13.—(1) Unless a medical fitness certificate has been surrendered under regulation 10(3), if a person who was issued with a medical fitness certificate which is still valid is no longer in possession of that certificate, then upon—
(a)application in writing being made by that person or that person’s employer to the medical practitioner or medical referee who issued the certificate; and
(b)payment of the medical practitioner’s or medical referee’s administrative costs of issuing the replacement,
the medical practitioner or medical referee who issued that certificate may issue to that person a replacement medical fitness certificate.
(2) A replacement medical fitness certificate issued under this regulation expires on the expiration date of the original medical fitness certificate which it replaces.