A. When such minor is possessing or using such weapons on a gun range operated or conducted by any school, educational institution or other regulated group, pursuant to rules and regulations provided by the chief of police or city ordinance and licensed by the city;

B. When such minor is possessing or using such air gun within a regulated or supervised course or range provided by the city park department, under regulations or ordinances duly promulgated and adopted thereof;

C. When any such minor is carrying such weapon, unloaded and otherwise properly dismantled, to and from such licensed or authorized course; or

D. When such minor has obtained a certificate of proficiency from the chief of police under the rules and regulations promulgated by the chief of police to ensure the safe handling of such toys or weapons by such minor, or when confined to an area within the property of the parents of such minor which complies with the regulations relating to private practice or target ranges as promulgated by the chief of police; provided, further, that the provisions of MMC 9.18.060(B) shall not prohibit the use of such weapons by a person over sixteen years of age when such use is reasonably necessary and represents reasonable force in the protection of the person or property of the user or another. (Ord. 628, 1976)