Utah Code Ann. § 11-46-103
(2) An animal shelter shall ensure that a record of each held animal is maintained that includes the:
(c) method of disposition, which may be:
(3) An unidentified or unclaimed stray animal may be euthanized before the completion of the five working day minimum holding period to prevent unnecessary suffering due to serious injury or disease if the euthanasia complies with:
(4) An unidentified or unclaimed stray animal shall be returned to the animal's owner upon: