Auditing Packaging Suppliers After 2026 Tariffs

Why Supplier Auditing Matters in 2026

The surge in reshoring and nearshoring caused by tariff uncertainty has increased demand for North American converters. Many new facilities are expanding quickly to capture this business, but not all meet the compliance, traceability, or process control standards expected by industrial and eCommerce packaging buyers.

A structured audit process ensures:

• Consistent quality across corrugated, folding carton, or display production.
• Regulatory compliance with ASTM, ISO, and FSC® standards.
• Supply continuity through verified capacity and certified material sources.
• Accurate cost forecasting to reflect total landed cost and risk reduction.

Pre-Audit Research and Documentation

Before engaging new suppliers, buyers should compile baseline criteria and supporting documentation to maintain sourcing consistency:

• FSC®, SFI®, and ISO certification requirements
• Corrugated and paperboard testing standards (ECT, BCT, TAPPI)
• Reference samples, structural specs, and assembly instructions
• Forecasted volumes, replenishment schedule, and SKU priorities

This preparation allows accurate comparison between U.S., nearshore, and legacy overseas programs.

Key Stages of a Packaging Supplier Audit

Facility Review and Process Mapping

Perform a virtual or on-site walkthrough to evaluate:

• Equipment (corrugator, folder-gluer, digital press, die cutter)
• Preventive maintenance and production uptime
• Quality checkpoints during converting and finishing
• Level of in-house vs. subcontracted work

Detailed process mapping reveals throughput potential and operational control.

Quality and Compliance Verification

Request verifiable documentation that supports performance and sustainability claims:

• FSC® or SFI® Chain of Custody certificates
• ISO 9001:2015 or 14001 systems
• ECT, BCT, and Mullen test reports for corrugated
• ISTA or ASTM validation for shipping durability

A supplier’s ability to present accurate, dated certifications is often a clear indicator of overall discipline.

Material Sourcing Transparency

Tariff classification depends on component origin, so material traceability is essential. Audit material flow from paper mills to finished packaging:

• Country of origin for linerboard and medium
• Source of inks, coatings, and adhesives
• Validation of recycled or sustainable content claims

Suppliers unable to verify their raw material chain risk future tariff reclassification or customs delays.

Capacity and Lead Time Validation

Tariff-related reshoring has increased demand across North America, making production capacity a top qualification factor. Validate claims by testing:

• True throughput on pilot orders
• Changeover and setup times
• On-time performance during seasonal peaks

Verified capacity ensures consistent delivery and pricing stability throughout tariff cycles.

Communication and Issue Resolution

Responsiveness directly impacts speed to market. During onboarding, evaluate:

• Response time for quotes and samples
• Accuracy of proofing and revision cycles
• Corrective action tracking for defects or misprints

Suppliers with strong internal communication typically maintain better production accuracy and customer satisfaction.

Financial and Operational Stability

Rapid industry expansion brings new entrants, not all of whom are financially stable. Review:

• Operating history and client references
• Insurance, certifications, and credit terms
• Equipment investment and future growth plan

Financially grounded suppliers reduce the risk of production interruptions during tariff-driven market shifts.

Integrating Audited Suppliers into Procurement Systems

Once qualified, add new suppliers into procurement systems with metrics for:

• On-time delivery and defect rate
• Price stability and freight consistency
• Certification renewal schedules
• Environmental and compliance documentation

Quarterly supplier scorecards help maintain consistency and verify ongoing readiness as tariff conditions evolve.

Final Considerations for Buyers

As tariffs continue to influence global sourcing, the strongest packaging programs will combine regional diversification with rigorous supplier auditing. Buyers who integrate traceability, compliance, and performance verification into procurement can maintain cost stability and tariff protection without compromising quality.

References

• U.S. International Trade Commission (USITC). Trade Policy Developments 2026.
• Institute of Packaging Professionals (IoPP). Supplier Qualification Guidelines.
• International Safe Transit Association (ISTA). Testing Standards for Transport Packaging.
• Forest Stewardship Council (FSC®). Chain of Custody Certification Requirements.