Ind. Code § 14-15-6-2.5
(a) Each boat that carries passengers upon public water for hire must have:
(2) an underwater survey;
of the exterior portion of the boat that is below the waterline at least one (1) time every sixty (60) months. However, an underwater survey may only be used to satisfy the requirements of this chapter one (1) time every one hundred twenty (120) months.
As added by P.L.164-2020, SEC.49.