- A port call is a countdown, not an event. The clock starts around 72 hours before arrival, and most delays are created in that window.
- Berth availability, gang booking and document acceptance are the three constraints that decide whether a vessel sails on schedule.
- The statement of facts is the commercial record of the call — it determines laytime, demurrage and despatch.
- The disbursement account closes the call. Speed and clarity there are how owners rank their agents.
From the quay, a port call looks like a single event: a ship appears, boxes move, the ship leaves. Inside a liner agency it is nothing of the sort. It is a sequence of deadlines, each one dependent on the last, running for days before the vessel is visible and for weeks after it has sailed.
This is that sequence, in the order it actually happens.
The countdown at a glance
T-72 hours: the paperwork arrives before the ship
Three days out, the agency files the vessel's pre-arrival documentation with the port authority, customs, immigration and health. That set typically includes the pre-arrival notification, crew and passenger lists, the cargo manifest, the dangerous-goods declaration, stores and bonded-stores lists, and the last ports of call.
At the same time, the berth request goes in against the terminal's line-up, and the pilot and towage bookings are lodged. If the vessel is carrying hazardous cargo, those permits are started first — they are consistently the longest lead item in the file.
Dangerous-goods approvals started late. They cannot be accelerated by argument, and a vessel that misses its berth window because of one drum of hazardous cargo waits for the next slot — which may be a day or more away.
T-24 hours: everything gets confirmed, not assumed
A day out, the berth window is reconfirmed against the terminal's live line-up, because line-ups move. Stevedore gangs and equipment are booked to match the actual stowage plan rather than a generic template — a discharge concentrated in two bays needs a different gang allocation from one spread across six.
Import delivery orders are prepared so consignees can take delivery the moment cargo lands, and export documentation is finalised against the loading list. Crew changes, surveys, repairs and bunker deliveries are all slotted into the working period rather than being allowed to interrupt it.
Arrival: the visible part
The pilot boards, tugs make fast, and the vessel comes alongside. Port health, immigration and customs complete inward clearance — and until that is done, cargo work cannot legally begin, which is why agency attendance at arrival matters.
Then the operation itself: discharge and loading to the agreed plan, with the agency tracking productivity continuously. Moves per hour is the number that determines whether the ship sails on schedule, and a rate that drops has to be noticed and escalated in the hour it happens, not discovered at the end of the shift.
Working the ship: what the agency is actually doing
- Monitoring productivity Comparing achieved moves against plan, shift by shift, and escalating shortfalls with the terminal while there is still time to recover them.
- Managing exceptions Damaged containers, missing seals, reefer alarms, out-of-gauge pieces needing special handling — each resolved without stopping the main flow.
- Serving the ship Crew changes and immigration, medical cases, spares and technicians, provisions, fresh water and bunkers.
- Recording everything Maintaining the statement of facts in real time, because reconstructing it afterwards from memory is how disputes are lost.
The statement of facts, and why it is worth money
The statement of facts is a timed log of the call: arrival at the pilot station, all fast, notice of readiness tendered and accepted, commencement of cargo, every stoppage with its reason, completion, and departure. On chartered vessels it is the evidence base for laytime — the agreed time allowed for cargo operations.
| Term | What it means | Who it affects |
|---|---|---|
| Laytime | Time allowed under the charter for loading or discharging | Owner and charterer |
| Demurrage | Penalty payable when laytime is exceeded | Charterer pays owner |
| Despatch | Reward when operations finish inside laytime | Owner pays charterer |
| NOR | Notice of readiness — the trigger that starts the laytime clock | Both, contentiously |
Stoppages are where statements of facts are won and lost. "Rain — 0340 to 0615" is a defensible entry. "Weather delay" is an invitation to a claim. Precision in the log is precision in the invoice.
Departure and the disbursement account
Outward clearance is obtained from customs and immigration, the pilot boards, and the vessel sails. The agency's work continues: finalising the statement of facts with the master's signature, closing out any outstanding services, and preparing the disbursement account.
That account itemises every cost of the call — port dues, pilotage, towage, mooring, stevedoring, agency fee, and every third-party service — reconciled against the funds advanced. Supporting invoices attach to each line. It is the single clearest signal of how well an agency is run.
You cannot judge an agency while the ship is alongside. You judge it three weeks later, when the account arrives — complete, itemised, and matching what you were told it would be.
Where the hours are actually won
Across thousands of calls the same handful of things separate a fast port call from a slow one, and almost none of them happen at the berth.
- Documents filed and accepted before arrival, not corrected after it.
- Berth window reconfirmed against the live line-up rather than assumed from last week's schedule.
- Gangs and equipment matched to the real stowage plan.
- Dangerous-goods permits started first, not last.
- One coordinator with the authority to decide, reachable at any hour.
- Productivity tracked hourly so a slow shift is escalated inside the shift.
- Statement of facts written as events occur, with specific reasons for every stoppage.
Who is actually involved in a single call
One reason port calls are harder to run than they look is the number of independent organisations that must all perform on the same day, none of which reports to the others.
The port authority allocates the berth and levies dues. The terminal operator — often a separate company — provides the quay cranes, the yard and the labour, and its productivity governs the vessel's stay. Pilots and towage operators bring the ship in and out, working to their own rosters and tide constraints. Customs, immigration and port health must each grant inward clearance before cargo work begins.
Around them sit the stevedores, the surveyors appointed by cargo interests or class, the bunker supplier, the chandler delivering provisions, any technicians attending repairs, and the consignees and forwarders waiting to take delivery.
The agency's actual product is the coordination of these parties into a single sequence. Nobody else in the port has visibility across all of them, and none of them has any obligation to talk to each other. That is the gap the agent fills.
How productivity is measured, and why the number moves
The metric that governs a container call is moves per hour — the number of containers lifted on and off per crane per working hour. A terminal quotes a planned rate; the achieved rate is what decides the departure time.
It slips for reasons that are usually visible early to someone watching. Restowage, where boxes must be lifted out and put back to reach cargo underneath, consumes moves that produce nothing. Yard congestion means a crane waits for trucks. Weather stops work outright. Gang breaks and shift changes create predictable gaps that a good plan absorbs. Equipment breakdowns are the wildcard.
An agency tracking this hourly can escalate while a shift can still be recovered — asking for an additional gang, re-sequencing the plan, or warning the owner early enough to adjust the next port. An agency that reports the shortfall the following morning has only recorded the loss.
For cargo owners: why any of this matters to you
If you are shipping goods rather than running ships, port calls feel like someone else's problem — until they are not. A vessel that loses its window arrives late at your discharge port. A container that misses a gang gets rolled to the next sailing. A manifest error at the load port becomes an amendment fee and a customs query at the destination.
Choosing partners who run disciplined port calls is therefore not an abstract preference. It is the difference between a delivery date you can promise your buyer and one you have to keep apologising for.
We handle both sides of this at S J Logistics — vessels in port and cargo across borders — which is why our shipments do not sit waiting for someone else's paperwork. Tell us what you are moving, and we will map the route and the timings against real schedules.
