Conn. Gen. Stat. § 20-205a: Disposition of abandoned animals.

Any veterinarian may dispose of any animal abandoned in his establishment, provided he shall give notice of his intention to do so to the owner at his last-known address by registered or certified mail, return receipt requested, and shall allow a period of fifteen days to elapse after the receipt is returned before disposing of such animal; but, if the owner cannot be located at such address, the veterinarian shall give such notice by publication in a newspaper having a circulation in the town in which such owner was last known to reside, and shall allow a period of fifteen days to elapse after such publication before disposing of such animal.