(1) A nonconforming sign shall not be altered in height, shape, size, lighting/illumination, or affect the base or support without conforming with the provisions of this chapter. No off-premises sign shall add electronic/digital components to a sign and existing electronic/digital signs shall be no greater than 0.3 foot candles above ambient light (includes day and night) and shall remain static for a minimum of 10 seconds, changing instantaneously to avoid startling flashing of lights, and shall transition without animation;

(2) A nonconforming sign may be maintained as long as the nonconformity of the sign is not increased;

(3) Properties with nonconforming signage shall only be allowed new or replacement signage requiring a permit after an equivalent number of nonconforming signs on the property are brought into conformance with standards of this chapter.