Logistics professional inspecting a sealed cargo container at a US port

port of entry cargo seal requirements cbp fda usda rules

A cargo seal is one part of an import-control system, not a substitute for the documents, declarations, permits, or inspections required at the border. Logistics teams need to know what an agency requires for entry and what seal records prove about custody before inspection.

In practice, port of entry cargo seal requirements cbp fda usda rules involve three connected controls: meet the responsible agency's entry requirements, protect cargo integrity with a properly identified seal when appropriate, and maintain records that reconcile the seal, shipment, and handoffs. Exact requirements depend on the product and entry circumstances, so confirm current instructions with the relevant agency or broker.

An intact seal does not prove that regulated cargo is admissible. Separate CBP's border-enforcement role from FDA and USDA requirements, then build the seal workflow around the cargo and its inspection path. For broader product-selection context, review this shipping container seal guide.

Discuss your cargo seal requirements with STiER.

What Do Port of Entry Cargo Seal Requirements Cover Under CBP, FDA, and USDA Rules?

There is no single cargo-seal rule for every shipment entering the United States. What teams call port of entry cargo seal requirements CBP FDA USDA rules is a combination of agency entry controls, physical cargo-integrity practices, and company procedures that make a shipment easier to verify. A seal supports that system, but it does not replace permits, declarations, labeling, packaging, or other required entry information.

CBP enforces laws for partner agencies, including USDA and FDA. The entry question is therefore whether goods are permitted, properly declared, and supported by the documents or permits required for that cargo and entry process. Prohibited items are forbidden by law from entering the United States. Restricted items may enter only when special federal licenses or permits are obtained.

A correctly applied tamper-evident or high-security seal helps show whether an access point remained closed between authorized handoffs. Record the seal number, inspect its condition, compare it with the shipping record, and investigate mismatches or visible damage. CTPAT-oriented programs commonly use unique serialization, written verification procedures, training, and seal logs. These controls do not mean that CBP, FDA, or USDA requires one universal seal format.

Three layers of port-of-entry seal readiness.
Layer Control Limit
Agency Entry documents and permits A seal is not an entry decision.
Integrity Seal identity and condition A seal does not prove cargo admissibility.
Audit Handoff and exception records One seal format may not fit every load.

What Does CBP Check When Inspecting Cargo Seals at US Ports of Entry?

CBP inspection of a sealed shipment can include comparing the seal number and physical condition with carrier, cargo, and entry records. Officers may also evaluate whether the shipment has the documents, declarations, permits, packaging, and labeling required for its contents. The exact review depends on the cargo, origin, declared information, and partner-agency rules.

How Are Seal Identity and Condition Reviewed?

A serialized seal gives an inspector a reference point. The number should match the seal record, bill of lading or other transport documentation, and the relevant loading or handoff log. If the seal appears altered, replaced, damaged, or inconsistent with the recorded handoff, create an exception and investigate it. Do not silently overwrite the original record.

For regulated biological materials, CBP states that imports must be documented, labeled, packaged, placarded, and declared under relevant international, federal, and state regulations. Required documents or permits must accompany applicable imports at the CBP port of entry. Requirements can depend on source, quantity, production method, packaging, and other factors.

Which Shipment Documents and Declarations Matter?

  • Are the cargo description, quantity, origin, and consignee information consistent across entry and transport records?
  • Have applicable declarations been made for regulated contents?
  • Are required licenses, permits, or supporting documents present at arrival?
  • Does the packaging and labeling match the product and applicable rules?

If a seal or record does not match, preserve the available evidence, identify the last verified handoff, and notify the carrier, broker, and internal compliance contact. Follow CBP or partner-agency instructions.

How Do FDA Rules Affect Sealed Food and Regulated Cargo?

A seal does not determine whether FDA requirements apply. The relevant questions are what the shipment contains, whether it is offered for import, how it is declared, and what the agency requires at entry. FDA requires prior notification for imported food, including animal feed. Review the FDA prior notice guidance for primary rule and scope.

Connect the entry record to the physical load by recording the container or trailer number, seal number, product description, entry information, prior-notice details when applicable, and responsible broker or carrier. Missing or inconsistent information can create delays regardless of whether the doors are secured.

What Timing and Release Guidance Should Food Importers Confirm?

Confirm filing timing, data requirements, and port procedures with the responsible broker and agency before dispatch. During an FDA review, do not break the seal, unload, relabel, or redirect the shipment merely because it is waiting for an answer. Document any authorized opening, replacement, or inspection event.

Do not treat a carrier update or intact seal as proof that FDA released the cargo. Preserve any FDA release message, timestamp, shipment reference, and seal record together. CBP policy separately addresses containerized cargo opened during a CBP inspection and may call for an ISO/PAS 17712-compliant high-security bolt seal marked "CBP" with a unique serial number. That policy is not a claim that every FDA shipment needs a cargo seal.

Review your serialized seal and documentation workflow with STiER.

What Do USDA and FSIS Rules Require for Agricultural and Animal Products?

USDA-related controls depend on the product, origin, intended use, and risk. A cargo seal can help preserve chain of custody, but it does not replace an agricultural declaration, permit, certificate, eligibility determination, label, or inspection. Confirm current requirements for the exact commodity with the agency, customs broker, and carrier.

What Agricultural Controls May Apply Under USDA and APHIS?

Foreign agricultural products can carry plant pests or animal diseases, so CBP guidance identifies meats, fruits, vegetables, plants, seeds, soil, animals, and plant or animal products as items that must be declared. Some plants and plant parts intended for growing may require an advance foreign phytosanitary certificate. Other biological materials may require agency documents or permits.

Keep the seal record aligned with those documents. Record the original serial number, container or trailer number, loading handoff, and condition at arrival. If a replacement seal is applied, document who applied it, why, and which number superseded the original.

What Does FSIS Require for Meat, Poultry, and Egg Products?

FSIS requirements address safety, wholesomeness, adulteration, labeling, and packaging. Covered products must originate from countries and establishments certified as eligible to export to the United States, and the FSIS Import and Export Library identifies eligible products. After applicable CBP forms and APHIS animal-disease requirements are met, covered products must be presented for reinspection at an official import inspection establishment.

Before dispatch, verify origin, establishment eligibility, product category, documents, labels, seal number, and inspection destination. For related controls in regulated facilities, review bonded warehouse seal standards.

How Should Importers Prepare Seal Documentation for Multi-Agency Inspections?

A seal record should let an authorized reviewer reconstruct what happened without relying on memory. Treat it as one part of inspection readiness, alongside entry documents, permits, declarations, and agency instructions. The following is a recommended internal control, not a universal CBP, FDA, or USDA form requirement.

  1. What Should Be Confirmed Before Arrival?

    Build a shipment file with commercial and entry documents, applicable permits, declarations, agency instructions, shipment reference, expected seal number, container or trailer identifier, carrier, and planned arrival location. For regulated materials, confirm that required documents accompany the importation.

  2. What Should Be Recorded When the Cargo Is Sealed?

    Record the unique seal number, seal type, container or trailer number, application date and time, location, applicator, pre-application condition, and authorizing document. CTPAT-oriented programs use ISO 17712:2013 high-security seals, unique serialization, written procedures, training, and seal logs. See the ISO 17712 seal requirements checklist.

  3. How Should Each Handoff Be Documented?

    Require the receiving party to compare the physical seal with the record before accepting custody. Record the time, location, seal number, condition, person completing the check, and any vehicle or custody change. If the number or condition differs, preserve the original entry and create an exception record.

  4. What Should Be Available During a Port Inspection?

    Make the seal log, entry documents, permits, declarations, and chain-of-custody records retrievable by shipment number. Include the original seal condition and any inspection findings, notifications, photographs, replacement number, and final disposition.

Logistics workers inspecting a cargo container seal at handoff

What Happens When a Cargo Seal Fails Inspection at a US Port of Entry?

Treat a missing, mismatched, damaged, or manipulated seal as a controlled exception, not an automatic verdict about the shipment. If an authorized official directs the carrier or facility to stop, hold, or divert the load, follow that instruction before moving, unloading, or opening it. Do not replace, cut, or manipulate the seal simply to keep the shipment moving.

Before the seal is disturbed, record the container or trailer number, original seal number, type, visible condition, location, date, time, and person who identified the exception. Take permitted photographs and compare the physical number with the bill of lading, seal log, loading record, handoff record, and entry documents. Notify the importer, carrier, broker, facility security lead, and other responsible parties.

Follow agency or broker instructions for examination, release, resealing, sampling, return, quarantine, or another disposition. Record the finding, instructions, new seal number if applicable, notifications, and final disposition. Do not label a shipment compliant solely because a replacement seal was applied. For related procedures, review cargo seal tampering procedures.

Get help planning a documented cargo seal control process.

What Are the Most Common Questions About Port-of-Entry Cargo Seals?

What Is a CBP Seal?

There is no single universal seal format for every shipment at a US port of entry. A uniquely identified, tamper-evident seal helps verify cargo integrity, reconcile handoffs, and document exceptions. Confirm cargo-specific requirements with CBP or your broker.

Do FDA Rules Apply to Every Sealed Shipment?

No. FDA requirements depend on the product and entry circumstances. A seal does not replace prior notice, supporting entry information, permits, declarations, or agency review.

What Agricultural Products Must Be Declared?

Requirements depend on the agricultural item, origin, and intended use. Declare applicable items and confirm permits or certificates through current CBP and USDA guidance before arrival.

What Records Should Importers Retain?

Maintain the seal number and condition, container or trailer identification, shipment documents, loading and handoff checks, inspection findings, exceptions, and final disposition. Connect each seal to the shipment it protected.

How Can Teams Review Their Cargo Seal Requirements?

Clear seal controls help logistics teams align serialized cargo seals with documentation, handling procedures, and application requirements. STiER can discuss the shipment details and identify an appropriate next step without treating a seal as a substitute for agency guidance.

Contact STiER to request a quote or discuss your cargo seal requirements.

Back to blog