A. Any person who operates or rides a bicycle or recreational vehicle or horse in or upon any public area shall wear a helmet. The helmet shall have either the neck- or chin-strap fastened securely while the bicycle or recreational vehicle is in motion.

B. No person shall tow or transport a person on a bicycle or recreational vehicle in or upon any public area, unless the person is wearing a helmet.

C. A parent or guardian shall be responsible for requiring that a child under the age of 18 years wears a helmet, the neck- or chin-strap of which must be fastened securely, while that child is on a bicycle or recreational vehicle in motion, in any public area in the city.

D. A rider is exempted from the requirements of this chapter if the rider has in his or her possession a letter or memo signed by a medical doctor licensed in the state of Washington indicating that the use of any helmet is harmful to the health or safety of the rider. (Ord. 2001-06 § 1, 2001)