Google Translated from: http://www.shih-tzu-club.eu/Unser-Club/Zuchtordnung/
6. Dogs not allowed to breed

6.1 This includes dogs that do not meet the breed standard and in particular such with faults that exclude breeding, e.g. (weakness of character), congenital deafness or blindness, harelip, cleft jaw, significant tooth defects and jaw abnormalities, PRA, Epilepsy, cryptorchidism, monorchidism, albinism, identified severe hip joint Dysplasia, luxating patella, blue eyes, kinky tails, congenital bobtails and overbite.

6.2. Dogs with visible or subsequently recognizable hereditary faults are excluded from the exclude breeding. Any breeding approval or licensing that may be granted can be done by the Breeding book office / breeding management can be withdrawn.