“ancillary services”

1. The Air Navigation (Overseas Territories) Order 2013 SI
2. Defence Reform Act 2014 Act 2 definitions
3. Deregulation and Contracting Out Act 1994 Act
4. The Financial Services Act 1986 (Electricity Industry Exemption) Order 2001 SI
5. Financial Services and Markets Act 2000 Act
6. The Financial Services and Markets Act 2000 (Exemption) Order 2001 SI
7. The Financial Services and Markets Act 2000 (Markets in Financial Instruments) Regulations 2017 SI
8. Greater London Authority Act 1999 Act
9. Regulation (EC) No 715/2009 of the European Parliament and of the Council of 13 July 2009 on conditions for access to the natural gas transmission networks and repealing Regulation (EC) No 1775/2005 (Text with EEA relevance) EU regulation
10. Regulation (EU) No 600/2014 of the European Parliament and of the Council of 15 May 2014 on markets in financial instruments and amending Regulation (EU) No 648/2012 (Text with EEA relevance) EU regulation

Definitions are taken from the instruments as published on zoomLaw, for guidance only. Check the instrument itself for its scope and any amendments.