Many state and local governments have passed laws regulating “puppy mills” (large commercial dog-breeding operations that some believe treat animals inhumanely).
The August edition of the American Bar Journal contains an article on these new laws cracking down on puppy mills. The article mentions a Chicago ordinance requiring pet shops to obtain puppies from animal shelters or humane non-profit organizations. It also discusses the federal Animal Welfare Act, which grants the federal government some authority to regulate the commercial sale of pets.
The article is available via this link: Puppy Mills