A. To establish a permit system that allows a variety of types of signs on business premises and a limited variety of signs on other premises, subject to this Ordinance and its permit procedures;

B. To allow certain small, unobtrusive signs incidental to the principal use of a site without a permit if such signs meet the substantive requirements of this Ordinance;

C. To prohibit off-premise advertising signs, except where regulation is controlled by state or federal law;

D. To allow a variety of types of noncommercial signs subject to the same substantive and permit requirements that control on-premise signs;

E. To allow certain types of signs to make minor encroachments of the public right-of-way, if specially permitted; and

F. To prohibit all signs not expressly permitted by this Ordinance.