Montana Title 23. Parks, Recreation, Sports, and Gambling § 23-2-524. Passing rule and right-of-way

(1) When two vessels are approaching each other “head on” or nearly so (so as to involve risk of collision), each vessel shall bear to the right and pass the other vessel on its left side.

(2) When vessels approach each other obliquely or at right angles, the vessel approaching on the right side has the right-of-way.

(3) One vessel may overtake another on either side but shall grant right-of-way to the overtaken vessel.

(4) When a sailboat and motorboat are operating as to involve a risk of collision with each other, the motorboat shall yield the right-of-way to the sailboat in all cases.