What assurances exist that stolen or lost pets are not used in research?

While some research requires that dogs and cats are used, the vast majority of laboratory animals are rodents specifically bred for research. Nearly half of the dogs and cats needed for research are also bred for that purpose. Since state laws and local policies prevent many animal pounds and shelters from providing dogs and cats to research facilities, animal dealers are the primary source for the other half of the animals scientists require. These dealers must be licensed by the United States Department of Agriculture (USDA) and must adhere to Animal Welfare Act standards of care. Both dealers and research facilities can obtain dogs and cats only from specified sources and must comply with detailed record-keeping and waiting-period requirements. In addition, USDA conducts unannounced inspections of dealers and research facilities for compliance to help ensure research animals are not missing pets.