Definition
Customs clearance is the set of acts and documents for goods to cross legally — classification, pedimento, duties, reviews, and release — before inland freight can start with confidence.
If your ETA ignores the pedimento, you are not planning transport — you are guessing customs.
Related: pedimento · nearshoring · shipment.
What it means in practice
It includes preparing documents, filing the pedimento, paying duties, and obtaining release. It is not “just the truck crossing.”
On Mexico–US lanes the bottleneck is often documentary: without release, the tractor accrues waiting time and OTIF breaks before the highway.
Why it matters by role
| Role | What they need | Without governed clearance |
|---|---|---|
| Traffic / operations | Release milestone | Truck waiting “on customs” |
| Trade compliance | Pedimento and duties | Rework and fines |
| Shipper | Credible ETA | Broken customer promises |
| Accounts payable | Clear crossing costs | Charges with no file |
Minimum milestones on the trip
| Milestone | Question | Note |
|---|---|---|
| Docs ready | Classification and papers OK? | Before booking |
| Pedimento | Number and status? | Mexico |
| Duties paid | Covered? | Blocks release |
| Release | Can it leave? | Freight start |
| Physical crossing | Gate / bridge? | Visibility |
How to align clearance and freight (5 steps)
Prepare docs
Before the appointment
File pedimento
With broker/customs
Pay and release
Visible milestone
Assign freight
Only after release
Close the file
Docs + trip
Expensive mistakes
1.Quoting ETA without a customs milestone
The customer sees a “transport” delay that was really the pedimento.
2.Clearance in one system, freight in another
Nobody knows if loading is allowed yet.
3.Confusing clearance with Carta Porte
Different layers: customs vs Mexico inland fiscal/transport docs.
4.No exception owner
Chat grows and the truck waits.
OCL and the trip file
OCL joins crossing and transport milestones in the trip file. It does not replace the customs broker. OCL can stamp invoices and Carta Porte.
Sources and further reading
Key takeaways5 points
- Customs clearance = the acts and documents for goods to cross legally (including the Mexican pedimento, duties, and release).
- Nearshoring without predictable clearance = a fake estimated time of arrival (ETA): freight waits on documents, not only kilometers.
- Define milestones: docs ready, pedimento paid, goods released, then inland leg start.
- The transportation management system (TMS) must see customs status on the same trip as tracking; if it lives only with the broker, traffic will improvise.
- OCL orchestrates the trip file around the crossing. It is not a customs broker or PAC. It can stamp Mexico’s digital tax invoice (CFDI) and Carta Porte.
Does your ETA include the pedimento — or only the km?
Frequently asked questions
The process and documents to cross legally, including pedimento, duties, and release.
No: the pedimento is the key Mexican document; clearance is the full process until goods are released.
Without a release milestone, appointment plans and OTIF are fiction.
Usually a customs broker / trade team; traffic must see status, not guess it.
More Mexico–US volume without predictable clearance saturates yards and breaks ETAs.
It surfaces the customs milestone with the trip so freight is not assigned blind.