18.10—Kinds of entry.
(b)
The copy of each entry or withdrawal made in any of the classes named in paragraph (a) of this section which is retained in the office of the forwarding port director shall be signed by the party making the entry or withdrawal. In the case of shipments to the Virgin Islands (U.S.) under paragraph (a), (3), (4), or (5) of this section, one additional copy of the entry or withdrawal on Customs Form 7512 shall be filed and shall be mailed by the receiving port director to the port director, Charlotte Amalie, St. Thomas, Virgin Island (U.S.). Before shipping merchandise in bond to another port for the purpose of warehousing or rewarehousing, the shipper should ascertain whether warehouse facilities are available at the intended port of destination.