Customshouse Broker

The U.S. Customs Service defines a CHB, or Customs Broker, as any person
who is licensed in accordance with Part III of Title 19 of the Code of
Federal Regulations (Customs regulations) to transact Customs business on
behalf of others. Customs business is limited to those activities
involving transactions with Customs concerning the entry and admissibility
of merchandise; its classification and valuation; the payment of duties,
taxes, or other charges assessed or collected by Customs upon merchandise
by reason of its importation, or the refund, rebate, or drawback thereof.
(See 19 CFR 111.1(b) and (c).)