Conn. Gen. Stat. § 22-309: Refusal of permit.

The commissioner may refuse to grant permits to import animals from any and all sections or areas that the commissioner determines are infected with a contagious disease, and the commissioner may, at any time, revoke any permit previously issued and then outstanding, for the importation into this state of animals that in the commissioner's opinion are infected, and all damages caused or claimed to have been caused by such revocation shall be borne by the owner. All livestock entering the state shall be identified by official identification.