For tugs, barges, and cargo, ACI requires the same voyage number to be transmitted in the relevant fields on all reports. In the following scenarios:

• A tug pulling one or more barges with cargo: Reports must be submitted for the cargo on each barge, referencing the relevant Conveyance Reference Number.
• A tug pulling one or more barges without cargo: If the tug is pulling barges without any cargo, there is no need to submit ACI cargo reports.
• A tug carrying goods not on a barge: Reports must be submitted for the cargo, referencing the tug’s Conveyance Reference Number.
• An empty (in ballast) tug not pulling barges: ACI cargo reporting is not required in this case.