She shut down her equine massage practice in a Washington suburb after state officials told her state law only allows veterinarians to perform such services. Now she's suing two state agencies, saying regulators are unfairly barring registered massage therapists who want to practice on animals. Animal massage regulations vary from state to state, with some allowing only veterinarians to practice. Clemens' case is being closely watched by those in the animal massage industry, who say business has grown steadily along with interest in other alternative treatments and pampering for pets.