Indiana Code Title 8. Utilities and Transportation § 8-21-10-5

Sec. 5. In any instance where the department learns or has reasonable grounds to believe that any person is erecting or adding to a structure that would be subject to this chapter, but concerning which no application for a permit has been filed, the department may on its own motion issue an order to such person to appear before the department and show cause why an application for a permit to erect or add to the structure need not be obtained.  A date for a hearing on the order shall be set out in such order.