Customs clearance is where most China to USA shipments either move smoothly or

stall. It is also the part of the process that importers have the least visibility

into, because it happens after the cargo has left the supplier and before it reaches

your door.

This guide explains the clearance sequence step by step, the documents that drive it,

how duty is determined, and the specific problems that cause most delays.

It is written for US importers who want to understand what is happening to their

cargo while it is in Customs’ hands — and what they can control before it arrives.

The Seven Steps of China to USA Customs Clearance

Customs clearance is a sequence, not a single event. Each step depends on the one

before it, which is why a problem early in the chain delays everything downstream.

Step 1  China Export Customs
            ↓
Step 2  International Transportation
            ↓
Step 3  Arrival at US Port
            ↓
Step 4  Entry Filing
            ↓
Step 5  Duty & Tax Assessment
            ↓
Step 6  Customs Release
            ↓
Step 7  Final Delivery

Step 1 — China Export Customs. The shipment is declared to Chinese customs and

released for export. Errors in the supplier’s documentation surface here, and a

delay at this stage pushes back the entire schedule.

Step 2 — International Transportation. The main carriage by ocean or air. No

customs activity occurs during transit, but this is when a forwarder should be

preparing the US entry documentation rather than waiting for arrival.

Step 3 — Arrival at US Port. The carrier files arrival information. The shipment

is now physically in the United States and begins accruing terminal storage time.

Step 4 — Entry Filing. The formal declaration to US Customs and Border

Protection. This is the step the Importer of Record is legally responsible for. It

includes classification, valuation and origin.

Step 5 — Duty & Tax Assessment. CBP assesses duty based on the filed entry.

Step 6 — Customs Release. Once the entry is accepted and duty is paid, the

shipment is released. If CBP selects it for examination, release waits until the

exam is complete.

Step 7 — Final Delivery. Drayage from the terminal and delivery to the

destination address.

Documents Required for US Customs Clearance

The exact set depends on the commodity, but these are the documents that drive a

standard commercial entry:

Commercial Invoice

The core document. It states the seller, the buyer, the goods, the value and the

terms of sale. Value must be the transaction value actually paid or payable —

this is what CBP assesses duty against.

An invoice that describes goods vaguely (“plastic articles”, “parts”) causes

classification problems. Specificity is what makes the entry defensible.

Packing List

Carton count, dimensions, weights and marks. It must reconcile with the commercial

invoice. A mismatch between what the invoice says and what the packing list shows is

one of the most common triggers for a CBP inquiry.

Bill of Lading or Air Waybill

The transport document. It establishes the carrier, the shipper, the consignee and

the routing, and it must be consistent with the entry.

HS/HTS Code

The Harmonized Tariff Schedule classification for each product. This determines the

duty rate and any applicable trade measures.

Classification is a legal determination, not a description. Similar products can

fall under different codes with different rates, and the difference is not always

intuitive. This is one of the areas where a customs broker earns their fee.

Importer Information

The Importer of Record must be a US entity, or a foreign entity with a US presence

and the appropriate registrations. The IOR needs an Employer Identification Number

and must be able to receive CBP correspondence.

Customs Bond

A customs bond is generally required to clear commercial shipments into the United

States. A single-entry bond covers one shipment; a continuous bond covers all

entries for a year. Importers bringing in regular volume usually find the continuous

bond more economical.

Under DDP arrangements the seller’s agent typically handles the bond. Under FOB or

CIF it is your responsibility to arrange.

Entry Filing

The entry summary itself, filed by a licensed customs broker or by the importer

directly. It consolidates the classification, value and origin into a declaration

that the IOR signs.

Product-Specific Certificates

Depending on the commodity, additional documentation may be required by agencies

beyond CBP — the FDA, CPSC, EPA, USDA, FCC and others. These requirements attach to

the product, not to the shipment, so they apply regardless of which Incoterm you

shipped under.

How Duty Is Determined

Three inputs determine your duty:

Classification. The HTS code assigns a base duty rate. Most rates are ad valorem

— a percentage of value.

Origin. Country of origin determines eligibility for preferential rates and

exposure to country-specific measures. For Chinese-origin goods, Section 301 tariffs

apply to many product categories.

Value. The declared transaction value, which is what the duty percentage is

applied to.

On top of the base rate, additional measures may apply:

  • Section 301 tariffs — additional duties on specified Chinese-origin goods
  • Anti-dumping duties (AD) — applied where a product is sold below fair value
  • Countervailing duties (CVD) — applied where foreign producers receive

subsidization

  • Other Chapter 99 measures

AD/CVD is the one that catches importers off guard most often, because it is

product-specific rather than country-wide. A product can carry an AD/CVD order

with a duty rate far above the base rate, and an importer who did not check the scope

may only discover it after the entry is filed.

Verify your product’s treatment before you place the purchase order, not after

the cargo arrives.

Common Customs Clearance Problems

Most clearance delays trace back to one of six causes.

Incorrect HS Code

Misclassification produces the wrong duty rate and can trigger a CBP review. It is

also the error with the longest tail — corrections can require post-entry amendments.

Undervaluation

Declaring goods below their actual transaction value to reduce duty is not a

legitimate cost-saving measure. It exposes the Importer of Record to penalties and

damages the importer’s compliance record. Where a supplier proposes this, treat it as

a serious warning sign rather than a favor.

Missing or Inconsistent Documents

An invoice that does not match the packing list, a missing certificate for a

regulated product, or a consignee name that differs between documents will all hold

up an entry. Consistency across documents is what allows an entry to be filed

cleanly.

Product Compliance Issues

Many products require clearance from agencies other than CBP. Electronics may need

FCC authorization; food and cosmetics may require FDA registration; children’s

products may fall under CPSC rules. A shipment that clears CBP but fails an agency

requirement is still not released.

AD/CVD Scope

If your product falls within the scope of an anti-dumping or countervailing duty

order, additional duties apply and the entry requires additional reporting. Scope

determinations are technical, and being outside the scope of an order you assumed

covered you — or inside the scope of one you did not check — both create exposure.

Import Restrictions

Certain goods are subject to quotas, licensing requirements or outright prohibition.

Restricted categories typically require a permit obtained before shipment, not at

the port.

How to Reduce Clearance Risk

Four practical measures, all of which happen before the cargo ships:

Confirm the classification in writing. Ask your broker for the HTS code and the

basis for it, and keep that record.

Make the invoice specific. Product descriptions detailed enough to classify, with

values that reflect the actual transaction.

Check scope for AD/CVD and Section 301 before ordering. This is a purchase-order

decision, not a logistics decision. Finding out at the port is too late.

Confirm who the Importer of Record is. Under DDP especially, this must be

settled in writing before pickup. The IOR carries the legal responsibility for the

entry’s accuracy, regardless of who physically arranged the shipment.

For how the IOR question interacts with DDP arrangements specifically, see

DDP shipping from China to the USA. For how

clearance and duty fit into the total cost picture, see

how much it costs to ship from China to the USA.

Frequently Asked Questions

How long does customs clearance take for imports from China?

Most entries are released within days of arrival. The variables are whether CBP

selects the shipment for examination, whether all documents are consistent, and

whether another agency has a requirement attached to the product. An examination

adds time that cannot be scheduled around.

Do I need a customs broker to import from China?

Importers may file entries directly, but most use a licensed customs broker. The

broker prepares and files the entry, calculates duty and acts as the importer’s

representative with CBP.

What happens if my shipment is selected for examination?

CBP may examine cargo before release. The shipment is held at the terminal while the

exam is scheduled and completed, and the importer bears the exam cost. This is why

leaving buffer in your delivery schedule matters.

Can the supplier be the Importer of Record?

Under DDP, the seller or their agent typically acts as IOR. That party must be able

to meet CBP’s requirements for an IOR. Where an importer needs the entry in their own

name — for import history, financing or contractual reasons — the arrangement must

be structured accordingly from the beginning.

What is the difference between a single-entry and a continuous bond?

A single-entry bond covers one shipment. A continuous bond covers all entries for a

twelve-month period. Importers with regular volume generally find the continuous bond

more cost-effective.

Does DDP mean the seller handles customs?

Under DDP the seller arranges clearance and pays duty. The compliance obligations

attached to the entry still exist, and the party acting as IOR carries them. DDP

changes who performs the work, not whether the requirements apply.

Key Takeaways

Customs clearance rewards preparation and punishes assumptions. The work that

prevents delays happens before the cargo ships: correct classification, an accurate

and specific invoice, consistent documents, and a settled answer to who the Importer

of Record will be.

Two points worth carrying forward:

Classification is a legal determination. It sets your duty rate and your

exposure to trade measures. Treat it as a documented decision rather than a

formality.

AD/CVD scope is a purchase-order question. Verify it before you commit to buy,

not when the container reaches the port.