The primary CBSA Import Entry Coding Form, also referred to as an “Accounting document” or more simply, “entry”. This form details all applicable information related to an import transaction (e.g., tariff classification, tariff treatment, country of origin, quantity, value, applicable duties, taxes, etc.). In reality we no longer submit a hard-copy B3 to CBSA, but instead, transmit all of the data electronically. A hard-copy may be printed for billing and client information purposes however.