Declaring Vehicles as Cargo
The Ro-Ro cargo declaration is fundamentally different from any other vessel type because the "cargo" is thousands of individual self-propelled or towable units, each with its own weight, dimensions, and regulatory classification. A single PCTC voyage may carry 4,000 passenger cars, 500 SUVs, 200 trucks, 50 pieces of heavy construction equipment, and 800 battery electric vehicles — all requiring different levels of documentation.
The declaration must organize this cargo by deck level because deck weight limits are a structural constraint on Ro-Ro vessels. Each vehicle deck has a maximum rated load, and the total weight distribution across all decks directly affects the vessel's stability. The cargo declaration's deck-by-deck weight breakdown must be consistent with the stability calculations submitted in the VUMPA — a mismatch is a rejection trigger.
Declaration Requirements by Cargo Type
- Standard vehicles (cars, SUVs): Total count by deck, average weight per unit category, VIN manifest for tracked shipments, and Bill of Lading references by consignment.
- Commercial vehicles (trucks, buses): Individual weight declarations for vehicles exceeding 3.5 tonnes, fuel status (tanks drained below 25% or with residual fuel), and deck position.
- Heavy equipment (construction machinery, tractors): Individual weight and dimension declarations per unit, securing arrangement documentation, and deck structural loading verification.
- Battery electric vehicles: Separate BEV count, deck locations, battery type and capacity (kWh), state of charge at loading. BEVs with lithium-ion batteries above certain thresholds require IMDG Class 9 entries in the dangerous goods section.
- Breakbulk on trailers: Individual trailer manifests with cargo descriptions, weights, and any DG classifications for trailer contents.
Multi-port loading changes the deck distribution. PCTCs loading at 3-5 ports may have a final deck weight distribution that differs significantly from the planned stowage. The cargo declaration must reflect the actual final distribution — not the planned one. Reconcile deck weights after the final load port before starting the VUMPA submission.
Frequently Asked Questions
What cargo information must a Ro-Ro vessel declare?
Total vehicle count by type, deck-by-deck weight distribution, VIN manifest for tracked units, BEV declarations, heavy equipment individual manifests, and dangerous goods entries for classified vehicles. Weight totals must match stability calculations.
Do battery electric vehicles need separate declarations?
Yes. BEV count, deck locations, battery type and capacity, and state of charge. Large lithium batteries may require IMDG Class 9 entries. The ACP uses BEV data to assess fire risk and evaluate ventilation needs during transit.
How does the Ro-Ro declaration differ from a container ship's?
Organized by deck level instead of container position. Weight distribution is structurally critical. VIN tracking replaces container numbers. Mixed cargo types (vehicles, breakbulk, heavy equipment) require separate documentation categories.
What is the most common rejection?
Deck weight distribution errors. Multi-port loading often changes the final distribution from the planned stowage, creating a mismatch with the stability data. Reconcile after the final load port.
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