Ind. Code § 31-14-13-10

Sec. 10. If an individual who has been awarded custody of or parenting time with a child under this article (or IC 31-6-6.1-11 before its repeal) intends to move the individual's residence, the individual must:

(1) file a notice of that intent with the clerk of the court that issued the custody or parenting time order; and

(2) send a copy of the notice to each nonrelocating individual in accordance with IC 31-17-2.2.