The idea that most Pet Store Breeders are substandard in the way they care for their dogs, keep their dogs and sell their puppies couldn't be further from the truth.
In fact, Pet Store Breeders have the heaviest regulation than any other breeder. The reason why is because of their volume and who they sell to. Most states have kennel laws regarding how many dogs you can have before you have to be licensed and inspected. Since most Pet Store Breeders fall into this category they must be licensed and inspected by their state.
It doesn't just end with state licenses and inspections, Pet Store Breeders must also be licensed and inspected by the United States Department of Agriculture. This is a separate government agency from their state agency that also will license and inspect their dogs and kennel on the federal level.
Also, let's not forget other governing bodies that also do inspections of Pet Store Breeders. Such as the American Kennel Club (AKC). Who if you register your dogs with, have the right to inspect the conditions of your kennel and dogs.
Regulation through licensing and inspections is great, this has changed the way people breed dogs dramatically over the past few years. However, what has made the most impact was how these regulations were able to weed out the bad apples. Only a short few years ago, there was several thousand-dog kennels licensed by the United States Department of Agriculture. While today there is less than 1,700.