(1) Official signs must be erected and maintained by a public officer or agency.

(2) Official signs must be erected within the territorial jurisdiction or zoning jurisdiction of the public officer or agency. This means that the officer or agency must exercise some form of governmental authority over the area upon which the sign is located.

(3) Official signs must be erected pursuant to direction or authorization contained in federal, state, or local law. This means that the officer must be directed by statute and/or must have the specific authority by statute to erect and maintain signs and notices.

(4) Local governments may erect, within the limits of their jurisdiction, official signs welcoming travelers and describing the services and attractions available, but may not advertise private business or brand names.

(5) Not more than one official sign welcoming visitors or providing information about a community is allowed on each highway entering the community, subject to federal and state outdoor advertising control (OAC) rules.

(6) On interstate highways, official “welcome to” signs may be erected within five miles of a community. Not more than one “welcome to” sign in each direction is allowed.

(7) An official sign of a local government will not be considered in determining the spacing required between conforming outdoor advertising signs located off premises.