Vessels are requested to submit reservations for berth with the port of Bethel as far in advance as possible, but not less than five (5) working days prior to expected arrival, subject to final confirmation of berth arrangements forty-eight (48) hours in advance of expected time of docking. Any changes in expected time of arrival must be reported promptly. Vessels which fail to notify the port of Bethel of cancellation of a scheduled call at least five (5) working days prior to their expected arrival shall be subject to a charge of one-half (1/2) the dockage rates provided in the Bethel Tariff. [Ord. 17-11 § 2.]