An off-road vehicle shall not be driven or operated on any public street or sidewalk within Prince George's County. An off-road vehicle shall not be driven, or the motor allowed to run, on any private or publicly owned property unless the person using the vehicle has on his person, the express written permission of an owner or other person having jurisdiction of the property in advance of its entry onto the property. An off-road vehicle may only be operated on private property between the hours of 7 A.M. and 8 P.M. A child under the age of sixteen (16) years must be supervised by a parent or guardian while operating an off-road vehicle. Helmets must be worn by all drivers and passengers while the vehicle is being operated.