Colorado voters are being asked to expand the class of veterinary professionals who can practice under state law to help provide relief to overworked animal doctors, amid a shortage of veterinarians. Proposition 129 would add veterinary professional associate as a new mid-level position in Colorado’s field of veterinary care. That licensure is currently limited to veterinarians, registered veterinary technicians and registered veterinary technician specialists. The unemployment rate for veterinarians in 2023 was 0.5%, according to the U.S.