Currently, the policy is that the port of discharge and sub-loc are conditional, provided that they’re different from the port of destination. The ECCRD reflects this policy. However, the CBSA Transporter Cargo and Control Programs Unit (TCCPU) has reviewed the requirement for the port of discharge and sub-location code on the house bill transmission and will amend the ECCRD to indicate that the condition on the port of discharge and corresponding sub-location code data elements is conditional “if available.”