Va. Code Ann. § 54.1-3806

The Board may license a veterinary technician to perform acts relating to the treatment or the maintenance of the health of any animal under the immediate and direct supervision of a person licensed to practice veterinary medicine in the Commonwealth or a veterinarian who is employed by the United States or the Commonwealth while actually engaged in the performance of his official duties. No person licensed as a veterinary technician may perform surgery, diagnose, or prescribe medication for any animal.