Defined term

“relevant authority”

Defined in 153 Acts, 194 statutory instruments and 30 EU-derived instruments.

  1. The Adoption Agencies Regulations 2005 SI
  2. The Adoption Support Agencies (England) and Adoption Agencies (Miscellaneous Amendments) Regulations 2005 SI
  3. The Adoptions with a Foreign Element (Special Restrictions on Adoptions from Abroad) Regulations 2008 SI
  4. Agriculture Act 1993 Act
  5. Animal Health Act 1981 Act
  6. Anti-social Behaviour Act 2003 Act 3 definitions
  7. Anti-social Behaviour, Crime and Policing Act 2014 Act
  8. Apprenticeships, Skills, Children and Learning Act 2009 Act 2 definitions
  9. The Armed Forces (Service Inquiries) Regulations 2008 SI
  10. The Associated British Ports (Immingham Green Energy Terminal) Order 2025 SI
  11. The Authorised Investigators (Complaints and Misconduct) Regulations 2026 SI
  12. The Banking Act 2009 (Restriction of Partial Property Transfers) Order 2009 SI
  13. Birmingham Commonwealth Games Act 2020 Act
  14. The British Nationality (General) Regulations 2003 SI
  15. Broadcasting Act 1990 Act 3 definitions
  16. The Buckinghamshire (Structural Changes) Order 2019 SI
  17. Building Act 1984 Act 9 definitions
  18. The Building (Amendment) (England) Regulations 2024 SI
  19. The Building Regulations 2010 SI
  20. The Building Regulations etc. (Amendment) (England) Regulations 2025 SI
  21. The Building Regulations etc. (Amendment) (England) Regulations 2026 SI
  22. Building Safety Act 2022 Act 4 definitions
  23. The Building Safety (Responsible Actors Scheme and Prohibitions) Regulations 2023 SI 4 definitions
  24. Bus Services Act 2025 Act
  25. The Byelaws (Alternative Procedure) (England) Regulations 2016 SI
  26. Capital Allowances Act 2001 Act 3 definitions
  27. Care Standards Act 2000 Act
  28. The Care Standards Act 2000 (Commencement No. 9 (England) and Transitional and Savings Provisions) Order 2001 SI
  29. The Child Benefit and Guardian’s Allowance (Administration) Regulations 2003 SI
  30. The Child Benefit and Guardian’s Allowance (Administrative Arrangements) Regulations 2003 SI
  31. Child Support, Pensions and Social Security Act 2000 Act 4 definitions
  32. The Childcare (Free of Charge for Working Parents) (England) Regulations 2022 SI
  33. Children Act 1989 Act
  34. Children and Young Persons Act 1969 Act
  35. Children’s Wellbeing and Schools Act 2026 Act 3 definitions
  36. Civil Aviation Act 1982 Act 4 definitions
  37. The Civil Aviation (Insurance) Regulations 2005 SI
  38. The Civil Partnership (Pensions, Social Security and Child Support) (Consequential, etc. Provisions) Order 2005 SI
  39. The Civil Procedure (Amendment) Rules 2004 SI
  40. The Civil Procedure Rules 1998 SI 3 definitions
  41. The Clergy Conduct Rules 2026 SI
  42. The Climate Change Levy (General) Regulations 2001 SI 2 definitions
  43. Co-operative and Community Benefit Societies Act 2014 Act
  44. Commission Delegated Regulation (EU) 2015/1829 of 23 April 2015 supplementing Regulation (EU) No 1144/2014 of the European Parliament and of the Council on information provision and promotion measures concerning agricultural products implemented in the internal market and in third countries EU regulation
  45. Commission Delegated Regulation (EU) 2017/40 of 3 November 2016 supplementing Regulation (EU) No 1308/2013 of the European Parliament and of the Council with regard to Union aid for the supply of fruit and vegetables, bananas and milk in educational establishments and amending Commission Delegated Regulation (EU) No 907/2014 EU regulation
  46. Commission Delegated Regulation (EU) 2017/891 of 13 March 2017 supplementing Regulation (EU) No 1308/2013 of the European Parliament and of the Council with regard to the fruit and vegetables and processed fruit and vegetables sectors and supplementing Regulation (EU) No 1306/2013 of the European Parliament and of the Council with regard to penalties to be applied in those sectors and amending Commission Implementing Regulation (EU) No 543/2011 EU regulation
  47. Commission Implementing Regulation (EU) 2015/1831 of 7 October 2015 laying down rules for application of Regulation (EU) No 1144/2014 of the European Parliament and of the Council on information provision and promotion measures concerning agricultural products implemented in the internal market and in the third countries EU regulation
  48. Commission Implementing Regulation (EU) 2017/1184 of 20 April 2017 laying down rules for the application of 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 EU regulation
  49. Commission Implementing Regulation (EU) 2017/892 of 13 March 2017 laying down rules for the application of Regulation (EU) No 1308/2013 of the European Parliament and of the Council with regard to the fruit and vegetables and processed fruit and vegetables sectors EU regulation
  50. Commission Regulation (EC) No 1235/2008 of 8 December 2008 laying down detailed rules for implementation of Council Regulation (EC) No 834/2007 as regards the arrangements for imports of organic products from third countries EU regulation
  51. Commission Regulation (EC) No 543/2008 of 16 June 2008 laying down detailed rules for the application of Council Regulation (EC) No 1234/2007 as regards the marketing standards for poultrymeat EU regulation
  52. Commission Regulation (EC) No 566/2008 of 18 June 2008 laying down detailed rules for the application of Council Regulation (EC) No 1234/2007 as regards the marketing of the meat of bovine animals aged 12 months or less EU regulation
  53. Commission Regulation (EC) No 589/2008 of 23 June 2008 laying down detailed rules for implementing Council Regulation (EC) No 1234/2007 as regards marketing standards for eggs EU regulation
  54. Commission Regulation (EC) No 617/2008 of 27 June 2008 laying down detailed rules for implementing Regulation (EC) No 1234/2007 as regards marketing standards for eggs for hatching and farmyard poultry chicks EU regulation
  55. Commission Regulation (EC) No 889/2008 of 5 September 2008 laying down detailed rules for the implementation of Council Regulation (EC) No 834/2007 on organic production and labelling of organic products with regard to organic production, labelling and control EU regulation
  56. The Community Infrastructure Levy Regulations 2010 SI
  57. The Conservation of Offshore Marine Habitats and Species Regulations 2017 SI
  58. Consumer Credit Act 1974 Act 2 definitions
  59. The Control of Mercury (Enforcement) Regulations 2017 SI
  60. Control of Pollution Act 1974 Act
  61. The Coroners Allowances, Fees and Expenses Regulations 2013 SI
  62. Coroners and Justice Act 2009 Act 3 definitions
  63. Corporate Insolvency and Governance Act 2020 Act 2 definitions
  64. The Cory Decarbonisation Project Order 2025 SI
  65. Council Regulation (EC) No 834/2007 of 28 June 2007 on organic production and labelling of organic products and repealing Regulation (EEC) No 2092/91 EU regulation
  66. Council Regulation (EU) No 1370/2013 of 16 December 2013 determining measures on fixing certain aids and refunds related to the common organisation of the markets in agricultural products EU regulation
  67. The Council Tax Benefit (Persons who have attained the qualifying age for state pension credit) Regulations 2006 SI 2 definitions
  68. The Council Tax Benefit Regulations 2006 SI 2 definitions
  69. The Council Tax (Discount Disregards) Order 1992 SI
  70. The Counter Fraud and Security Management Service (Establishment and Constitution) Order 2002 SI
  71. Countryside and Rights of Way Act 2000 Act 4 definitions
  72. Crime and Courts Act 2013 Act 3 definitions
  73. Crime and Disorder Act 1998 Act 3 definitions
  74. Crime and Policing Act 2026 Act
  75. The Criminal Defence Service (Information Requests) (Prescribed Benefits) Regulations 2009 SI
  76. The Criminal Defence Service (Information Requests) Regulations 2009 SI
  77. The Criminal Procedure Rules 2025 SI
  78. The Cumbria (Structural Changes) Order 2022 SI
  79. The Dairy (Specific Market Support Measure) Regulations 2010 SI
  80. Data Protection Act 2018 Act 3 definitions
  81. The Deposit Scheme for Drinks Containers (England and Northern Ireland) Regulations 2025 SI 2 definitions
  82. The Disabled People’s Right to Control (Pilot Scheme) (England) Regulations 2010 SI
  83. Down Syndrome Act 2022 Act
  84. Education Act 1996 Act
  85. Education and Inspections Act 2006 Act 2 definitions
  86. The Education Maintenance Allowance (Pilot Areas) Regulations 2000 SI
  87. The Education Maintenance Allowance (Pilot Areas) Regulations 2001 SI
  88. The Education (School Information) (England) Regulations 2002 SI
  89. The Education (Student Support) (College of Europe) Regulations 2010 SI
  90. The Education (Student Support) (European Institutions) (No. 2) Regulations 2006 SI
  91. The Education (Student Support) (European Institutions) Regulations 2006 SI
  92. Electricity Act 1989 Act 3 definitions
  93. The Electricity and Gas (Energy Company Obligation) Order 2022 SI
  94. The Electricity and Gas (Energy Company Obligation) Order 2023 SI
  95. The Electricity and Gas (Market Integrity and Transparency) (Amendment) (EU Exit) Regulations 2019 SI
  96. The Electricity Capacity (No. 1) Regulations 2019 SI
  97. The Electricity (Connection Standards of Performance) Regulations 2015 SI
  98. The Electricity Works (Environmental Impact Assessment) (England and Wales) Regulations 2017 SI
  99. The Employment Tribunals (Constitution and Rules of Procedure) Regulations 2001 SI
  100. Energy Act 2013 Act 2 definitions
  101. Energy Act 2023 Act 6 definitions
  102. English Devolution and Community Empowerment Act 2026 Act 2 definitions
  103. Enterprise Act 2002 Act 14 definitions
  104. The Enterprise Act 2002 (Mergers and Market Investigations) (Determination of Control and Turnover for Penalties) Regulations 2024 SI
  105. Environment Act 1995 Act
  106. Environment Act 2021 Act
  107. The Environmental Impact Assessment (Land Drainage Improvement Works) Regulations 1999 SI
  108. Environmental Protection Act 1990 Act 2 definitions
  109. Equality Act 2010 Act 2 definitions
  110. European Union (Future Relationship) Act 2020 Act
  111. The European Union (Regulated Professions Proportionality Assessment) Regulations 2020 SI
  112. European Union (Withdrawal Agreement) Act 2020 Act
  113. The Explosives Regulations 2014 SI
  114. The Family Procedure Rules 2010 SI
  115. Financial Services and Markets Act 2000 Act 3 definitions
  116. The Financial Services and Markets Act 2000 (Service of Notices) Regulations 2001 SI
  117. Fire and Rescue Services Act 2004 Act 2 definitions
  118. Fire Safety Act 2021 Act
  119. Fisheries Act 2020 Act
  120. Flood and Water Management Act 2010 Act 2 definitions
  121. The Fluorinated Greenhouse Gases Regulations 2008 SI
  122. The Food Crime Officers (Complaints and Misconduct) Regulations 2025 SI
  123. Forgery and Counterfeiting Act 1981 Act
  124. Freedom of Information Act 2000 Act
  125. Friendly Societies Act 1992 Act 2 definitions
  126. The Friendly Societies Act 1992 (Industrial Assurance) (Channel Islands) Order 2001 SI
  127. Further and Higher Education Act 1992 Act
  128. The Gangmasters and Labour Abuse Authority (Complaints and Misconduct) Regulations 2017 SI
  129. Gas Act 1986 Act 3 definitions
  130. The General Medical Council (Applications for General Practice and Specialist Registration) Regulations Order of Council 2010 SI
  131. The GLA Roads and Side Roads (Transfer of Property etc.) Order 2000 SI
  132. The Goods Vehicles (Community Licences) Regulations 2011 SI
  133. Government of Wales Act 2006 Act 2 definitions
  134. Harbours Act 1964 Act 2 definitions
  135. Health Act 2006 Act
  136. Health and Social Care Act 2001 Act
  137. Health and Social Care Act 2012 Act
  138. The Health and Social Care Information Centre (Establishment and Constitution) Order 2005 SI
  139. The Health Care Services (Provider Selection Regime) Regulations 2023 SI 2 definitions
  140. The Health Protection Agency (Yr Asiantaeth Diogelu Iechyd) (Establishment) Order 2003 SI
  141. The High Hedges (Appeals) (England) Regulations 2005 SI
  142. High Speed Rail (London - West Midlands) Act 2017 Act 2 definitions
  143. High Speed Rail (West Midlands - Crewe) Act 2021 Act
  144. Higher Education Act 2004 Act
  145. Higher Education and Research Act 2017 Act
  146. Housing Act 1985 Act 11 definitions
  147. Housing Act 1988 Act
  148. Housing Act 1996 Act
  149. The Housing Benefit and Council Tax Benefit (Abolition of Benefit Periods) Amendment Regulations 2004 SI
  150. The Housing Benefit and Council Tax Benefit (Consequential Provisions) Regulations 2006 SI
  151. The Housing Benefit and Council Tax Benefit (Decisions and Appeals) Regulations 2001 SI
  152. The Housing Benefit and Council Tax Benefit (Decisions and Appeals) (Transitional and Savings) Regulations 2001 SI
  153. The Housing Benefit (General) (Local Housing Allowance) Amendment Regulations 2005 SI
  154. The Housing Benefit (Local Housing Allowance and Information Sharing) Amendment Regulations 2007 SI
  155. The Housing Benefit (Local Housing Allowance, Miscellaneous and Consequential) Amendment Regulations 2007 SI
  156. The Housing Benefit (Loss of Benefit) (Pilot Scheme) Regulations 2007 SI
  157. The Housing Benefit (Loss of Benefit) (Pilot Scheme) (Supplementary) Regulations 2007 SI
  158. The Housing Benefit (Persons who have attained the qualifying age for state pension credit) Regulations 2006 SI 2 definitions
  159. The Housing Benefit Regulations 2006 SI 2 definitions
  160. The Housing Benefit (State Pension Credit) (Local Housing Allowance and Information Sharing) Amendment Regulations 2007 SI
  161. Housing (Homeless Persons) Act 1977 Act
  162. Housing (Scotland) Act 1987 Act
  163. Immigration and Asylum Act 1999 Act
  164. The Immigration (Citizens' Rights Appeals) (EU Exit) Regulations 2020 SI
  165. Income Tax (Earnings and Pensions) Act 2003 Act
  166. Income Tax (Trading and Other Income) Act 2005 Act 2 definitions
  167. The Independent Police Complaints Commission (Complaints and Misconduct) (Contractors) Regulations 2015 SI
  168. The Infrastructure Planning (Environmental Impact Assessment) Regulations 2017 SI
  169. The Jobseeker’s Allowance Regulations 1996 SI
  170. Jobseekers Act 1995 Act
  171. The Joint Waste Disposal Authorities (Levies) (England) Regulations 2006 SI
  172. Judicature (Northern Ireland) Act 1978 Act 2 definitions
  173. The Lake Lothing (Lowestoft) Third Crossing Order 2020 SI
  174. Land Compensation Act 1961 Act
  175. Land Compensation (Scotland) Act 1973 Act
  176. Land Drainage Act 1991 Act
  177. Leasehold Reform (Ground Rent) Act 2022 Act
  178. The Lebanon and Syria (United Nations Measures) (Channel Islands) Order 2006 SI 2 definitions
  179. Legal Aid, Sentencing and Punishment of Offenders Act 2012 Act 4 definitions
  180. The Leicestershire County Council (Ashby de la Zouch Canal Extension) Order 2005 SI
  181. The Local Access Forums (England) Regulations 2007 SI
  182. Local Audit and Accountability Act 2014 Act 3 definitions
  183. The Local Authorities (Arrangements for the Discharge of Functions) (England) Regulations 2012 SI
  184. The Local Authorities (Charges for Specified Welfare Services) (England) Regulations 2003 SI
  185. The Local Authorities (Companies) (Amendment) (England) Order 2002 SI
  186. The Local Authorities (Standing Orders) (England) (Amendment) Regulations 2014 SI
  187. The Local Authorities (Standing Orders) (England) Regulations 2001 SI
  188. Local Democracy, Economic Development and Construction Act 2009 Act
  189. Local Government Act 1972 Act
  190. Local Government Act 1985 Act
  191. Local Government Act 1999 Act
  192. Local Government Act 2000 Act 10 definitions
  193. Local Government Act 2003 Act 9 definitions
  194. Local Government and Housing Act 1989 Act 11 definitions
  195. Local Government and Public Involvement in Health Act 2007 Act 4 definitions
  196. The Local Government (Exclusion of Non-commercial Considerations) (England) Order 2026 SI
  197. Local Government Finance Act 1988 Act 4 definitions
  198. Local Government Finance Act 1992 Act 3 definitions
  199. The Local Government (Prohibition of Charges at Household Waste Recycling Centres) (England) Order 2015 SI 2 definitions
  200. Local Government (Scotland) Act 1975 Act
  201. The Local Government (Structural Changes) (Finance) Regulations 2008 SI
  202. The Local Government (Transparency) (Descriptions of Information) (England) Order 2015 SI
  203. Local Transport Act 2008 Act 2 definitions
  204. Localism Act 2011 Act 4 definitions
  205. The Localism Act 2011 (Commencement No. 2 and Transitional and Saving Provision) Order 2012 SI
  206. The Localism Act 2011 (Commencement No. 6 and Transitional, Savings and Transitory Provisions) Order 2012 SI 2 definitions
  207. The Localism Act 2011 (Commencement No. 8 and Transitional, Transitory and Savings Provisions) Order 2012 SI
  208. The London Olympic Games and Paralympic Games (Advertising and Trading) (England) Regulations 2011 SI
  209. The London Underground (East London Line Extension) (No. 2) Order 2001 SI
  210. Marine and Coastal Access Act 2009 Act 5 definitions
  211. The Marine Works (Environmental Impact Assessment) Regulations 2007 SI
  212. The Medicines (Advisory Bodies) (No. 2) Regulations 2005 SI
  213. Medicines and Medical Devices Act 2021 Act 4 definitions
  214. The Medicines for Human Use (Clinical Trials) Regulations 2004 SI
  215. The Medworth Energy from Waste Combined Heat and Power Facility Order 2024 SI
  216. Merchant Shipping Act 1995 Act 2 definitions
  217. The Merchant Shipping (Vessel Traffic Monitoring and Reporting Requirements) Regulations 2004 SI
  218. Ministry of Defence Police Act 1987 Act 2 definitions
  219. The Ministry of Defence Police (Conduct etc. ) Regulations 2015 SI
  220. The Ministry of Defence Police (Conduct, Performance and Appeals Tribunals) (Amendment) Regulations 2026 SI
  221. The Ministry of Defence Police (Conduct, Performance and Appeals Tribunals) Regulations 2020 SI 2 definitions
  222. The Money Laundering, Terrorist Financing and Transfer of Funds (Information on the Payer) Regulations 2017 SI
  223. National Audit Act 1983 Act
  224. The National Clinical Assessment Authority (Establishment and Constitution) Order 2000 SI
  225. The National Grid (Bramford to Twinstead Reinforcement) Order 2024 SI
  226. The National Grid (Hinkley Point C Connection Project) Order 2016 SI
  227. The National Grid (North London Reinforcement Project) Order 2014 SI 2 definitions
  228. National Health Service Act 2006 Act
  229. The National Health Service Appointments Commission (Establishment and Constitution) Order 2001 SI
  230. National Health Service (Wales) Act 2006 Act
  231. The National Park Authorities (England) Order 2015 SI
  232. National Parks and Access to the Countryside Act 1949 Act
  233. The National Patient Safety Agency (Establishment and Constitution) Order 2001 SI
  234. The National Treatment Agency (Establishment and Constitution) Order 2001 SI
  235. The Natural Mineral Water, Spring Water and Bottled Drinking Water (England) Regulations 2007 SI
  236. The Nature Restoration Levy Regulations 2026 SI
  237. The NHS Blood and Transplant (Gwaed a Thrawsblaniadau'r GIG) (Establishment and Constitution) Order 2005 SI
  238. The NHS Business Services Authority (Awdurdod Gwasanaethau Busnes y GIG) (Establishment and Constitution) Order 2005 SI
  239. The NHS Direct (Establishment and Constitution) Order 2004 SI
  240. The NHS Institute for Innovation and Improvement (Establishment and Constitution) Order 2005 SI
  241. The NHS Pensions Agency (Asiantaeth Pensiynau'r GIG) (Establishment and Constitution) Order 2004 SI
  242. The NHS Professionals Special Health Authority (Establishment and Constitution) Order 2003 SI
  243. The NHSU (Establishment and Constitution) Order 2003 SI
  244. The Non-Domestic Rating (Alteration of Lists and Appeals) (England) Regulations 2005 SI
  245. The Non-Domestic Rating (Alteration of Lists and Appeals) (England) Regulations 2009 SI
  246. The Non-Domestic Rating (Alteration of Lists and Appeals) Regulations 1993 SI
  247. Norfolk and Suffolk Broads Act 1988 Act
  248. The North Wales Wind Farms Connection Order 2016 SI
  249. The North Yorkshire (Structural Changes) Order 2022 SI
  250. The Northamptonshire (Structural Changes) Order 2020 SI
  251. The Northumberland Line Order 2022 SI
  252. The Nuclear Security (Secretary of State Security Directions) Regulations 2018 SI
  253. The Organic Products Regulations 2009 SI
  254. The Oversight of Professional Body Anti-Money Laundering and Counter Terrorist Financing Supervision Regulations 2017 SI
  255. Pension Schemes Act 2026 Act
  256. Pensions Act 2004 Act
  257. Pensions Act 2008 Act 2 definitions
  258. Planning Act 2008 Act
  259. Planning and Compulsory Purchase Act 2004 Act 2 definitions
  260. Planning and Infrastructure Act 2025 Act 2 definitions
  261. Police Act 1996 Act 8 definitions
  262. Police and Magistrates’ Courts Act 1994 Act
  263. Police, Crime, Sentencing and Courts Act 2022 Act 3 definitions
  264. Police (Health and Safety) Act 1997 Act
  265. Police Reform Act 2002 Act 2 definitions
  266. The Portishead Branch Line (MetroWest Phase 1) Order 2022 SI
  267. Proceeds of Crime Act 2002 Act 5 definitions
  268. Procurement Act 2023 Act
  269. The Procurement Act 2023 (Consequential and Other Amendments) Regulations 2025 SI
  270. The Producer Responsibility Obligations (Packaging and Packaging Waste) Regulations 2024 SI
  271. Product Regulation and Metrology Act 2025 Act
  272. Protection of Freedoms Act 2012 Act 2 definitions
  273. The Protection of Freedoms Act 2012 (Code of Practice for Surveillance Camera Systems and Specification of Relevant Authorities) Order 2013 SI
  274. Public Passenger Vehicles Act 1981 Act
  275. Public Service Pensions and Judicial Offices Act 2022 Act 2 definitions
  276. The Public Service Vehicles (Registration of Local Services) Regulations 1986 SI
  277. Public Services (Social Value) Act 2012 Act
  278. Public Works Loans Act 1965 Act
  279. Railways Act 1993 Act 2 definitions
  280. The Registration of Births and Deaths Regulations 1987 SI
  281. The Registration of Births, Deaths, Marriages and Civil Partnerships (Fees) (Amendment) and Multilingual Standard Forms Regulations 2018 SI
  282. Regulation (EC) No 1013/2006 of the European Parliament and of the Council of 14 June 2006 on shipments of waste EU regulation 4 definitions
  283. Regulation (EC) No 2003/2003 of the European Parliament and of the Council of 13 October 2003 relating to fertilisers (Text with EEA relevance) EU regulation
  284. Regulation (EU) 2016/2031 of the European Parliament of the Council of 26 October 2016 on protective measures against pests of plants, amending Regulations (EU) No 228/2013, (EU) No 652/2014 and (EU) No 1143/2014 of the European Parliament and of the Council and repealing Council Directives 69/464/EEC, 74/647/EEC, 93/85/EEC, 98/57/EC, 2000/29/EC, 2006/91/EC and 2007/33/EC EU regulation
  285. Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data (United Kingdom General Data Protection Regulation) (Text with EEA relevance) EU regulation
  286. Regulation (EU) 2017/852 of the European Parliament and of the Council of 17 May 2017 on mercury, and repealing Regulation (EC) No 1102/2008 (Text with EEA relevance) EU regulation
  287. Regulation (EU) 2019/1021 of the European Parliament and of the Council of 20 June 2019 on persistent organic pollutants (recast) (Text with EEA relevance) EU regulation
  288. Regulation (EU) 2019/943 of the European Parliament and of the Council of 5 June 2019 on the internal market for electricity (recast) (Text with EEA relevance) EU regulation
  289. Regulation (EU) No 1143/2014 of the European Parliament and of the Council of 22 October 2014 on the prevention and management of the introduction and spread of invasive alien species EU regulation
  290. Regulation (EU) No 1144/2014 of the European Parliament and of the Council of 22 October 2014 on information provision and promotion measures concerning agricultural products implemented in the internal market and in third countries and repealing Council Regulation (EC) No 3/2008 EU regulation
  291. Regulation (EU) No 1303/2013 of the European Parliament and of the Council of 17 December 2013 laying down common provisions on the European Regional Development Fund, the European Social Fund, the Cohesion Fund, the European Agricultural Fund for Rural Development and the European Maritime and Fisheries Fund and laying down general provisions on the European Regional Development Fund, the European Social Fund, the Cohesion Fund and the European Maritime and Fisheries Fund and repealing Council EU regulation 2 definitions
  292. Regulation (EU) No 1306/2013 of the European Parliament and of the Council of 17 December 2013 on the financing, management and monitoring of the common agricultural policy and repealing Council Regulations (EEC) No 352/78, (EC) No 165/94, (EC) No 2799/98, (EC) No 814/2000, (EC) No 1290/2005 and (EC) No 485/2008 EU regulation 4 definitions
  293. Regulation (EU) No 1307/2013 of the European Parliament and of the Council of 17 December 2013 establishing rules for direct payments to farmers under support schemes within the framework of the common agricultural policy and repealing Council Regulation (EC) No 637/2008 and Council Regulation (EC) No 73/2009 EU regulation 3 definitions
  294. Regulation (EU) No 1308/2013 of the European Parliament and of the Council of 17 December 2013 establishing a common organisation of the markets in agricultural products and repealing Council Regulations (EEC) No 922/72, (EEC) No 234/79, (EC) No 1037/2001 and (EC) No 1234/2007 EU regulation
  295. Regulation (EU) No 181/2011 of the European Parliament and of the Council of 16 February 2011 concerning the rights of passengers in bus and coach transport and amending Regulation (EC) No 2006/2004 (Text with EEA relevance) EU regulation
  296. Regulation (EU) No 598/2014 of the European Parliament and of the Council of 16 April 2014 on the establishment of rules and procedures with regard to the introduction of noise-related operating restrictions at United Kingdom airports within a Balanced Approach and repealing Directive 2002/30/EC EU regulation
  297. Regulation (EU) No 909/2014 of the European Parliament and of the Council of 23 July 2014 on improving securities settlement in the European Union and on central securities depositories and amending Directives 98/26/EC and 2014/65/EU and Regulation (EU) No 236/2012 (Text with EEA relevance) EU regulation
  298. Regulation of Investigatory Powers Act 2000 Act
  299. Regulatory Enforcement and Sanctions Act 2008 Act
  300. The Regulatory Reform (Fire Safety) Order 2005 SI 2 definitions
  301. The Relevant Authorities (Disclosable Pecuniary Interests) Regulations 2012 SI
  302. The Requirement to Assist with Certain Plan Making (Prescribed Public Bodies) (England) Regulations 2026 SI
  303. The Restriction of Public Sector Exit Payments (Revocation) Regulations 2021 SI
  304. The Retained Organs Commission (Establishment and Constitution) Order 2001 SI
  305. The Riverside Energy Park Order 2020 SI
  306. Road Traffic Act 1988 Act 2 definitions
  307. Road Traffic Act 1991 Act 2 definitions
  308. Road Traffic Regulation Act 1984 Act 4 definitions
  309. The Road Vehicles (Construction and Use) Regulations 1986 SI
  310. The Royal Parks and Other Open Spaces Regulations 1997 SI
  311. Safeguarding Vulnerable Groups Act 2006 Act
  312. The Safety Representatives and Safety Committees Regulations 1977 SI
  313. The School Organisation (Transitional Provisions) (England) Regulations 2007 SI
  314. School Standards and Framework Act 1998 Act 2 definitions
  315. Science and Technology Act 1965 Act
  316. Scotland Act 1998 Act
  317. Self-build and Custom Housebuilding Act 2015 Act
  318. The Service Police (Complaints etc.) Regulations 2023 SI 2 definitions
  319. The Silvertown Tunnel Order 2018 SI
  320. Skills and Post-16 Education Act 2022 Act
  321. Social Security Administration Act 1992 Act
  322. Social Security Administration (Northern Ireland) Act 1992 Act 2 definitions
  323. The Social Security (Claims and Information) (Housing Benefit and Council Tax Benefit) Regulations 2002 SI
  324. The Social Security (Claims and Information) Regulations 1999 SI
  325. The Social Security (Claims and Payments) Regulations 1987 SI 2 definitions
  326. Social Security Contributions (Transfer of Functions, etc. ) Act 1999 Act
  327. The Social Security Investigation Powers (Arrangements with Northern Ireland) Regulations 2007 SI
  328. The Social Security (Loss of Benefit) Regulations 2001 SI
  329. The Social Security (Notification of Change of Circumstances) Regulations 2001 SI 3 definitions
  330. The Somerset (Structural Changes) Order 2022 SI
  331. The South Downs National Park Authority (Establishment) Order 2010 SI
  332. Special Immigration Appeals Commission Act 1997 Act
  333. The Stamp Duty and Stamp Duty Reserve Tax (Definition of Unit Trust Scheme and Open-ended Investment Company) Regulations 2001 SI
  334. The Stamp Duty Land Tax (Administration) Regulations 2003 SI
  335. The Steeple Renewables Project Order 2026 SI
  336. The Sub-national Transport Body (Transport for the North) Regulations 2018 SI
  337. Supported Housing (Regulatory Oversight) Act 2023 Act
  338. The Surrey (Structural Changes) Order 2026 SI
  339. Tax Credits Act 2002 Act
  340. The Tax Credits (Administrative Arrangements) Regulations 2002 SI
  341. The Tax Credits (Claims and Notifications) Regulations 2002 SI
  342. Taxis and Private Hire Vehicles (Safeguarding and Road Safety) Act 2022 Act
  343. Telecommunications Act 1984 Act 2 definitions
  344. Tenant Fees Act 2019 Act
  345. Theatres Act 1968 Act
  346. Town and Country Planning Act 1990 Act 6 definitions
  347. The Town and Country Planning (Crown Development Applications) (Procedure and Written Representations) Order 2025 SI
  348. The Town and Country Planning (Fees for Applications, Deemed Applications, Requests and Site Visits) (England) Regulations 2012 SI 3 definitions
  349. The Town and Country Planning (Local Planning) (England) Regulations 2012 SI 2 definitions
  350. The Town and Country Planning (Local Planning) (England) Regulations 2026 SI
  351. The Town and Country Planning (Section 62A Applications) (Procedure and Consequential Amendments) Order 2013 SI
  352. The Town and Country Planning (Tree Preservation)(England) Regulations 2012 SI
  353. The Trade in Animals and Related Products Regulations 2011 SI
  354. The Traffic Management Permit Scheme (England) Regulations 2007 SI
  355. The Trailer Registration Regulations 2018 SI
  356. The Transfer of Housing Corporation Functions (Modifications and Transitional Provisions) Order 2008 SI 2 definitions
  357. Transport Act 1968 Act
  358. Transport Act 1985 Act
  359. Transport Act 2000 Act 2 definitions
  360. Transport and Works Act 1992 Act
  361. The Transport for London (Consequential Provisions) Order 2005 SI
  362. Tribunals, Courts and Enforcement Act 2007 Act 2 definitions
  363. The Valuation Tribunal for England (Council Tax and Rating Appeals) (Procedure) Regulations 2009 SI
  364. Value Added Tax Act 1994 Act 2 definitions
  365. Victims and Prisoners Act 2024 Act 2 definitions
  366. The Victims' Payments Regulations 2020 SI 2 definitions
  367. Water Act 1989 Act
  368. The Water Act 2003 (Commencement No. 8) Order 2008 SI
  369. The Water Environment (Water Framework Directive) (Solway Tweed River Basin District) Regulations 2004 SI 3 definitions
  370. Water Industry Act 1991 Act 5 definitions
  371. The Water Resources (Abstraction and Impounding) Regulations 2006 SI 5 definitions
  372. Water Resources Act 1991 Act 3 definitions
  373. The Water Supply and Sewerage Services (Customer Service Standards) Regulations 2008 SI
  374. The Welfare Reform Act 2007 (Commencement No.4, and Savings and Transitional Provisions) Order 2007 SI
  375. Welfare Reform Act 2009 Act 2 definitions
  376. Wildlife and Countryside Act 1981 Act 11 definitions
  377. Wireless Telegraphy Act 2006 Act

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