Port Charter

What it does

A port charter is a voyage charter in which the agreed destination is the port rather than a specific berth. Under it the vessel generally becomes an arrived ship once it has reached the port and is at the immediate and effective disposal of the charterer, which usually allows a valid notice of readiness to be tendered even though no berth is yet available. Laytime can then begin while the ship waits for a berth.

This is the counterpart to a berth charter, where arrival turns on reaching the named berth. The practical question under a port charter is what counts as having arrived at the port, since a ship anchored far out in a large port area may not yet be at the charterer's disposal in the required sense. That question of the exact arrival point is where most port-charter disputes arise.

Commercial effect

A port charter shifts the risk of berth congestion toward the charterer, because laytime can start once the ship has arrived at the port even though a berth is not free. The waiting time for a berth then runs against the charterer rather than the owner, which in a congested trade can be the difference between a clean turnaround and a substantial demurrage bill.

For the owner the port basis is preferable precisely because it begins counting earlier and does not leave the vessel waiting unpaid for a berth it cannot control. The choice between port and berth terms is one of the central commercial levers of the fixture, bargained alongside the freight, the laytime allowance, and any congestion-related wording that fine-tunes exactly where and when arrival bites.

Owner's perspective

The owner favours a port charter because arrival at the port, rather than at a particular berth, lets the vessel tender notice and start laytime while it waits. That keeps the congestion risk with the charterer and protects the owner from absorbing waiting time at anchor that it has no means to shorten once the ship has reached the port limits.

The owner still pays attention to the precise arrival test, because a port charter only helps if the ship genuinely counts as arrived at the agreed waiting place and at the charterer's disposal. The owner therefore wants the waiting position and the readiness requirements defined so that a notice tendered on arrival cannot be picked apart on the ground that the ship had not truly arrived within the port.

Charterer's perspective

The charterer is cautious about a port charter because it can start laytime running while the ship merely waits for a berth, transferring congestion risk that the charterer may regard as the owner's. In a port where queues are common, accepting a port basis can expose the charterer to demurrage for delay it cannot control once the vessel has reached the port limits.

Where it accepts a port charter, the charterer focuses on the arrival test and the readiness conditions, seeking to confine the moment of arrival to a genuine waiting place at its disposal and to require real physical and legal readiness before a notice bites. It may also align the basis with its sale or sub-charter terms so the congestion risk it takes can be passed on.

Negotiation points

  • Whether the fixture is on a port or a berth basis, which sets the default arrival point.
  • What counts as arrival at the port — the waiting place and being at the charterer's disposal.
  • The readiness conditions that must be met before a notice tendered on arrival is valid.
  • How the basis aligns with the charterer's onward sale or sub-charter terms.

Common variations

  • A plain port charter, with the ship an arrived ship on reaching the port at the charterer's disposal.
  • A port charter naming a specific waiting place or anchorage as the arrival point.
  • A port charter combined with a turn-time provision before laytime counts.
  • A hybrid where berth-charter wording is added for one port in the rotation only.

Charter party clause wordings vary between standard forms, riders and individual fixtures. This library explains the commercial concept, not your contract — always check the actual charter party you are working with. This is general information, not legal advice.

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