"One product, four rulebooks: importing outside the US"
Importers who have learned one market often assume the knowledge transfers. Very little of it does.
Tariff classification is harmonised between countries only to six digits. Beyond that, every country writes its own. Duty rates are national. Preference depends on which agreements that specific country has signed. Trade remedies are investigated and imposed country by country. Product rules, labelling and registration are set locally.
The same carton entering two countries can face different codes, different rates, different paperwork and different legality.
What is shared, and what is not
Shared. The Harmonized System governs the first six digits of tariff classification and most countries use it. Customs valuation is broadly aligned through the WTO valuation agreement, so the concept of transaction value is familiar across markets. Both give you a common vocabulary.
Not shared. Everything after the six digits. Duty rates. Which trade agreements apply. Which trade remedies are in force. Product standards and certification marks. Labelling language and content. Registration requirements. Thresholds below which goods enter free of duty. Whether you need a locally established entity or representative.
The vocabulary carries over. The answers do not.
The six things to check for each new market
Work through these before the first shipment, not after.
1. The national classification. Take the six-digit code you already know and get the full national code confirmed by a broker in that market. The extra digits often carry the rate difference, and occasionally the six-digit code itself is disputed because national notes differ.
2. The applicable duty rate. Depends on the code and on the origin. Ask for the rate under both the normal schedule and any preference you might claim.
3. Preference, and how to prove it. A country's trade agreement network is its own. Goods from China may enter one market at a reduced rate under an agreement and another at the full rate because no agreement covers them. Where preference exists, it almost always requires a certificate of origin obtained before you file, and the rules of origin are specific to that agreement. There is a separate guide on the certificate of origin.
4. Trade remedies. Antidumping and countervailing measures are national. A product facing a heavy duty in one market may face none in another, and the reverse. Check the local list rather than assuming.
5. Product rules. This is where the largest surprises live. Certification marks, safety testing, electromagnetic and radio approval for anything that transmits, food and cosmetic registration, medical device classification and registration, chemical restrictions, packaging and recycling obligations. Requirements differ substantially between neighbouring countries.
6. Local presence. Some markets require the importer to be locally established, some require a resident agent or a local responsible person for certain product categories, and some require a licence to import at all.
The mistake that costs the most
Product registration and certification are usually discovered late, and they are the hardest to fix late.
A tariff problem is expensive. A registration problem can mean the goods cannot legally be sold at all, and often cannot be corrected after manufacture, because the required marking, testing or documentation had to be built into production.
So the sequence matters. Find out what the destination market requires, then choose the supplier, then order. A factory that cannot produce the test reports or the marking your market needs is the wrong factory whatever the quotation says.
Radio and electrical products deserve their own check
Anything that transmits wirelessly needs approval from the telecommunications authority in most markets, and the approval is usually specific to that country. A device certified for one market is not automatically permitted in another.
Mains-powered products face plug type, voltage, frequency and safety certification differences. These are obvious in principle and still get missed, because a supplier will ship whatever configuration they normally ship unless told otherwise.
Language and labelling
Labelling rules commonly specify the language, the information required, the units, and sometimes the minimum type size and position.
Bilingual or multilingual labelling is mandatory in several markets. Instructions and safety warnings may need translation. Some markets require the local importer's name and address on the product or packaging, which means the label cannot be finalised until you know who that is.
Get the label approved before production. Relabelling a container of goods after arrival is possible, and it is slow and expensive.
How to approach a new market efficiently
You do not need to become an expert in each one.
- Engage a licensed customs broker in that market early, before you order.
- Give them the product, the six-digit code, the origin and the intended use, and ask for the national code, the duty rate, any remedies, and whether preference is available.
- Ask separately what product rules apply. Brokers vary in how far they go on this. If yours does not cover it, find a local regulatory consultant for the categories that need one.
- Put the resulting requirements into your specification and purchase order so the factory builds to them.
- Keep a one-page summary per market. You will need it again.
The cost of this is a few hundred to a few thousand in professional fees per market. The cost of skipping it is a container of goods you cannot sell.
The short version
Classification is shared to six digits and nothing beyond that transfers. Duty, preference, remedies, product rules and labelling are all national.
Ask a broker in the destination market before you order, not after the goods arrive.
Verified August 2026. Next review February 2027. Requirements change frequently and differ by product. Confirm with a licensed customs broker and, where product rules apply, a regulatory specialist in that market.