USDA - APHIS - 7001 health certificate
Copy of owner's passport
We used a cat crate approximately 24x16.5x14 inches. Duct taped the openings on the sides and back to avoid drafts and screening on the front of the crate. We then added a rodent water bottle on outside with attachable dish inside to catch any leaks so crate stayed dry.
Inside we used absorbent bedding material, timothy hay and lots of romaine lettuce, carrots for the moisture plus included the food pellets. The guinea pigs fared well with the travel and are now home in Frankfurt.