Draft restrictions are a cargo tax, not a delay
Congestion and closure delay a vessel. A draft restriction does something different: it reduces how much that vessel can legally carry.
An operator facing a lower limit has three options, all of them expensive. Load less and sail with the same fixed voyage costs spread over fewer tonnes. Split the parcel across a second vessel and pay for both. Or transship, adding a port call, handling costs and several days.
None of these appear as a delay in a schedule report. They appear as margin compression on a voyage that otherwise looks normal, and that is precisely why they are easy for a credit team to miss.
Slot allocation and the laycan problem
Capacity is also rationed through daily transit slots and booking auctions. When slots tighten, the price of a guaranteed transit rises and the availability of an unbooked one falls.
A vessel that cannot secure a slot waits. A vessel that waits misses its laycan. A missed laycan means the charterer can cancel, or can demand compensation, or can renegotiate, depending on the contract. Every one of those outcomes puts an invoice into dispute.
Demurrage and detention charges then accumulate daily against whichever party is contractually exposed, and the argument about who that is takes longer to resolve than the delay itself did.
Why postponements matter as much as cuts
The September postponement is a useful illustration of a broader point. Canal conditions move in both directions, sometimes within weeks, and operators plan voyages months in advance.
A charterer who fixed a vessel on the assumption of a 47.5ft limit and now faces a 48.0ft limit has an unexpected gain. One who fixed on 49.5ft and faces 48.0ft has a loss. Neither planned badly. The parameter moved.
For a credit team, the relevant fact is that this volatility sits on top of already compressed margins in a market where the Suez alternative is compromised by Red Sea risk. Operators have fewer levers than usual.
The signal worth tracking
Canal-related stress is visible in scheduling behaviour before it is visible in accounts. Vessels waiting longer for slots. Routings changed to avoid the canal entirely. Cargo splits appearing where they did not before.
A credit team that can see a laycan miss coming has time to talk to the counterparty. One that learns about it when a penalty is invoked is already in a dispute.
What CERTY does about this
Live schedule and routing visibility lets a credit team see a laycan miss coming before the penalty clause is invoked. Vessel-level tracking surfaces the waiting times, cargo splits and route changes that indicate a counterparty is absorbing canal-driven cost, well ahead of the financial reporting that would eventually confirm it.
