A terminal appointment system (TAS) is the scheduling platform a marine terminal uses to control when trucks can enter the gate to pick up or drop off containers. Instead of trucks showing up at random and queuing for hours, drivers book time slots in advance — and without a valid appointment, many terminals will simply turn the truck away. For importers, the TAS is invisible until it becomes the reason a container did not move today.
Why terminals use appointment systems
Appointment systems smooth out gate demand across the day, cut truck queues and emissions, and let the terminal stage containers before the truck arrives. For drayage carriers they add a planning layer: dispatchers must match driver hours, chassis availability, and customs release timing to the slots actually available. When slots run out — common during peak season or after vessel bunching — containers wait another day even though they are released and ready. That is why appointment discipline is a core part of professional container drayage.
How the process works
Booking the slot
Once a container is discharged and released (customs, freight, and terminal holds cleared), the carrier’s dispatcher books a slot in the terminal’s TAS — typically a one-hour or two-hour window. Some systems release slots in waves, so dispatchers monitor them like airline seats. High-volume carriers assign staff to grab slots the moment they open.
Gate execution
The driver arrives inside the window with the appointment number, interchange details, and TWIC card. Miss the window and the appointment lapses; arrive without one and the gate may refuse entry. Good dispatch software — like Go Freight’s DispatchAI — pairs each appointment with a driver, chassis, and route plan automatically.
Appointment systems in South Florida
Practices differ by terminal at PortMiami and Port Everglades: some require appointments for all import pickups, others for specific move types or peak hours only, and rules change with volume. The practical takeaway for shippers: your carrier’s familiarity with each terminal’s system directly affects how fast your box moves. Choosing a carrier that runs those gates daily — one of the eight questions to ask a drayage company — matters more than the rate per mile. Slot scarcity is also a hidden driver of missed free time; see how to avoid demurrage at PortMiami.
What shippers can do
Release paperwork early so your carrier can book the first available slot instead of the last. Give delivery flexibility — a rigid 8 a.m. dock time plus a scarce afternoon terminal slot is how containers roll to tomorrow. And share vessel ETAs with your carrier a week out so dispatch can pre-plan appointments around discharge, not react after it.
Frequently asked questions
Do all port terminals require truck appointments?
No. Requirements vary by terminal, move type, and time of day, and they change with congestion levels. Many major container terminals now require appointments for import pickups, while some still run open gates for certain moves.
What happens if a driver misses the appointment window?
The appointment usually lapses and the dispatcher must rebook a new slot, which may not be available until the next day. Repeated no-shows can also cost a carrier its slot privileges at some terminals.
Can a shipper book terminal appointments directly?
Generally no. Appointments are booked by the motor carrier under its own credentials, because the slot is tied to the trucking company and driver making the move. Shippers influence speed mainly by clearing holds early and choosing carriers with strong terminal operations.
Go Freight’s dispatchers work PortMiami and Port Everglades appointment systems every day, backed by 100+ owned trucks and DispatchAI. Request a quote or call (786) 445-0150.