Paragraph 5 Tail docking
In all cases, enough of the tail must be retained to cover the vulva of a female animal or the anus of a male animal.
When the method used is the application of a rubber ring or other device to constrict the flow of blood to the tail, the procedure may only be carried out on an animal aged not more than 7 days.
When any other method is used an anaesthetic must be administered.