Setting the standard in responsible pet care For the third year in a row, American Humane — the world's largest certifier of animal welfare — verified that pets in Petco pet care centers enjoy excellent attention at every step of their journey to their new families. The American Humane Certified™ Seal of Approval was awarded following rigorous audits of Petco locations and vendor facilities, where the independent organization assessed the welfare and overall condition of all small mammals, birds, reptiles, ...