Two quotes side by side, identical base rates, totals a stretch apart — the difference is the row of abbreviations underneath. The truth of an ocean quote: the base rate is the foundation, and a whole storey of surcharges sits on top. In peak season, the surcharges are what bite — and reading them beats haggling.
The surcharge family, decoded
PSS (Peak Season Surcharge): added when demand tightens capacity. Announced effective dates; it retires when the season ends — always later than you hoped.
GRI (General Rate Increase): the carriers’ periodic across-the-board increase, typically effective at the start or middle of a month. An announced GRI does not always stick — soft markets delay or shrink it — but the announcement alone triggers a pre-effective-date booking rush.
PCS (Port Congestion Surcharge): levied where ships queue. Unlike PSS it follows port conditions — charged where congestion is, with little warning.
BAF / FSC (fuel surcharges): the floating fuel component — BAF at sea, FSC in the air — permanent and periodically adjusted, jumping visibly when oil moves.
Once you can read them, the single most useful RFQ question writes itself: “What is this quote’s validity date, and which surcharges does it include and exclude?” Most disputes are not deception — they are a PSS that took effect between quote and sailing, and nobody asked about validity.
The calendar: three booking rushes a year
Transpacific capacity crunches are scheduled, not random:
- Q4 holiday stocking (late summer into autumn): US retail loading for the shopping season — the traditional big peak, PSS a near-annual visitor
- Pre-Lunar-New-Year: Asian factories clearing lines before the shutdown, the last concentrated push — tight space, hard prices
- Pre-tariff-effective-date rushes (the recent addition): a tariff announcement with an effective date makes importers pull cargo forward en masse, manufacturing a policy-driven peak that arrives fast and often stacks on top of a traditional one
Different causes, same meaning: ship inside those windows and you pay not just freight but the premium of competing with the world for space.
Three ways to trade time for money
Book early: peak season punishes the last-minute, not the shipper. Pull booking forward a few weeks and the space and price options are a different world; ask in the week everyone is scrambling and only expensive and more-expensive remain.
Stay flexible on ports: when the default gateway jams, alternate port-plus-inland combinations often beat a ship waiting at anchor — shippers who keep port flexibility double their peak-season options.
Pre-position in the off-season: for steady-selling SKUs, ship early into a US warehouse at off-peak rates and fulfill domestically through the peak — trading warehouse days for surcharge premiums, usually profitably.
Where SKYCARGO fits
SKYCARGO INC quotes with validity dates and surcharge lines explicit, watches the GRI/PSS calendar on your lanes, and plans pre-positioning through our Los Angeles and Oregon warehouses. Tell us your shipping rhythm and we will map your year around the three rushes. (Personal parcels: Shiptw.)
Surcharge amounts and effective dates follow each carrier’s current announcements. Reference only.
