This "Code of Ethics was taken from the "The Chihuahua Club of America, Inc". I believe this is what all good breeders should strive for, even if you are not a member.

The Chihuahua Club of America, Inc.
Code of Ethics

As a member of The Chihuahua Club of America, I pledge to uphold the goals of the club as set forth in the club's Constitution and By-Laws, to encourage good sportsmanship in the sport of dogs, and to set an example of honorable kennel business practices when dealing with any person.

Specifically, I further pledge:

To uphold the American Kennel Club roles applying to Dog Shows and Registration, particularly as regards to the maintenance of complete and accurate breeding records.

To accept and uphold the Standard of the Chihuahua as developed by The Chihuahua Club of America and approved by the American Kennel Club.

To breed only A.K.C. registered Chihuahuas with the aim of maintaining or improving the qualities of the breed as set forth in the Standard, and not for personal gain. I will never knowingly sell puppies to wholesalers, laboratories or to pet stores, and will encourage any puppy buyer to behave similarly.

To serve as an example of good sportsmanship in every aspect of the sport of dogs, and to assist and befriend newcomers and novices to the best of my ability.

To keep myself informed in the areas of dog health and genetics and to carefully screen all breeding stock for hereditary faults or disqualifying defects, removing any questionable animals from my breeding program.

To conduct all my kennel practices in a clear, honorable and open fashion, and to use written agreements or contracts whenever possible.