Md. Code, Transportation § 22–414

(a) A motor vehicle driven on a highway in this State may not be equipped with television–type receiving equipment that is turned on and displaying an image visible to the driver.

(b) This section does not prevent:

(1) The use of television–type receiving equipment in a vehicle exclusively for safety or law enforcement purposes, as approved by the Department of State Police;

(2) The use in a vehicle of equipment used exclusively for alphanumeric data and text transmission and reception; or

(3) The use in a vehicle of electronic display equipment:

(i) Used in conjunction with:

1. A vehicle navigation system; or

2. Broadcast and satellite radio system graphics; or

(ii) Displaying information or images related to the operation or safety of a motor vehicle.