Changes to Commission Decision of 15 April 2010 approving national measures for limiting the impact of certain diseases in aquaculture animals and wild aquatic animals in accordance with Article 43 of Council Directive 2006/88/EC (notified under document C(2010) 1850) (2010/221/EU)
EU Decision 2010/221
Made by Commission Implementing Decision of 13 December 2012 amending Decision 2010/221/EU as regards national measures for preventing the introduction of certain aquatic animal diseases into parts of Ireland, Finland and the United Kingdom (notified under document C(2012) 9295) (2012/786/EU)
From legislation.gov.uk's record of changes, the official one: see it there.