In the event of a disease outbreak the precise location of all livestock is essential for effective measures to control and eradicate highly contagious viruses. To try and stop the spread of disease there are strict rules controlling the identification and movements of livestock. These rules apply to you even if you only keep one animal of the species covered.
The Defra web pages explain how you must register, identify and move livestock.
Please click on the following link http://www.defra.gov.uk/animalh/id-move/index.htm
Please note the identification rules for sheep and goats changed on the 11 January 2008
Information on the introduction of Double-Tagging for Sheep and Goats on 11 January 2008 has been published by Defra and can be found on the following link.
http://www.defra.gov.uk/animalh/id-move/sheep-goats/doubletag-qanda.htm