| AIS / vessel position | IMO or MMSI, provider, position time, received time, cache state, speed/course, destination | Show stale or conflicting data; never label it live without a timestamp |
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| Freight estimation | Distance basis, sea/port days, consumption, price, hire, port costs, commission, cargo capacity | Version formula and assumptions; separate market input from calculation |
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| Port information | Draft, dimensions, berth/anchorage, handling, tariffs, clearance documents, source and checked date | Expire records and request reconfirmation before a firm decision |
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| Bunker data | Port, grade/specification, supplier, price basis, quote time, currency, validity, taxes, payment and delivery | No undated price tables; compare like-for-like offers only |
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