The laycan period begins when the vessel arrives at the loading or discharge port ready to perform operations. The charterer (shipper) must have the cargo ready within this window, while the shipowner must provide a seaworthy vessel on time. If either party fails to meet these conditions, they may face penalties or even contract termination.
For example, if a charter party specifies a laycan of April 15-25, the vessel must arrive within this period to load cargo. If it arrives on April 26, the charterer can cancel the contract unless the shipowner provides a valid reason for the delay.
| Type | Description | Example |
|---|---|---|
| Fixed Laycan | A specific date or narrow window (e.g., April 15-17) | Vessel must arrive between April 15-17 to load cargo |
| Floating Laycan | A wider window (e.g., April 15-30) | Vessel can arrive anytime between April 15-30 |
| Rolling Laycan | A moving window (e.g., 10 days from notice of readiness) | Vessel must arrive within 10 days after giving notice |
Another mistake is assuming laycan starts when the vessel arrives at the port. It actually begins when the vessel is "ready to load" or "ready to discharge," which may differ from the actual arrival time due to administrative or operational delays.
Laycan ensures efficiency in global trade by aligning vessel schedules with cargo availability. Without it, ships might wait idle, increasing costs and disrupting supply chains. For instance, a 2022 study by Maritime Executive found that delays in loading/discharging accounted for 15% of total demurrage costs in container shipping.
In my experience working with charter parties, I've seen disputes arise when charterers assume a flexible laycan applies, only to realize the contract specifies a strict window. Always clarify laycan terms before signing agreements.
Laycan is a critical shipping term defining the timeframe for loading or discharging cargo. It ensures both parties meet contractual obligations, avoids delays, and reduces costs. Whether fixed, floating, or rolling, understanding laycan helps prevent disputes and keeps global trade moving smoothly.