Sec. 5. (a) As used in this section, "annual pass" means a card that:
(1) is issued by the department; and
(2) entitles:
(A) the card holder; and
(B) the members of the card holder's immediate family;
to enter the state parks an unlimited number of times during a calendar year without paying an admission fee.
(b) As used in this section, "nonresident" means an individual who does not reside in Indiana.
(c) The commission may set the amount of the charge for an annual pass. However, the charge for an annual pass issued to a nonresident must be higher than the charge for an annual pass issued to a resident of Indiana.