INTERNATIONAL TRADE LAW
How to Import Machinery into the U.S.: A Guide
To import machinery into the United States, you classify it under the right tariff code, calculate the duties, file a customs entry with a bond, and confirm the equipment meets any safety or agency requirements before it clears. The mechanics are the same whether you are bringing in a single CNC lathe or a full production line — what changes is the dollar stakes of getting a step wrong. This guide walks the process in order. For the regulation-by-regulation detail, pair it with how to comply with import regulations for machinery.
Step 1: Classify the Machinery Correctly
Everything downstream depends on the Harmonized Tariff Schedule (HTS) code. The code sets your duty rate, signals which other agencies care about the shipment, and determines whether trade-remedy duties apply. Machinery and mechanical appliances largely sit in HTS Chapters 84 and 85, but the right subheading turns on function, capacity, and sometimes the material worked. If the classification is ambiguous or the duty swings widely between plausible codes, consider requesting a CBP binding ruling so you know the rate before the equipment ships.
Step 2: Calculate the Landed Cost
Your duty is the HTS rate applied to the customs value — generally the price actually paid for the goods, with certain additions. Build a realistic landed-cost estimate before you commit:
- Ordinary duty at the HTS rate for the machine’s classification and country of origin.
- Possible additional duties. Depending on the product and origin, machinery can be subject to anti-dumping or countervailing duties or to additional tariffs imposed under U.S. trade actions. These rates change over time and by country, so verify the current rate for your specific HTS code and origin rather than assuming — this is the single biggest source of budget surprises.
- Other charges — Merchandise Processing Fee, Harbor Maintenance Fee on ocean shipments, freight, insurance, and brokerage.
Because the customs value drives the whole calculation, it is worth understanding how customs value and import duties work before you finalize the deal.
Step 3: Confirm Admissibility and Safety Requirements
CBP enforces the rules of other agencies at the border, and a surprising amount of machinery carries an overlay beyond customs duties. Whether one applies depends on what the machine is and what it contains.
| If the machinery… | A relevant agency may be… |
|---|---|
| Contains a laser or emits radiation | FDA (radiological health) |
| Uses refrigerants or affects emissions | EPA |
| Emits radio frequency | FCC |
| Is a motor vehicle or engine | DOT / EPA |
| Has worker-safety implications | OSHA standards apply in use |
CBP does not “approve” machinery for workplace safety, but the equipment still has to meet applicable U.S. standards once in service, and some categories require permits, certifications, or labeling at entry. Identify these early — a missing certification can hold a shipment far longer than a duty dispute.
Step 4: Line Up the Entry Paperwork
Most commercial importers work with a licensed customs broker to file the entry, and for good reason: the documentation has to be precise and on time. Core documents include the commercial invoice, packing list, bill of lading or air waybill, and the entry summary (CBP Form 7501). You will also need:
- A customs bond, which guarantees payment of duties and is required for most commercial entries.
- An Importer Security Filing (ISF) for ocean shipments, filed before the cargo is laden abroad.
- Any agency-specific filings flagged in Step 3.
Step 5: Clear Customs and Take Delivery
When the goods arrive, the entry is filed, duties are deposited, and CBP either releases the shipment or holds it for examination. Heavy machinery often requires specialized rigging and transport from the port, so coordinate inland logistics in advance. Keep complete records — invoices, the entry package, classification reasoning, and any rulings — for at least five years, the standard recordkeeping period. If CBP later questions the entry, that file is your defense. For the big-picture sequence, the introduction to U.S. customs regulations is a useful companion.
Frequently Asked Questions
What is the first step to importing machinery?
Classify the machine under the correct HTS code. The classification sets your duty rate, flags any other agencies involved, and determines whether trade-remedy or additional duties apply.
Do I need a license to import machinery?
There is no general import license for machinery, but specific equipment can require certifications, permits, or agency clearances depending on what it does — for example, emissions or radiofrequency requirements. Check admissibility before shipping.
Why did my machinery cost more in duties than expected?
Usually because an additional duty applied on top of the ordinary tariff — an anti-dumping, countervailing, or special tariff tied to the product’s origin. These rates change, so confirm the current rate for your exact HTS code and country of origin.
Do I need a customs broker?
It is not legally required, but most commercial machinery importers use a licensed broker to file the entry accurately and on time, given the bond, ISF, and agency requirements involved.
The expensive mistakes in machinery imports happen on paper — a wrong classification, a missed certification, an underestimated duty — long before the equipment lands. Reidel Law Firm helps importers classify equipment, map agency requirements, and budget landed cost on flat-fee terms. Get an import compliance memo.
