The Importer's Checklist: 8 Things You Can't Afford to Miss Before Your Next Shipment
Importing goods into the United States has never been more complex. With evolving regulations, stricter compliance requirements, and increased scrutiny from Customs and Border Protection (CBP), even experienced importers can find themselves facing costly delays, penalties, or seized shipments.
The stakes are higher than ever in 2025. A single missed requirement can result in thousands of dollars in demurrage fees, storage costs, and regulatory penalties: not to mention the devastating impact on your supply chain and customer relationships.
This comprehensive checklist covers the eight critical items that separate successful importers from those who struggle with customs complications. Whether you're a first-time importer or looking to refine your process, these requirements form the foundation of compliant, cost-effective importing.
1. Verify Product Compliance and Import Restrictions
Before you even think about placing an order, confirm whether your products fall under the jurisdiction of regulatory agencies like the FDA, USDA, EPA, FCC, or CPSC. This single step can save you from shipment seizures and thousands in storage fees.
Many products require special licenses, testing certificates, or approvals before they can legally enter the U.S.:
- Electronics: Need FCC certification for radio frequency emissions
- Food and cosmetics: Require FDA registration and facility compliance
- Toys and children's products: Must meet CPSC safety standards and testing requirements
- Textiles: Subject to fiber content labeling and country-of-origin marking rules
- Medical devices: Require FDA clearance or approval before importation
Action Step: Contact the relevant regulatory agency directly or work with your customs broker to verify compliance requirements. Document all certifications and approvals: you'll need them for customs clearance.

2. Obtain the Correct HTS Classification
The Harmonized Tariff Schedule (HTS) code is arguably the most critical element of your import process. Get this wrong, and you're looking at duty overpayments, CBP audits, or costly reclassification procedures.
Your 10-digit HTS code determines:
- Duty rates you'll pay (ranging from 0% to over 30%)
- Special trade program eligibility (USMCA, GSP, etc.)
- Statistical reporting requirements
- Whether your product can legally enter the U.S.
Common Classification Mistakes to Avoid:
- Using supplier-provided codes without verification
- Choosing codes based solely on lowest duty rates
- Failing to account for product modifications or enhancements
- Ignoring specific use or material composition requirements
Best Practice: Have a licensed customs broker review and confirm your HTS classification before your first shipment. The small upfront investment prevents significant compliance issues down the road.
3. Vet Your Supplier Thoroughly
Your overseas supplier becomes your partner in U.S. import compliance. A supplier who doesn't understand U.S. documentation requirements can derail your entire operation.
Critical Supplier Evaluation Points:
- Experience shipping to U.S. markets
- Understanding of commercial invoice accuracy requirements
- Ability to provide country-of-origin certifications
- Knowledge of proper product marking and labeling
- Track record with timely, complete documentation
Red Flags to Watch For:
- Reluctance to provide detailed product specifications
- Inability to confirm country-of-origin for all components
- Poor English communication on commercial documents
- History of documentation errors with other U.S. customers
Verification Strategy: Request sample commercial invoices and packing lists before placing orders. Review their understanding of Incoterms and ensure they can provide all required certifications for your product category.
4. Prepare All Critical Pre-Shipment Documents
Incomplete or inaccurate documentation is the #1 cause of customs delays. Your shipment cannot clear without proper paperwork, and errors discovered after arrival result in expensive storage fees while corrections are made.
Essential Documents Checklist:
Commercial Invoice:
- Seller and buyer complete contact information
- Detailed product descriptions (not generic terms)
- Correct HTS classification codes
- Accurate unit values and total shipment value
- Clear Incoterms designation
- Country-of-origin for each line item
Packing List:
- Must precisely match commercial invoice quantities
- Individual box weights and dimensions
- Detailed contents of each package
- Proper product identification numbers or SKUs
Bill of Lading (Ocean) / Air Waybill:
- Consistent shipper/consignee information across all documents
- Accurate cargo descriptions matching invoice
- Proper notation of any special handling requirements
Additional Certifications (when required):
- Certificates of origin
- FDA, USDA, or other regulatory approvals
- Product testing reports and compliance certificates
Pro Tip: Create digital document templates and maintain organized files. CBP may request these documents at any point during the import process, and quick access prevents delays.

5. File the Importer Security Filing (ISF) on Time
For ocean shipments, the ISF must be transmitted at least 24 hours before your vessel departs the foreign port. Late or inaccurate ISF filings result in automatic penalties starting at $5,000 per violation.
ISF Requirements Include:
- Seller name and address
- Buyer name and address
- Importer of record number (EIN)
- Consignee number
- Manufacturer (or supplier) name and address
- Ship-to party name and address
- Country-of-origin information
- Commodity HTS number
- Container stuffing location
- Consolidator (stuffer) name and address
Critical Timing: Your customs broker typically files the ISF on your behalf, but you must provide accurate information well in advance. Last-minute changes can trigger penalties even if the original filing was timely.
6. Secure a Customs Bond
No bond, no entry. A customs bond guarantees payment of duties, taxes, and potential penalties to CBP. Without proper bond coverage, your shipment sits in customs limbo indefinitely.
Bond Types:
- Single Transaction Bond: Covers one specific shipment (typically 10% of shipment value + duties)
- Continuous Bond: Covers multiple shipments throughout the year (minimum $50,000 coverage)
When You Need a Continuous Bond:
- Annual import value exceeds $50,000
- Multiple shipments per year
- Importing regulated goods requiring additional oversight
Selection Criteria: Work with a licensed customs broker or surety company to determine appropriate coverage levels. Insufficient bond amounts can delay clearance and require supplemental bonds.

7. Choose a Customs Broker and Strategic Port of Entry
Your customs broker becomes your compliance lifeline. For regulated products, complex classifications, or high-value shipments, professional customs clearance is essential for smooth operations.
Customs Broker Selection Criteria:
- Licensed and bonded with CBP
- Experience in your product category
- Understanding of applicable regulations (FDA, USDA, etc.)
- Electronic filing capabilities through ACE system
- Established relationships with examination facilities
Port Selection Strategy:
Your port of entry affects transit times, costs, and clearance efficiency:
- Los Angeles/Long Beach: Ideal for Asian imports, extensive examination facilities
- New York/New Jersey: East Coast gateway, strong consolidation services
- Miami: Latin American imports, specialized perishable handling
- Chicago: Central distribution, excellent rail connections
Consideration Factors:
- Final destination proximity
- Carrier service availability
- Examination facility capabilities for your product type
- Congestion levels and average clearance times
8. Establish a Comprehensive Document Retention System
CBP requires you to maintain all import-related records for five years. This isn't just a compliance formality: organized record-keeping protects you during audits, supports duty refund claims, and demonstrates good faith compliance efforts.
Required Document Categories:
- Commercial invoices and packing lists
- Bills of lading and transportation documents
- Customs entries and supporting documents
- Payment records (duties, taxes, fees)
- Correspondence with CBP or other agencies
- Certificates, licenses, and regulatory approvals
Best Practices for Document Management:
- Digital Backup System: Scan and store documents in searchable formats
- Organized Filing Structure: Sort by shipment date, entry number, or product category
- Regular Access Testing: Ensure you can quickly retrieve any document upon request
- Backup Storage: Maintain copies in multiple locations or cloud storage systems
Audit Protection: Well-organized records demonstrate compliance intent and can significantly reduce penalties if CBP discovers issues during focused assessments or audits.
Your Next Steps: Turning Knowledge into Action
The difference between successful importing and costly mistakes often comes down to preparation and attention to detail. Each item on this checklist serves as a critical checkpoint in your import process: skip any of them, and you're inviting delays, penalties, and supply chain disruptions.
Immediate Action Items:
- Review your current supplier relationships against the vetting criteria outlined above
- Verify HTS classifications for all your imported products with a customs broker
- Assess your document preparation process and create standardized templates
- Establish relationships with qualified customs brokers and freight forwarders
- Implement a digital document retention system for all import records
Remember, importing compliance isn't just about avoiding penalties: it's about building a reliable, cost-effective supply chain that supports your business growth. Every dollar spent on proper preparation saves multiples in avoided delays, storage fees, and compliance costs.
At ARI Shipping Corporation, we've guided countless importers through these critical compliance requirements. Our experienced team understands the complexities of modern importing and can help ensure your shipments clear customs efficiently and cost-effectively.
Ready to streamline your import operations? Contact our customs compliance specialists today for a consultation on your specific importing requirements. We'll help you build a bulletproof import process that protects your bottom line and keeps your supply chain moving smoothly.
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