§ 255-156.   Nonconforming signs.
   A.    legally in existence at the time of the adoption of this article that do not conform to the requirements of this article shall be considered   .
   B.   All such   shall be removed or altered so as to be in conformity with the standards contained in this Code at such time when:
      (1)   Upper Dublin Township approves an application for a   in cases where more than 50% of the of the   is to be significantly altered. Changes to the copy or the replacement of a panel of an existing establishment's   shall not be considered a significant alteration. If more than 50% of the of a is damaged, it shall be repaired to conform to this article.
      (2)   An application requiring municipal review and approval for a or land is submitted for property on which the   is located.
   C.   To determine the legal status of existing , in each of the two cases listed in § 255-156B, the applicant shall submit the following information to the Township Director of Code Enforcement:
      (1)   Type(s) of existing (s) located on the property.
      (2)   The area and height of all .
      (3)   For , the distance the outer most portion of the is set back from the curbline or shoulder.
      (4)   Type of illumination.
      (5)   The material of which the is constructed.
      (6)   The length along public frontage.
   D.   Prior to the events listed in § 255-156B,   may be repainted, repaired up to 50% of the of the , the copy may be changed or panels may be replaced, provided that such actions do not increase the dimensions of the existing nor in any way increase the extent of the sign's nonconformity.
   E.   Under the following conditions,   shall be exempt from the provisions of § 255-156B:
      (1)   The   possesses documented historic value.
      (2)   The   is of an unique nature or type by virtue of its architectural value or design.