Division 1.1 ContextF1 United Kingdom Repealed Original text. Later amendments are not shown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1.1What a BREF is and its aim 1.1.2‘Horizontal’ and ‘vertical’ BREFs Annotations Textual amendments F1 Decision revoked (31.12.2020) by The Air Quality (Miscellaneous Amendment and Revocation of Retained Direct EU Legislation) (EU Exit) Regulations 2018 (S.I. 2018/1407), reg. 1, Sch. 1 para. 7; 2020 c. 1, Sch. 5 para. 1(1) ← Division CHAPTER 1 Division 1.1 Division 1.1.1 →