‘Sec. 1. 29-A MRSA §2057-A, as enacted by PL 2003, c. 633, §6, is amended to read:
§ 2057-A. Preemptive traffic light devices prohibited
(1) The signal, in the direction of travel of the vehicle, to remain green if the signal is already displaying a green light or to change from red to green if the signal is displaying a red light;
(2) The signal, in other directions of travel, to remain red or change to red, as applicable, to prevent other vehicles from entering the intersection; and
(3) The applicable functions described in subparagraphs (1) and (2) to continue until the vehicle equipped with the device is clear of the intersection.
(1) The signal, in the direction of travel of the vehicle, to display a green light sooner than the green light would otherwise be displayed;
(2) The signal, in the direction of travel of the vehicle, to display a green light longer than the green light would otherwise be displayed; and
(3) The applicable functions described in subparagraphs (1) and (2) to continue until the vehicle equipped with the device is clear of the intersection.
A vehicle under paragraph B, C or D may not operate a signal prioritization device in a manner that impedes or interferes with the use of a signal prioritization device by a vehicle under paragraph A. A vehicle under paragraph C may not operate a signal prioritization device in a manner that impedes or interferes with the use of a signal prioritization device by a vehicle under paragraphs B and D.’