Changes made by Commission Delegated Regulation (EU) 2017/1182 of 20 April 2017 supplementing Regulation (EU) No 1308/2013 of the European Parliament and of the Council as regards the Union scales for the classification of beef, pig and sheep carcasses and as regards the reporting of market prices of certain categories of carcasses and live animals: Commission Regulation (EC) No 315/2002 of 20 February 2002 on the survey of prices of fresh or chilled sheep carcasses on representative markets in the Community