If a passenger refuses to wear a seat belt where one is provided, what does RSA guidance say about bus and taxi drivers?

1. They are not obliged to carry a passenger who refuses to wear an available seat belt
2. They must carry the passenger but should record the refusal in the operator's journey log
3. They may refuse a child, but must carry an adult who accepts responsibility for not using the belt
4. They must check that each adult has fastened the belt before the bus can leave the stop