Vehicles, except motorcycles, trailers and semi trailers, must have right and left-turn signals:

• On the front and rear that must be visible from 300 feet
  Explanation:

  "Vehicles, except motorcycles, trailers and semi trailers, must have right and left-turn signals on the front and rear visible from 300 feet."
• Only on the front that must be visible from 400 feet
• Only on the rear that must be visible from 500 feet
• On the front and rear that must be visible from 600 feet