Indiana Code Title 13. Environment § 13-18-22-8

Sec. 8. (a) The department shall make a decision to issue or deny an individual permit under section 3 of this chapter not later than ninety (90) days after receipt of the completed application.  If the department fails to make a decision on a permit application by the deadline under this subsection or subsection (d), a permit is considered to have been issued by the department in accordance with the application.

(b) A general permit under section 4 of this chapter becomes effective with respect to a proposed wetland activity that is within the scope of the general permit on the thirty-first day after the department receives a notice of intent from the person proposing the wetland activity that the wetland activity be authorized under the general permit.

(c) The department must support a denial under subsection (a) by a written statement of reasons.

(d) The department may notify the applicant that the completed application referred to in subsection (a) is deficient.  If the department fails to give notice to the applicant under this subsection not later than fifteen (15) days after the department's receipt of the completed application, the application is considered not to have been deficient.  After receipt of a notice under this subsection, the applicant may submit an amended application that corrects the deficiency.  The department shall make a decision to issue or deny an individual permit under the amended application within a period that ends a number of days after the date the department receives the amended application equal to the remainder of: