(625 ILCS 45/5-13)
(from Ch. 95 1/2, par. 315-8)
A. Passing. When 2 boats are approaching each other "head on" or
nearly so (so as to involve risk of collision), each boat must bear to the
right and pass the other boat on its left side.
B. Crossing. When boats approach each other obliquely or at right
angles, the boat approaching on the right side has the right of way.
C. Overtaking. One boat may overtake another on either side but must
grant right of way to the overtaken boat.
D. Sailboats and Rowboats. When a motorboat is approaching a boat
propelled solely by sails or oars, the motorboat must yield the right of
way to the sailboat or rowboat except, when a large craft is navigating in
a confined channel, the large craft has the right of way over a boat
propelled solely by oars or sails.
(Source: P.A. 82-783.)