760 IAC 1-38.1-5.2 "Custodial parent" defined

Sec. 5.2. As used in this rule, "custodial parent" means: (1) the parent awarded custody of a child for more than one-half (1/2) of the calendar year by a court decree; or (2) in the absence of a court decree, the parent with whom the child resides more than one-half (1/2) of the calendar year without regard to any temporary visitation.