k) Under age 21, operating motor vehicle with any measured alcohol concentration. Trans 101.02(3)(3) Three demerit point violations. The department shall assess 3 demerit points for any of the following violations: Trans 101.02(3)(a)(a) Violation of a restriction on a graduated driver license related to the time or route of travel or passengers permitted. Trans 101.02 NoteNote: This includes arterial signs, one-way signs or traffic signs or signals. See s. 340.01 (38), Stats. Trans 101.02(3)(i)(i) Improper or unlit or missing lamps or lights, including clearance lamps, spotlamps, headlamps, brake lamps, tail lamps and signal lamps, but not including registration plate lamps or failure to use cycle headlamps during daylight hours. Trans 101.02(3)(k)(k) Operating without having obtained an operator’s license, without a proper license endorsement, without proper license classification for the vehicle being operated, or with a license which has expired, and including the following: Trans 101.02(3)(k)1.1. Operating a commercial motor vehicle without having obtained a commercial driver license.