海关编号指海关接受申报时给予报关单的编号，进口报关单和出口报关单分别编号。海关编号由各海关在接受申报环节确定，应标识在报关单的每一联上。
美国海关将接受的名称和地址代替DUNS编号。
CBP will accept a DUNS number in lieu of the name and address.
国税局（美国国内税局）编号、雇主识别编号、社会保障卡号、或海关边境保护局编号这些确定的号码表明了为进口行为：有义务、有责任遵守所有的相关法令和管制，并承担进口所带来的任何后果。
IRS number, EIN, SSN, or CBP assigned number of the entity liable for payment of all duties and responsible for meeting all statutory and regulatory requirements incurred as a result of importation.
企业在出口货物申报之前，必须预先将新版核销单编号上网向出口报关地海关备案。
Before declaring exports to customs, the enterprise shall record the serial number of the new version Verification Certificate at the same customs that it will declare to by inter-net in advance.
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