The U.S. Customs and Border Protection (CBP) does not require an importer to have a license or permit, but other agencies may require one, depending on the commodity that is being imported. In order to avoid potential problems in the clearance of your merchandise, follow these guidelines:
Contact government agencies and departments directly to find out their respective importing policies and procedures.
Find out if you need a license from a local or state authority.
You must provide your importer number on the CBP entry form in order to import merchandise into the United States