Low speed vehicles are prohibited on Maryland highways as defined in Transportation Article, §21-1125, Annotated Code of Maryland. Low speed vehicles may not be driven: On a highway for which the posted maximum speed limit exceeds 30 miles per hour; On an expressway or any controlled access highway on which prohibitions are posted in accordance with Transportation Article, §21-313, Annotated Code of Maryland; On a highway on which driving a low speed vehicle is prohibited by a county or municipal ordinance; or Across a highway for which the posted maximum speed limit exceeds 45 miles per hour, except at an intersection that is controlled by: A traffic control signal; or A stop sign at each approach to the intersection. Low speed vehicles may not be used for skills testing to obtain a driver license.