Maine Revised Statutes Title 29-A. Motor Vehicles § 1921. Viewing of visual content restricted in vehicles

1. Global positioning, navigation or mapping system. A device displaying video content for the purpose of a global positioning, navigation or mapping system;

2. Closed-circuit video monitor. A closed-circuit video monitor that is used to assist the operator while backing up or parking;

3. Device when vehicle is stationary. A device that is capable of operation only when the vehicle is stationary and is automatically disabled whenever the wheels of the vehicle are in motion;

4. Device to enhance operator's view. A device that is used to enhance or supplement the operator's view of the roadway or to assist the operator in object detection; and

5. Part of vehicle's instrumentation. A video display unit that is part of the vehicle's instrumentation or is used for the purpose of vehicle control.

This section does not apply to the use of a video device in the performance of official duties by a law enforcement officer or the operator of an authorized emergency vehicle, as defined in section 2054.