A. Adopt reasonable rules and regulations pertaining to the administration of this ordinance;

B. Make modifications in individual cases on a showing of good cause with respect to the height, nature or location of the protective enclosure, or the necessity therefor, provided the protection sought by this ordinance is not reduced by the modification;

C. Permit other protective devices or structures to be used as long as the degree of protection afforded by the substitute devices or structures is not less than the protection afforded by the protective enclosure required by BC 8.05.040 and 8.05.050.