§ 76. Regulations with respect to clearance. No commercial float shall proceed beyond the place to which it is cleared, nor unload any of its cargo, before or after its arrival, at the place from which such articles are cleared, nor proceed beyond such place until the master thereof delivers the clearance of such float or articles to the person designated by the corporation to receive the same, at the place for which they are cleared. If there is no canal official at such place, then to the canal official whose office shall be passed by the float in the order of its voyage, and receive permission from such canal official to proceed to the place to which it is cleared.