Va. Code § 29.1-744.4
After providing notice to the Department, any locality may, by ordinance, establish "pass-through" zones in any portion of a waterway within its territorial limits where congestion of watercraft traffic routinely poses a significant safety risk to persons in such designated area. The ordinance shall provide that while in a pass-through zone, operators of watercraft shall maintain a reasonable and safe speed and shall be prohibited from stopping, anchoring, loitering, or otherwise engaging in recreational activity. The locality shall clearly identify pass-through zones by buoys or other markers that conform to the general requirements as established by the Board for similar buoys or markers. The locality may provide for enforcement and penalties, not to exceed a Class 4 misdemeanor, for the violation of the ordinance.
Va. Code § 29.1-744.4