(A) Signs existing at the time of the enactment of this chapter and not conforming to its provisions shall be regarded as nonconforming signs which may be continued for a period of time not exceeding the remaining, or undepreciated, useful life of the sign, based on the formula used in the depreciation schedule in the income tax returns of the owner of the sign, or any other reasonable formula which will provide an adequate period for the depreciation of the sign, not exceeding ten years beyond the effective date of these regulations.
(B) Nonconforming signs which are structurally altered, relocated, or replaced shall comply immediately with all provisions of this section.
(Ord. 87-477, passed 4-6-1987)