Ind. Code § 6-6-11-24
The taxpayer shall affix the boat excise tax decals:
(2) on each side of the forward half of the bow above the water line of the boat if a registration number is not required to be displayed.
However, the department of natural resources may adopt rules under IC 4-22-2 providing that decals do not have to be affixed to certain types of boats.
As added by P.L.98-1989, SEC.1.