Indiana Code Title 8. Utilities and Transportation § 8-23-20-25.5

Sec. 25.5. (a) The department may adopt rules under IC 4-22-2 that provide for the issuance of a permit for a changeable message sign erected, operated, used, or maintained in areas described in section 25(a) of this chapter.

(b) A permit authorized by this section may not otherwise violate state or federal law or local ordinances or regulations.

(c) Until the department adopts rules under this section, a person may erect, operate, or use a changeable message sign in an area described in section 25(a) of this chapter, subject to any other requirements of state or federal law or local ordinances or regulations.

(d) This subsection applies to a changeable message sign erected after the owner or operator receives a permit from the department.  Notwithstanding any rules adopted by the department after the issuance of the permit, a changeable message sign that is in compliance with the rules in effect at the time a permit is granted for the changeable message sign is considered to be in compliance with the department's rules.