Which of the following are legal exemptions for not wearing a seat belt?

• Passengers in a vehicle manufactured after July 1, 1966
• Passengers in a vehicle that is not required to be equipped with seat belt systems under federal law
• Passengers with a physical or medical reason, verified in writing by a licensed physician
• All of the above
  Explanation:

  "Seat belt exemptions apply to vehicles made before July 1, 1966, vehicles not mandated by federal law to have seat belts, or individuals with a documented medical condition from a doctor that prevents the use of a seat belt."