Notwithstanding any provisions of this chapter to the contrary, all signs erected following the effective date of these regulations shall comply with all the provisions of these regulations.  All signs which are in existence on the effective date of these regulations and which do not conform with the standards of this chapter shall be considered nonconforming uses and shall be subject to the following provisions:
   A.   No nonconforming sign shall be structurally altered so as to change the shape, size, type or design of the sign, nor shall any nonconforming sign be relocated.
   B.   All signs designed to be attached to, supported by or part of a structure which is designed to be moved on wheels, skids or other similar devices, or transported, pushed or pulled by a motor vehicle, shall be considered nonconforming signs and shall be removed within one (1) year from the date of adoption of this chapter. 
(Ord. 98-176.  Passed 8-3-98; Ord. 2004-136.  Passed 9-20-04.)