We all know dogs or cats who were adopted from an animal shelter or rescued by a kind person. But some pets aren’t as fortunate and wind up in the terrifying world of “Class B” dealers, who buy up animals, transport them to holding facilities and then onto laboratories for use in harmful experiments in an often long and stressful journey.
There are currently ten Class B dealers in the U.S. (although one has a suspended license and is not likely to resume activity) who round up thousands of dogs and cats each year and sell them to research facilities. They obtain these pets from flea markets, auctions, shelters, and other so-called "random sources," including from shady middle-men known as bunchers, who often resort to outright theft of pets and misrepresentation when responding to free-to-good-home ads.
Undercover investigations by animal protection organizations and inspections by the U.S. Department of Agriculture (which licenses Class B dealers) have revealed heartbreaking conditions at Class B dealer facilities, such as undernourished, sick dogs and cats living in filth amidst dead animals, receiving little if any veterinary care, and being abused by handlers.
You Can Help
Contact research facilities that purchase dogs and cats from Class B dealers and demand that they stop allowing this cruel practice to continue. Take action »
Watch The Video
"Dealing Dogs," a shocking HBO documentary, exposes the inhumanity that can take place on Class B dealer properties. Check out a scene from the film.
Questions and Answers About Pets Used in Experiments
Learn more about dogs and cats who become victims of Class B animal dealers and end up in research laboratories.
Learn MoreNews & Events
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February 18, 2010
Congress Considers Closing Down “Class B” Dealers
Sales of pet dogs and cats from “random sources” for biomedical research may end
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November 20, 2009
Research Proposal: Don't Buy Dogs, Cats from B Dealers
Wayne Pacelle asks animal lovers to take action for dogs and cats sold to research institutions by Class B dealers for use in harmful experiments
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November 18, 2009
Research Institutions Respond to HSUS Pressure
Institutions that reportedly obtain dogs and cats from Class B dealers are being asked to sever those ties
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November 17, 2009
Dogs, Cats Used in Experiments
The HSUS is urging 50 research institutions to stop buying dogs and cats from “Class B” dealers. The dealers are licensed by the USDA to round up dogs and cats from animal shelters, individuals and other “random sources” and then sell them for experimentation. The HSUS released a study identifying the institutions that still purchase from these dealers.
Our Victories
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March 5, 2010
HSVMA Applauds Michigan State for Ending Terminal Surgeries on Dogs
The Humane Society Veterinary Medical Association applauds Michigan State University College of Veterinary Medicine’s decision to eliminate “terminal surgeries” on dogs.
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February 26, 2010
Puppy Mill Operator Sentenced to 10 Years
The HSUS applauds Judge Timothy Easter for imposing an appropriate sentence following the conviction of the owner of Pine Bluff Kennels in Lyles, Tenn., on animal cruelty charges.
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February 8, 2010
Anniversary of Freedom
February 6, 2010 marked the one-year anniversary of freedom for 283 dogs rescued from dismal, filthy conditions at a puppy mill near Goldsboro, NC.
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February 4, 2010
The HSUS Applauds Botox Manufacturer Allergan for Steps to Replace Controversial Animal Test
The HSUS applauds the Allergan Corporation for announcing its progress toward replacing a controversial animal test used in manufacturing its flagship product Botox Cosmetic, the popular anti-wrinkle treatment.









