(a) The aforesaid Equine Interstate Passport or the equivalent shall be valid for the purposes of this Part, for 6 months following the date of examination appearing on the permit or 12 months after the date of the negative equine infectious anemia test, whichever is earlier.

(b) The aforesaid certificate of veterinary inspection shall be valid for the purposes of this Part, until and including the 30th day following the date of examination appearing on the certificate.