What is a tail gate exam?
A tail gate exam is a physical inspection by CBP in which officers break the seal, open the container doors and examine the cargo at the back of the container, the “tail gate”. They may pull out a few cartons to check that contents, quantities and markings match the declaration. The container is not fully unloaded.
Core principle: A tail gate exam is the middle level of US container inspection, more than an X-ray but less than a full intensive exam.
Where it fits among US exam types
| Exam | What happens | Impact |
|---|---|---|
| X-ray / VACIS | Non-intrusive scan, container stays sealed | Shortest delay |
| Tail gate exam | Doors opened, rear cargo inspected | Moderate delay and cost |
| Intensive exam | Container moved to a Centralised Examination Station and unloaded | Longest delay, highest cost |
Costs and delays
Exam costs are paid by the importer and depend on the port and terminal. They can include:
- moving the container to an inspection area, and terminal handling
- labour to open the container and reseal it
- demurrage and detention if the container is held past its free time
A tail gate exam can escalate to an intensive exam if officers find discrepancies.
How to reduce the risk
Consistent data
What it is: Make the ISF, bill of lading, invoice, packing list and entry tell the same story.
Why it matters: Inconsistencies are a common exam trigger.
Clear descriptions
What it is: Use specific product descriptions and correct HTS codes.
Why it matters: Vague descriptions make CBP look closer.
Compliance track record
What it is: A clean history and programmes such as CTPAT.
Why it matters: Trusted traders are examined less often.
Related: ISF · Packing list · Customs entry.
Frequently asked questions
How long does a tail gate exam take?
It varies by port and season, from a day or two to longer at congested ports.
Who pays for a tail gate exam?
The importer pays the costs of the exam and any storage or demurrage while the container is held.
Does an exam mean I did something wrong?
No. Many exams are random or risk-based and end without any findings.
