Please bring your dog's current vaccination documents to their appointment, along with a standard leash or collar. (prideandpedigree.com)
While policies differ from place to place, what you as a potential cat owner should ensure is that the cats on sale or for adoption are treated and displayed in a humane and hygienic manner with proper vaccination documents (if required). (petsmagazine.com.sg)
Any effective passport system would rely on officials being confident that the imported animal was the same as the one described in the vaccination documents. (newscientist.com)