Most first-time importers underestimate the process. They understand, broadly, that goods need to clear customs. What they often do not anticipate is the sequence of regulatory requirements, documentation obligations, and agency reviews that must be completed — accurately, in order, and on time — before a single shipment is released into U.S. commerce.
The consequences of getting it wrong are not minor. Misclassified products, incomplete documentation, and missed filings produce delays, financial penalties, and in some cases, refused entry. For companies in regulated industries like pharmaceuticals, biotech, and medical devices, a customs error is rarely just a logistics problem — it can cascade into regulatory exposure, supply chain disruption, and reputational risk with the agencies that govern their products.
This guide walks through the ten steps every importer must complete to move goods into the United States compliantly. It is written for first-time importers who need a clear roadmap, and for experienced logistics teams who want a structured reference they can put to work.
At a Glance: The 10-Step Import Compliance Checklist

Step 1: Obtain an Importer Identification Number
Before a single entry can be filed with CBP, the importing entity must have a valid identification number on record. This is not a formality — it is a legal prerequisite that determines who is accountable for the shipment and how CBP tracks compliance history.
The three acceptable forms of importer identification are:
- Employer Identification Number (EIN): the standard identifier for U.S. businesses, issued by the IRS and used to establish the importer’s compliance record with CBP
- Social Security Number (SSN): used by individuals importing goods without a formal business entity
- CBP-assigned number: available to foreign importers who do not have a U.S. EIN or SSN, issued directly by CBP upon application
If your business does not already have an EIN, obtaining one should be the first action item before any supplier negotiation concludes. CBP registration using CBP Form 5106 is completed by your customs broker and establishes your importer profile in ACE — the Automated Commercial Environment that processes all U.S. customs entries.
Your importer identification number is the foundation of your compliance record. Every entry you file, every duty you pay, and every inspection outcome is associated with it. Starting that record accurately matters.
Step 2: Define the Importer of Record
The Importer of Record (IOR) is the legal entity responsible for a shipment’s compliance with all applicable U.S. laws and regulations. That responsibility includes filing accurate entry documentation, paying all applicable duties and fees, and maintaining the records CBP may request during a post-entry audit.
This distinction matters more than most first-time importers realize. The IOR is not automatically your supplier, your freight forwarder, or your customs broker. It is the party who owns the compliance obligation — and the penalty exposure when something goes wrong.
Common IOR structures include:
- The U.S. buyer or consignee: the most common structure, where the domestic purchaser assumes IOR responsibility as part of the commercial transaction
- A foreign seller operating as IOR: possible under certain trade terms but operationally complex and less common
- A third-party IOR service provider: used when the buyer cannot or does not want to hold IOR status directly, though this introduces contractual complexity and cost
Defining the IOR before the first shipment moves — and documenting it clearly in your supply agreements — is not a bureaucratic exercise. It is the baseline of a defensible compliance program.
Step 3: Secure a Customs Bond
A customs bond is a financial guarantee to CBP that the importer will fulfill all legal obligations associated with the entry — including accurate declaration, duty payment, and compliance with any additional regulatory requirements. Without a bond in place, formal entry cannot be filed for shipments that require one.
The bond threshold applies to any shipment valued at $2,500 or more, goods regulated by a federal agency regardless of value, and any commercial shipment entering U.S. commerce. In practice, nearly all commercial import programs require a bond.
Bond Types
Single-entry bond: Covers one specific shipment. Appropriate for infrequent or one-time importers, but carries a higher cost per transaction and requires a new bond for every entry.
Continuous bond: Covers all entries for a 12-month period. The standard choice for any importer with regular shipment volume. The bond amount is set at 10% of the total duties, taxes, and fees paid in the prior year, with a minimum of $50,000.
Your customs broker manages the bond on your behalf and will advise on the appropriate bond type and amount based on your import program. Bond sufficiency is monitored by CBP, and an insufficient bond can result in additional security requirements or entry restrictions.
Step 4: Confirm Product Admissibility
Not every product is freely admissible into the United States. A significant number of product categories are subject to additional oversight from Partner Government Agencies (PGAs) — federal bodies that regulate their specific industries and whose requirements must be satisfied before CBP will release a shipment.
Confirming admissibility before shipping is not optional. Discovering a PGA requirement after goods have arrived at a U.S. port — without the required permits, registrations, or documentation — results in holds, detention, and in some cases, refusal of admission and destruction of cargo at the importer’s expense.
Key PGA agencies and their jurisdictions include:
- FDA (Food and Drug Administration): food, pharmaceuticals, biologics, medical devices, cosmetics, and dietary supplements. FDA-regulated products require facility registration, prior notice for food shipments, and in many cases, specific import alerts or compliance documentation
- USDA / APHIS (Animal and Plant Health Inspection Service): agricultural commodities, biological materials, animal products, and wood packaging. Phytosanitary certificates and treatment documentation are commonly required
- FCC (Federal Communications Commission): electronics, radio frequency devices, and telecommunications equipment. FCC authorization or labeling is required before entry
- CPSC (Consumer Product Safety Commission): children’s products, general consumer goods, and products subject to mandatory safety standards
- ATF (Bureau of Alcohol, Tobacco, Firearms and Explosives): firearms, ammunition, explosives, and alcohol products. Import licenses and permits are required
- EPA (Environmental Protection Agency): vehicles, engines, pesticides, and products subject to environmental regulations
For life sciences importers, FDA admissibility is not a one-time check. It is an ongoing compliance obligation tied to facility registration, product classification, and the regulatory status of every item in your import program.
Step 5: Classify Your Products Under the HTS
Every product imported into the United States must be assigned a 10-digit Harmonized Tariff Schedule (HTS) code. This classification is not a formality — it is the mechanism by which CBP determines the applicable duty rate, identifies tariff exposure, flags additional regulatory requirements, and assesses eligibility for preferential trade programs.
HTS classification is based on the product’s physical characteristics, material composition, function, and intended use — not on how the product is marketed or what the seller calls it. Two products that appear similar but differ in material or function may carry meaningfully different HTS codes, with correspondingly different duty rates and regulatory treatment.
Classification Risk: A misclassified HTS code is one of the most common and costly errors in international trade. It can result in underpayment of duties (creating liability during CBP audit), overpayment of duties (eroding margin unnecessarily), antidumping and countervailing duty exposure that was not anticipated, and loss of eligibility for free trade agreement benefits. CBP can audit entries up to five years after filing.
Classification should be performed by a licensed customs broker with expertise in your product category. For importers with complex or novel products — such as combination drug-device products, advanced biologics, or emerging biotech materials — a binding ruling request to CBP provides a legally authoritative classification determination that protects against future challenge.
Step 6: Estimate Total Landed Cost Before the Shipment Moves
Landed cost is the true cost of an imported product: everything required to get it from the supplier’s facility to your receiving dock, fully cleared and compliant. Importers who plan around product cost alone — without modeling the full landed cost — consistently encounter margin erosion, pricing miscalculations, and financial surprises that could have been avoided.
The components of total landed cost include:
- Product cost and declared customs value: the transaction value, which forms the basis for ad valorem duty calculation
- International freight and insurance: ocean or air freight cost plus marine insurance, both of which may be included in the dutiable value depending on the terms of sale
- Import duties: based on HTS classification, country of origin, and applicable tariff programs including Section 301, Section 232, and antidumping/countervailing duties
- Merchandise Processing Fee (MPF): 0.3464% of cargo value, subject to a minimum of $32.71 and a maximum of $634.62 per entry
- Harbor Maintenance Fee (HMF): 0.125% of cargo value, assessed on ocean shipments arriving at U.S. ports
- Customs brokerage and entry fees: professional fees for classification, entry filing, and clearance coordination
- Domestic freight and final delivery: drayage, trucking, and last-mile delivery to your facility or distribution point
- Warehousing and handling: applicable if goods require bonded storage, inspection, or repackaging before final distribution
A landed cost model built before the purchase order is placed is a pricing tool. A landed cost calculation done after the shipment arrives is an accounting exercise — one that often reveals problems too late to fix.
Step 7: Complete a Pre-Shipment Compliance Review
The most cost-effective point to find and fix a compliance problem is before the goods leave the supplier. Once a shipment is in transit, the options narrow. Once it arrives at a U.S. port, the leverage disappears entirely. A structured pre-shipment review is the standard of practice for experienced importers — and it is the single highest-return compliance investment available.
A thorough pre-shipment review confirms:
- HTS classification accuracy: verify that the assigned code matches the product’s actual characteristics, not its commercial description
- Declared customs value: confirm that the transaction value is accurate, complete, and consistent with the commercial invoice
- Country of origin: verify through supplier documentation that the origin declaration is accurate and supportable under CBP’s substantial transformation rules
- PGA documentation: confirm that all required permits, registrations, certificates, and prior notices are in place before loading
- Commercial invoice completeness: verify that the invoice contains all required data elements in the format CBP and PGAs require
- Packing list accuracy: confirm that the packing list matches the commercial invoice and reflects the actual contents of each container
- Wood packaging compliance: if applicable, confirm ISPM-15 treatment certification for all wood packaging materials
For importers in the life sciences, pre-shipment review should also include verification of cold chain packaging qualification, temperature monitoring device calibration, and FDA facility registration status for both the shipper and any registered establishments associated with the product.
Step 8: File the ISF and Coordinate Freight Documentation
Logistics execution and compliance documentation must move in parallel. A well-coordinated shipment is one where the freight is booked, the ISF is filed, and all documentation is assembled before the cargo reaches the origin port.
Importer Security Filing (ISF 10+2) — Ocean Freight
The ISF must be submitted to CBP at least 24 hours before cargo is loaded onto the vessel at origin. It requires ten data elements from the importer — including buyer and seller information, manufacturer details, country of origin, and HTS classification — and two additional elements from the ocean carrier.
Penalty Exposure: Late ISF filings, missing data elements, and inaccurate information each constitute separate violations carrying fines of up to $5,000. CBP also uses ISF compliance history as an input into shipment risk scoring — meaning a pattern of ISF errors increases inspection rates across your entire import program.
Core Entry Documentation
Regardless of mode, every entry requires a complete and consistent documentation package:
- Commercial invoice: seller’s declaration of the goods, their value, and the terms of sale — must include all CBP-required data elements
- Packing list: detailed breakdown of contents, weights, and measurements by carton or container
- Bill of lading (ocean) or airway bill (air): the carrier’s contract of carriage and evidence of shipment
- Customs bond: must be active and of sufficient value to cover the entry
- PGA documentation: any certificates, permits, prior notices, or registration confirmations required by applicable agencies
Discrepancies between any of these documents — inconsistent quantities, mismatched values, conflicting country of origin declarations — are among the most common triggers for CBP holds and manual review.
Step 9: Navigate CBP Entry Review and Cargo Release
When your shipment arrives at a U.S. port of entry, CBP reviews all submitted documentation and applies risk-scoring models to determine how the entry will be processed. The majority of well-documented shipments from established importers clear without inspection. But the process is not passive — it rewards preparation and penalizes gaps.
Possible Entry Outcomes
- Immediate release: CBP accepts the entry as filed. Duties are assessed and the shipment is released to the importer.
- Request for additional information (CF-28): CBP requests clarification on classification, valuation, or origin. A timely, accurate response typically resolves the matter without escalation.
- Proposed rate advance (CF-29): CBP proposes a change to the declared duty rate — most commonly due to classification or valuation disagreement. The importer can protest or accept.
- Examination or hold: CBP physically inspects the shipment or issues a hold pending additional documentation or agency review. This is when an experienced customs broker’s relationships and response speed matter most.
Following release, the Entry Summary (CBP Form 7501) must be filed within 10 days. This is the formal accounting of all duties owed and is the document CBP uses to liquidate the entry — the point at which the final duty liability is legally established.
Cargo release is not the end of the compliance process. It is the beginning of the post-entry phase, which carries its own obligations, deadlines, and audit risk.
Step 10: Maintain Post-Entry Compliance and Records
CBP’s authority does not end when your shipment is released. Under 19 U.S.C. §1508, importers are required to maintain all records related to an importation for a minimum of five years from the date of entry. This includes commercial invoices, packing lists, bills of lading, classification worksheets, correspondence with suppliers, and any documents submitted to or received from CBP or PGAs.
Post-entry compliance obligations also include:
- Monitoring liquidation status: CBP has up to one year from entry to liquidate, and importers should track liquidation notices to identify unexpected duty changes or rate advances
- Filing post-entry amendments: if an error is discovered after release, a prior disclosure or post-entry amendment can reduce or eliminate penalty exposure — but only if filed voluntarily before CBP initiates an inquiry
- Responding to CBP audits: CBP’s Regulatory Audit division conducts focused assessments and comprehensive audits of importer compliance programs. A five-year record of clean, well-documented entries is the foundation of a defensible response
- Maintaining country of origin documentation: supplier certifications and origin evidence must be retained and kept current, particularly as supply chain structures evolve
- Monitoring tariff and regulatory changes: HTS rates, Section 301 lists, antidumping orders, and PGA requirements change. Importers whose classification and compliance work is static — not updated as the regulatory environment shifts — accumulate exposure over time
The importers who fare best in CBP audits are the ones who treat compliance as a continuous program, not a one-time event. Five years of well-maintained records is the difference between a routine review and a significant disruption.
How Euro-American Worldwide Logistics Supports the Full Import Process
Importing into the United States is a compliance-intensive process that requires expertise at every step — from initial registration through post-entry recordkeeping. At Euro-American Worldwide Logistics, we provide the full spectrum of customs brokerage, freight forwarding, and logistics support that importers need to execute this process accurately and efficiently.
Our customs brokerage division — led by Karen A. Busenburg, the first female licensed Customs Broker in Massachusetts and one of the first five in the United States — brings more than 70 combined years of brokerage experience to every entry we handle. That expertise is not theoretical. It is applied to every classification decision, every filing, and every hold we work to resolve on behalf of our clients.
- Importer setup and CBP registration (Form 5106): establishing your importer profile accurately in ACE from day one
- HTS classification and regulatory review: product-level classification by licensed brokers with expertise in life sciences, industrial, and commercial import categories
- Customs bond management: selection, procurement, and monitoring of bond sufficiency as your import program grows
- ISF filing and pre-shipment compliance: accurate, on-time ISF submissions that establish a clean compliance record with CBP
- Entry preparation and CBP coordination: complete entry documentation, proactive hold management, and direct CBP liaison when issues arise
- PGA coordination: FDA, USDA, FCC, and other agency filings managed as part of the clearance process, not as an afterthought
- Post-entry compliance support: liquidation monitoring, post-entry amendments, and audit response assistance
- Integrated freight and warehousing: our brokerage is part of a fully integrated 3PL platform that includes air and ocean freight forwarding, cGMP-compliant warehousing, and final-mile delivery
For life sciences companies where import compliance intersects with FDA regulatory obligations, product integrity requirements, and supply chain continuity — an integrated partner who understands both the logistics and the regulatory environment is not a convenience. It is a strategic necessity.
Conclusion
Importing into the United States is a structured, regulated process that rewards careful preparation and penalizes shortcuts. Each of the ten steps in this guide exists for a reason — and each one carries real consequences when executed poorly.
The importers who build efficient, compliant import programs are not the ones who figured it out as they went. They are the ones who invested in accurate classification, clean documentation, and experienced partners before the first shipment moved — and who treat compliance as an ongoing program rather than a one-time project.
Euro-American Worldwide Logistics delivers the expertise, infrastructure, and oversight needed to build a compliant, efficient import program from the ground up — and to keep it running as your business and the regulatory environment evolve. Contact us today!









