Indiana Code Title 36. Local Government § 36-7-2.5-20

(1) an applicant indicates on the application that the unit will perform the plan review or inspection;

(2) the unit notifies the applicant under section 18 of this chapter that the unit is unable to perform a plan review or inspection within the time required;  and

(3) the applicant elects instead to use a private provider to perform the plan review or inspection;