Conn. Agencies Regs. § 12-574-B30
(a) Claiming procedures are as follows:
(b) Blood sample required where horse is claimed. If claimant indicates on the claiming form that he desires a blood sample, a licensed veterinarian shall take a blood sample identified as being from the claimed horse. The sample shall be forwarded within twenty-four (24) hours to a laboratory approved by the commission to be tested for equine infectious anemia (coggins test).
(1) Coggins test. Pending the receipt of the result of a coggins test, the following procedure shall apply:
(i) The ownership of the claimed horse shall revert to the original owner.