The number of animals shipped per crate varies with species and size of the animals. The animals are placed into the interior of the crates using a proprietary through-the-wall shipping chute system, so that the animals are never exposed to the environment outside the production room. Prior to packing, the crates are disinfected in a UV chamber. In addition, both the packing room and chute are disinfected prior to packing.

Once the animals are packed, the crate is properly secured.

Special procedures are implemented for immunodeficient animals. Laminar flow hoods within the packing room serve as the packing area for immunodeficient models. As with the standard crate, once packed and securely sealed, the crates are passed out of the packing room into climate-controlled vehicles for delivery.


Shipping Containers 

  • Sew Easy™ Crate

    Our Sew Easy™ crate design is easy-to-open and crush-resistant, is made of strong, tear-resistant filter material, allows for increased ventilation area, and is made from environmentally safe cardboard material. In accordance with International Air Transportation Association (IATA) regulation, the Sew Easy™ crate has an observation window to allow transportation handlers the opportunity to evaluate the contents without opening the crate, eliminating the risk of exposing animals to the environment outside of the crate.

  • Gnoto-safe® Shipper

    Given the compromised immune system of our immunodeficient models, the Charles River Gnoto-safe® shipper consists of two plastic micro-isolation cages with filtered lids, providing ample airflow while preventing airborne particulates from passing through and compromising the animals’ health status. The two micro-isolation cages fit securely into a specially-constructed crate, which has screened air holes for sufficient ventilation.

  • Shipping Container Densities

    View details about shipping container densities.



We highly recommend using ground shipping for receiving animals. Ground delivery personnel are highly trained in the transportation of time-sensitive, climate-controlled cargo, including laboratory animals. We work closely with our logistics partners to ensure appropriate protocols are in place to provide timely, safe delivery of our animals.

Under certain circumstances, truck delivery is not option. In these instances, we will arrange for air shipment.

In accordance with USDA guidelines, covered species must not be exposed to temperatures above 85° F. Since airports do not maintain temperature-controlled holding areas, problems can arise with air freight shipments, particularly during the summer months.

To provide safe and comfortable conditions for the transportation of your animals, on days of scheduled air shipments when the temperature is forecast to be above 85° F, a member of our customer service team will contact you to make alternative shipping arrangements.

When temperatures are within acceptable ranges, air shipments are limited to Mondays and Wednesdays to ensure safe and timely delivery.