Any veterinarian, public or private animal shelter, or releasing agency that releases or receives companion animals for adoption or is authorized to euthanize companion animals shall seek to identify the lawful owner of each unidentified companion animal submitted to it, including, for any weaned companion animal that may be safely handled, making a reasonable attempt to scan the animal for an embedded microchip at the time of intake, at the time of assessment, and prior to disposition. If a chip is detected, the veterinarian, shelter, or agency shall make every reasonable effort to contact the owner by the most expedient method available. Such veterinarian, shelter, or agency shall maintain documentation for at least 30 days from the date of the final disposition of the animal that includes the reason an animal could not be scanned, any scanning that located or failed to locate a microchip, whether a located microchip was registered to an owner, and any attempt to contact any owner. Veterinarians shall notify the local public shelter, in compliance with § 3.2-6551, when taking possession of a stray animal. The requirements of this section shall not apply to the transfer of animals between veterinarians, public or private animal shelters, or releasing agencies.