What your import needs to clear customs

A shipment does not clear customs because the goods are good. It clears because the paperwork, the markings and the product's certifications match what the destination country expects for that classification. Most border holds are not about duty at all — they are about a missing document or a marking that should have been settled with the supplier before production started, when fixing it was cheap.

The paperwork every shipment carries

The exact stack varies by destination, but the core set travels with almost every commercial import:

• Commercial invoice — the transaction record customs uses to check the declared value. Product description, quantity, price, currency, terms. Vague descriptions invite inspection; "LED desk lamp, model X" clears where "lamps" gets questions.
• Packing list — what is in which carton. It is how a partial inspection happens without unpacking the container.
• Bill of lading or air waybill — the transport contract and, in practice, the document that proves who owns the goods.
• Certificate of origin — where the goods were made. It matters because trade agreements and trade measures apply by origin, and the wrong or missing certificate can change what you pay or whether preferential treatment applies.

Your broker files the declaration; you own making sure these documents exist, agree with each other, and describe the same goods. Mismatches between invoice, packing list and declaration are a classic hold.

The classification decides more than the duty

The HS code on the declaration does two jobs. It sets the duty treatment — and it tells customs which other rules apply to your product: safety standards, labelling, licensing, inspection regimes. Two products in neighbouring HS headings can face entirely different documentary requirements at the same border — a rechargeable lamp under HS 8513 and a plug-in lamp under HS 9405 are the standing example. That is one more reason to settle the likely classification early and have your broker confirm it — every other item on this page follows from the code.

Product certifications: settle them before production

This is the category that catches first-time importers, because the requirement attaches to the product, not the shipment:

• European Union — many product categories need CE marking, with the technical documentation behind it. The marking is the supplier's to apply, but the obligation to place compliant product on the market is yours.
• United States — depending on the product: FCC for devices with electronics, FDA for anything that touches food or skin, CPSC rules for children's products. Which regime applies follows from what the product is and who uses it.
• United Kingdom — UKCA marking has been phasing in alongside CE recognition; which marking a product needs depends on the category and current transition rules — confirm the state of play for your product before you order.

The pattern across all destinations: find out which regime applies to your product category, ask the supplier for the certificates and test reports before the deposit, and verify the documents name the actual factory — not a different plant, not an expired report for a similar model. A supplier who cannot produce them during negotiation will not produce them at the border. The supplier vetting guide covers how to press on this without souring the deal.

Markings and labelling on the goods themselves

Beyond certificates, most destinations require the goods and packaging to carry origin marking ("Made in …"), and category rules add more: electrical ratings on appliances, fibre content on textiles, age warnings on toys. These are cheap at production time and expensive after — relabelling a container in a bonded warehouse is the kind of cost that never appeared in the landed-cost math — put a compliance line into the calculator alongside duty and freight.

A sequence that keeps you out of trouble

1. Classify first. Get the likely HS heading, then have your broker confirm the code for the destination.
2. Map the requirements off the code and category — documents, certifications, markings. Your broker or a freight forwarder will list them for the destination; make the supplier's quote conditional on meeting them.
3. Collect the compliance documents before the deposit, and check they name the right factory and model.
4. Write the requirements into the order — spec sheet, markings, documents to be delivered with the goods.
5. Match the paperwork before shipping: invoice, packing list and declaration describing the same goods the same way.

None of this requires memorising regulations. It requires asking the right questions in the right order, before money moves — which is the same discipline as the rest of the import checklist. If you want the likely classification and the compliance questions for your specific product laid out in one brief, describe the product and destination and start from there.

Requirements change and vary by product and destination — treat everything here as the questions to ask, and confirm the current rules for your shipment with your customs broker or forwarder before you commit.