Indiana Code Title 35. Criminal Law and Procedure § 35-47-8.5-2

Sec. 2. (a) If the certification of a chief law enforcement officer is required by federal law for the transfer or manufacture of an NFA firearm, the chief law enforcement officer shall issue the certification not later than fifteen (15) days after receipt of a completed request for certification, unless the applicant is:

(b) A chief law enforcement officer may deny a request for certification only:

A chief law enforcement officer may not deny a request for certification based on a generalized objection to private persons or entities manufacturing, transferring, or receiving a firearm or an NFA firearm if the possession of the firearm or NFA firearm is not otherwise prohibited by law.

(c) If the chief law enforcement officer denies a request for certification under this section, the chief law enforcement officer shall provide the applicant with a written notification of the denial and the reason for the denial.  If the chief law enforcement officer denies a request for certification because the request is not complete, the chief law enforcement officer shall set forth, in detail, why the request is not complete.  An applicant whose request for certification is denied because it is not complete may reapply or amend the existing request by supplying the required information.