Shipping biological samples internationally involves much more than selecting a carrier and arranging transportation. Blood, tissue, cell cultures, DNA and RNA, diagnostic specimens, research samples, and other biological materials may be subject to specific transportation, packaging, documentation, customs, and government requirements. At the same time, many of these materials must remain within strict temperature conditions throughout transit.
For this reason, the success of an international biological shipment often depends on decisions made before the shipment ever leaves its origin.
Understanding the material, its intended use, its regulatory status, its temperature requirements, and the requirements of the destination country should therefore be part of shipment planning—not questions addressed after transportation has already begun.
Start With the Material, Not the Transportation
One of the most important questions in biological logistics is also one of the most basic: What exactly is being shipped?
A description such as “biological samples” may not provide enough information to determine how a shipment should be prepared or transported.
Depending on the material, relevant information may include:
- whether it is of human, animal, plant, microbial, or synthetic origin;
- whether it contains or may contain an infectious agent;
- whether it is viable, non-viable, inactivated, fixed, purified, or preserved;
- whether it is intended for research, diagnosis, manufacturing, clinical use, treatment, or another purpose;
- whether it has been exposed to pathogens;
- its quantity and concentration, when relevant; and
- its required storage and transportation temperature.
These distinctions can affect several aspects of the shipment, including dangerous goods classification, packaging, labeling, airline acceptance, customs clearance, and government agency requirements.
The logistics process should therefore begin by establishing an accurate description and intended use of the material.
Determine the Transportation Classification
Not every biological material is classified in the same way for transportation. Depending on its characteristics, a shipment may fall under requirements applicable to infectious substances, biological substances, genetically modified organisms or microorganisms, exempt specimens, or other classifications.
For example, infectious substances transported by air may fall into Category A or Category B depending on the level of risk and applicable dangerous goods regulations. Category B biological substances are generally classified as “UN3373 Biological Substances, Category B”, while Category A materials are subject to more stringent requirements.
Other specimens may qualify for an exemption when the applicable criteria are satisfied. This determination should not be based simply on the fact that a package contains blood, tissue, cells, or another biological material. The characteristics and known or reasonably expected risks associated with the material must be considered.
Incorrect classification can lead to improper packaging or labeling and may ultimately result in rejection at airline tender or other transportation delays.
Establish the Required Temperature Range
Once the material and its classification are understood, the next question is: What temperature must be maintained during transportation?
Biological materials may require conditions such as:
- controlled room temperature;
- refrigerated conditions, commonly +2°C to +8°C;
- frozen conditions;
- deep-frozen conditions such as −80°C; or
- cryogenic temperatures.
The required temperature should be established by the shipper, laboratory, manufacturer, sponsor, or other party responsible for the material.
Only then should the appropriate packaging system and coolant solution be selected. For example, a shipment requiring dry ice presents different operational considerations from a refrigerated shipment using Phase Change Material (PCM) pre-conditioned gel panels. Cryogenic shipments using dry shippers require yet another approach.
Temperature control should therefore be designed around the material—not the other way around.
Packaging Is the Shipment’s Thermal Shield
Temperature-controlled packaging is not simply a container. It is part of the system protecting the material throughout transportation.
The packaging configuration should account for factors such as:
- required temperature range;
- expected transit time;
- ambient conditions;
- routing;
- potential delays;
- coolant duration;
- replenishment possibilities;
- regulatory classification; and
- physical protection of the contents.
For regulated biological materials, additional packaging requirements may apply, including primary and secondary receptacles, absorbent material, rigid outer packaging, pressure resistance, quantity limitations, and specific marks or labels.
Dry ice also requires special consideration. When used as a refrigerant in air transportation, its presence, quantity, packaging, marking, and labeling, as well as documentation, are subject to international regulations for dangerous goods handling and transportation.
A package capable of maintaining temperature under normal circumstances may not necessarily provide sufficient protection when a shipment experiences an unexpected delay. For international shipments, contingency planning should therefore be considered as part of packaging selection.
Documentation Must Accurately Describe the Shipment
Documentation is one of the most common points of failure in international transportation. A commercial invoice or other shipping documentation should accurately describe what is being transported and provide the information required for customs and regulatory review.
Generic descriptions such as “samples” or “research materials” may be insufficient. A more useful description identifies the material and, when appropriate, its intended use. The exact wording will depend on the shipment. For example, an appropriate and accurate description could be “Exempt Animal Specimens – Mouse Brain Tumor Tissue Samples”.
Documentation may also need to identify information such as:
- shipper and consignee;
- Importer of Record;
- country of origin;
- description;
- intended use;
- quantity;
- value;
- Harmonized Tariff Schedule classification;
- permit information;
- applicable regulatory statements; and
- dangerous goods information.
The information appearing across the commercial invoice, air waybill, permits, labels, and other supporting documentation should also be consistent. Small inconsistencies can become significant when customs authorities, airlines, brokers, or government agencies are trying to determine what a shipment contains and whether it is admissible.
Determine Import Requirements Before Shipping
International transportation does not end when the aircraft arrives. The material must also be legally admissible into the destination country. In the United States, for example, biological materials may fall under the jurisdiction of different government agencies depending on the material and its intended use.
These may include:
U.S. Customs and Border Protection (CBP)
CBP is involved in the importation and entry process and works with other government agencies responsible for determining admissibility.
U.S. Food and Drug Administration (FDA)
Certain biological products, human cells and tissues, drugs, medical devices, and related products may fall under FDA jurisdiction.
However, regulatory status depends heavily on intended use. Biological specimens intended solely for clinical laboratory testing or basic scientific research, and not intended for prevention, treatment, diagnosis, or cure in humans, may fall outside FDA regulation in circumstances described by the agency.
U.S. Department of Agriculture (USDA/APHIS)
Certain animal-derived materials, animal pathogens, organisms, vectors, plant-related materials, and other agricultural biological materials may require supporting documentation or permits from the United States Department of Agriculture and its different divisions.
Centers for Disease Control and Prevention (CDC)
Certain infectious biological agents, infectious substances, and vectors capable of causing disease in humans may be subject to CDC import requirements.
U.S. Fish and Wildlife Service (USFWS)
Wildlife-derived specimens and materials involving protected species may be subject to USFWS requirements and, in some circumstances, CITES documentation.
Not every biological shipment requires approval from every agency. The objective is to determine which requirements actually apply to the specific material before it is shipped.
Research Use Does Not Automatically Eliminate Import Requirements
One common misconception is that a material is automatically exempt from government requirements because it is being shipped for research. That is not necessarily the case. The intended use is important, but so are the origin, composition, species, pathogen exposure, regulatory status, and other characteristics of the material.
For example, FDA states that certain biological specimens intended solely for clinical laboratory testing or basic scientific research are not regulated by FDA when they are not intended for prevention, treatment, diagnosis, or cure of disease in humans. That does not mean the shipment is automatically exempt from requirements administered by CBP, USDA/APHIS, CDC, USFWS, or other authorities. “Research use” should therefore be treated as relevant regulatory information—not as a universal exemption.
Verify That the Shipment Is Ready Before It Moves
Time-critical shipments create pressure to move quickly. But moving before the shipment is ready can ultimately create a much longer delay.
Before pickup or airline tender, the parties involved should confirm, as applicable, that:
- the material has been accurately identified;
- the transportation classification has been determined;
- the required temperature range is known;
- appropriate packaging has been selected and conditioned;
- required marks and labels are correct;
- documentation is complete and consistent;
- import or export permits have been obtained when required;
- customs and government agency requirements have been evaluated;
- the consignee and Importer of Record arrangements are established;
- airline acceptance requirements have been considered; and
- contingency plans exist for foreseeable delays.
This preparation is particularly important for temperature-sensitive shipments. A shipment held because of missing documentation or regulatory questions may continue consuming its available thermal duration while the issue is being resolved. For biological logistics, regulatory readiness and temperature protection are therefore closely connected.
The Fastest Shipment Is Often the One Prepared Correctly
In time-critical logistics, speed matters, but speed should not be confused with moving before a shipment is ready.
A biological shipment that is collected immediately but later rejected by an airline, held by customs, or delayed because of missing permits may lose far more time than a shipment that was properly prepared before pickup.
Effective biological logistics requires coordination between the scientific, regulatory, customs, packaging, and transportation aspects of the shipment.
The objective is not simply to move a package from one location to another. It is to move the material under the required conditions, with the required documentation, through the appropriate regulatory process, and to the intended recipient without compromising its integrity.
Planning an International Biological Shipment?
Kolob Express provides specialized logistics support for Life Sciences & Healthcare shipments worldwide, including biological and research materials.
Our capabilities include temperature-controlled transportation, domestic and international airfreight service, validated packaging solutions, dry ice replenishment, data loggers, customs clearance, shipping documentation advisement, pickup and delivery, and government-compliance-driven logistics.
Because biological shipments can involve different transportation and regulatory requirements depending on the material, origin, destination, and intended use, requirements should be evaluated on a shipment-specific basis.
If you are planning an international biological shipment, contact Kolob Express before the shipment moves so the transportation, temperature-control, documentation, and regulatory requirements can be evaluated in advance.
Frequently Asked Questions
Can biological samples be shipped internationally?
Yes. Biological samples can be shipped internationally, but applicable requirements depend on the material, transportation classification, origin, destination, intended use, temperature requirements, and government regulations that apply to the shipment.
Do all biological samples require dangerous goods shipping?
No. Transportation requirements depend on the characteristics and classification of the material. Some infectious substances are regulated as Category A or Category B, while other specimens may qualify for exemptions when the applicable criteria are met.
Can biological samples be shipped with dry ice?
Yes, when dry ice is appropriate for the required temperature conditions. However, dry ice used in air transportation is itself regulated as a dangerous good and is subject to applicable packaging, marking, labeling, quantity, and documentation requirements.
Do biological samples require an import permit to enter the United States?
Not necessarily. Permit and regulatory requirements depend on what the material is, its origin, intended use, species or pathogen associations, and the jurisdiction of agencies such as FDA, USDA/APHIS, CDC, or USFWS.
Who should determine the required shipping temperature?
The required temperature should be established by the party responsible for the material, such as the laboratory, manufacturer, sponsor, researcher, or other qualified party. The logistics and packaging strategy should then be designed around that requirement.
What information is needed before arranging an international biological shipment?
At minimum, the logistics provider may need an accurate description of the material, origin and destination, intended use, transportation classification when applicable, required temperature range, quantity, packaging information, and relevant import or export documentation.
Regulatory References
- U.S. Customs and Border Protection (CBP) — Importing Biological Materials into the United States
- U.S. Food and Drug Administration (FDA) — Importing Biologics and CBER-Regulated Products
- U.S. Food and Drug Administration (FDA) — Importing CBER-Regulated Products: Clinical Laboratories and Basic Scientific Research
- U.S. Department of Agriculture, APHIS — Importation and Transportation of Organisms and Vectors
- International Air Transport Association (IATA) — Applicable Dangerous Goods Regulations and infectious substances guidance
This article provides general logistics information and is not legal or regulatory advice. Requirements vary according to the material, origin, destination, intended use, mode of transportation, and applicable regulations.