Which of the following is a valid exemption for seatbelt laws?

The valid exemption for seatbelt laws is being medically excused with a doctor's note. In Indiana, individuals who have specific medical conditions that prevent them from safely wearing a seatbelt may be exempt from the law, provided they have appropriate documentation, such as a doctor's note. This exemption recognizes that some medical conditions may significantly hinder a person's ability to fasten a seatbelt without causing harm or discomfort.

The other options do not qualify as valid exemptions under Indiana law. Driving without a license is a violation of traffic regulations and does not relate to seatbelt laws. Professional athletes are not given any specific exemption from wearing seatbelts simply due to their profession; the law applies to everyone equally regardless of their career. Similarly, carrying large cargo does not exempt a driver or passenger from wearing a seatbelt, as the law mandates seatbelt use for safety regardless of the vehicle's load. Therefore, the only appropriate exemption in this context is for those with medical reasons supported by a doctor's note.