(a) Requirement and time. Except as otherwise provided, the consignee of imported merchandise shall make entry therefor either in person or by an agent authorized by him in writing to the Customs House within 48 hours, exclusive of Sundays and holidays, after the entry of the importing vessel, unless the collector authorized in writing, a legal time.

(b) Packages included. If any of the certificates or documents necessary to make entry of any part of merchandise arriving on one vessel and consigned to one consignee have not arrived, such part may be entered subsequently, and notation of the packages or cases to be omitted from the original entry shall be made thereon. One or more packages arriving on one vessel addressed for delivery to one person and imported in another package containing packages addressed for delivery to other persons may be separately entered. All other merchandise arriving on one vessel and consigned to one consignee shall be included in one entry.

(c) Entry on carrier’s certificate. Any person certified by the carrier bringing the merchandise to the port at which entry is to be made, to be the owner or consignee of the merchandise, or an agent of such owner or consignee, may make entry thereof either in person or by an authorized agent.

(d) Entry on duplicate bill of lading. Any person may, upon the production of a duplicate bill of lading signed or certified to be genuine by the carrier bringing the merchandise to the port at which entry is to be made, make entry for the merchandise in respect of which such bill of lading is issued, except that such person shall make such entry in his own name.

SOURCE: GC § 47102.