Ind. Code § 25-42.5-6-1

Sec. 1. Active duty military personnel or their spouses shall designate a home state where the individual has a current license in good standing. The individual may retain the home state designation during the period the service member is on active duty. Subsequent to designating a home state, the individual shall only change their home state through application for licensure in the new state or through the process outlined in IC 25-42.5-5.