Changes to 94/274/EC: Commission Decision of 18 April 1994 laying down the system of identification for dogs and cats that are placed on the market in the United Kingdom and Ireland and not originating in those countries
EU Decision 1994/274
The legislation that changes 94/274/EC: Commission Decision of 18 April 1994 laying down the system of identification for dogs and cats that are placed on the market in the United Kingdom and Ireland and not originating in those countries, newest first. Choose one to see each change.
From legislation.gov.uk's record of changes, the official one: see it there.