The following categories of signboard are tax exempt:
(a) for public places or organizations owned by the government;
(b) for private schools within the compound of the schools;
(c) for religious bodies or charitable organizations and associations;
(d) erected within the area of occasional fairs;
(e) displayed in theatres or movie houses which publicize shows;
(f) on products or containers;
(g) that are confined to the internal place of a business;
(h) farmers’ produce signs; and
(i) attached to a vehicle, man or animal.