6-8(F)(1)(a) A nonconforming sign shall be allowed to continue in use, regardless of any change in ownership or occupancy of the structure, for the life of the physical sign structure in the size, height, lighting/illumination type, and configuration that existed at the time it became nonconforming, unless Subsection (b) below applies.
6-8(F)(1)(b) If 1 or more of the signatories to a Joint Sign Premises agreement withdraws from the agreement, the sign automatically becomes illegal and is subject to the provisions of Subsection 14-16-6-9(C) (Enforcement).
A nonconforming sign may be maintained, repaired, or altered, but no maintenance, repair, or alteration may increase the extent of nonconformance.
6-8(F)(3)(a) Any modification of size, height, lighting/illumination type, or configuration or any replacement of the sign face shall conform to all requirements of Section 14-16-5-12 (Signs) and all other applicable requirements of this IDO.
6-8(F)(3)(b) Conversion of a non-electronic nonconforming sign to an electronic sign is prohibited unless the erection of a new electronic sign with the same size, height, and configuration as the nonconforming sign in that location would be allowed under Subsection 14-16-5-12(H) (Electronic Signs).