Indiana Code Title 14. Natural and Cultural Resources § 14-15-3-14

(1) When two (2) boats are approaching each other “head and head”, or nearly so, each boat shall bear to the right and pass the other boat on the boat's left side.

(2) When two (2) boats are approaching each other obliquely or at right angles, the boat on the right has the right-of-way.  However, when:

(3) A boat operated on a river or a channel shall bear to the right.

(4) A boat may overtake and pass another boat on either side if the passing can be done with safety and within the assured clear distance ahead, but the boat overtaken has the right-of-way.

(5) A boat leaving a dock, a pier, a wharf, or the shore has the right-of-way over all boats approaching the dock, pier, wharf, or shore.