Chapter 2a NATIONAL RULES, CROSS-ACCEPTANCE AND TECHNICAL OPINIONSF1 United Kingdom Repealed Original text. Later amendments are not shown. 9aNational rules 9bClassification of national rules 10Technical opinions 11Public database of documents Annotations Textual amendments F1 Repealed by Regulation (EU) 2016/796 of the European Parliament and of the Council of 11 May 2016 on the European Union Agency for Railways and repealing Regulation (EC) No 881/2004 (Text with EEA relevance). Chapter 2a