Customs and origin
Tariff lines, NOMs, permits and USMCA rules of origin, read from the official texts with their dates.
Why it decides the outcome
At the border the paperwork decides whether goods move, wait or go back. A wrong tariff line, a missing NOM label or a permit not yet in hand can hold a shipment for weeks, and a claim of USMCA origin that cannot be proven can turn into duties, fines and a review of past entries.
What we look at
- The tariff line (fracción arancelaria), and the duty and restrictions attached to it
- Which NOMs apply: labelling, safety, energy efficiency
- Permits from the bodies at the gate: COFEPRIS, SENASICA, SEMARNAT and the Secretaría de Economía
- The rules of origin for your product, and the proof behind them, part by part
- Recent changes published in the Diario Oficial de la Federación, with their dates
On this site: The gates, by product type · What's changing
The four gates a shipment passes
Each one is read from the official text, with its date in the Diario Oficial de la Federación.
United States and Mexico, goods and services, 2025
The United States buys 190.2 billion dollars more from Mexico than it sells to it.
Source: US Bureau of Economic Analysis, US International Transactions factsheet, 2025 annual figures. The total and the difference are our arithmetic.
It starts in writing
Write to us: who you are, what you need and the decision in front of you. We read it and reply in writing: whether it fits, what we need from you, and the fee. We give no opinion until we have read your case, and every figure in our assessment carries its source and its date.