(a) General rule.--The registration number shown on the certificate of registration shall be painted on or attached to each side of the bow of the boat in order that it may be clearly visible. No other number may be displayed on the bow. The number shall be maintained in a legible condition.
(b) Exceptions.--The following boats are exempt from the display of registration numbers:
(1) Boats possessing a valid marine document issued by the United States Coast Guard or its successor agency.
(2) Any other boat or class of boat which the commission determines by regulation to exempt from the display of numbers upon a finding that such display is not practicable or does not aid materially in the identification of the boat and that does not conflict with Federal numbering requirements.
(c) Penalty.--A person who operates a properly registered boat that does not display a proper registration number commits a summary offense of the fourth degree.