No garbage shall be collected at, or transported from, any vessel or aircraft except for immediate disposal by a method described in Section 774 without removal from the dock, pier, mole, or airport, unless the person, firm, or corporation collecting or transporting such garbage holds a valid license issued by the Director or by the United States Department of Agriculture permitting such collection or transportation to an incinerator or grinder, or for movement to sea for dumping as herein provided. All garbage so collected, transported, or otherwise moved from the dock, pier, mole or airport shall be in tight containers.