Union City, CA Sign Regulations: Digital Billboards (2026)

Unless otherwise expressly permitted elsewhere in this chapter, the following signs are prohibited in any zoning district:

A. Moving signs, animated signs, flashing signs, changeable copy signs, or any other signs with flashing light, changes in color or intensity, or moving parts, but not including flags, movie marquee signs, time/temperature signs, or gasoline price signs;

B. Strings of lights not permanently mounted to a rigid background, except those exempt under the previous section;

C. Pennants and any other wind sign, but not including flags or banners;

D. Roof signs as defined in Section 18.30.030;

E. Any portable sign, including sandwich board, "A" frame, balloon/inflatable signs, and corrugated plastic or cardboard ground-mounted signs with metal or wood frames, etc., except those signs allowed pursuant to Section 18.30.040(B), (E) or (F) or Section 18.30.060(A);

F. Signs hazardous to traffic, which are any signs with lighting or illumination of such intensity, color or contrasting brilliance as to cause confusion or glare to impair the vision of any person traveling on a public or private way, or which otherwise interfere with any person's operation of a vehicle;

G.