Defined term

“business day”

Defined in 12 Acts, 133 statutory instruments and 2 EU-derived instruments.

  1. The Absolute Ground for Possession for Anti-social Behaviour (Review Procedure) (England) Regulations 2014 SI
  2. The Afghanistan (United Nations Sanctions) Channel Islands) Order 2001 SI
  3. The Agricultural Land Tribunals (Rules) Order 2007 SI
  4. The Alcoholic Products (Excise Duty) Regulations 2023 SI
  5. The Associated British Ports (Immingham Green Energy Terminal) Order 2025 SI 2 definitions
  6. The Asylum and Immigration Tribunal (Fast Track Procedure) Rules 2005 SI
  7. The Asylum and Immigration Tribunal (Procedure) Rules 2005 SI
  8. The Bank Recovery and Resolution (No. 2) Order 2014 SI
  9. Banking Act 2009 Act
  10. The Beacon Fen Energy Park Order 2026 SI
  11. The Bingo Duty Regulations 2003 SI
  12. The Biodiesel and Bioblend Regulations 2002 SI
  13. The Biofuels and Other Fuel Substitutes (Payment of Excise Duties etc.) Regulations 2004 SI
  14. The Boston Alternative Energy Facility Order 2023 SI 2 definitions
  15. The Business Rate Supplements (Transfers to Revenue Accounts) (England) Regulations 2009 SI
  16. The Carbon Dioxide Transport and Storage (Licensed Operators) Administration (England and Wales) Rules 2025 SI
  17. The Civil Legal Aid (Procedure) Regulations 2012 SI
  18. The Civil Legal Aid (Statutory Charge) Regulations 2013 SI
  19. The Civil Procedure Rules 1998 SI 4 definitions
  20. The Clergy Conduct Rules 2026 SI
  21. The Community Legal Service (Asylum and Immigration Appeals) Regulations 2005 SI
  22. The Community Legal Service (Costs) Regulations 2000 SI
  23. Companies Act 1989 Act
  24. The Companies Act 1989 (Register of Auditors and Information about Audit Firms) Regulations 1991 SI
  25. The Competition Appeal Tribunal Rules 2003 SI
  26. The Competition Appeal Tribunal Rules 2015 SI
  27. The Competition Commission Appeal Tribunal Rules 2000 SI
  28. The Conduct of Employment Agencies and Employment Businesses Regulations 2003 SI
  29. Corporation Tax Act 2010 Act
  30. The Cory Decarbonisation Project Order 2025 SI 3 definitions
  31. The Council Tax (Administration and Enforcement) Regulations 1992 SI 2 definitions
  32. The Council Tax (Alteration of Lists and Appeals) Regulations 1993 SI
  33. The Court of Protection Rules 2007 SI
  34. The Court of Protection Rules 2017 SI
  35. The Courts-Martial (Prosecution Appeals) (Supplementary Provisions) Order 2006 SI
  36. The Criminal Procedure (Amendment) Rules 2006 SI
  37. The Criminal Procedure Rules 2025 SI 2 definitions
  38. The Cross-Border Insolvency Regulations 2006 SI 2 definitions
  39. The Crown Court (Confiscation, Restraint and Receivership) Rules 2003 SI
  40. The Crown Court (Reports Relating to Adult Witnesses) Rules 2004 SI
  41. The Debt Respite Scheme (Breathing Space Moratorium and Mental Health Crisis Moratorium) (England and Wales) Regulations 2020 SI
  42. Decision of the European Central Bank of 24 July 2007 concerning the terms and conditions of TARGET2-ECB (ECB/2007/7) (2007/601/EC) EU decision 3 definitions
  43. The Education Administration Rules 2018 SI
  44. The Electricity and Gas (Market Integrity and Transparency) (Enforcement etc.) Regulations 2013 SI
  45. The Energy Administration Rules 2005 SI
  46. The Energy Bill Relief Scheme Regulations 2022 SI
  47. The Energy Bills Discount Scheme Regulations 2023 SI
  48. The Energy Supply Company Administration Rules 2013 SI
  49. The Equality Act 2010 (Obtaining Information) Order 2010 SI
  50. The Excise Duties (Deferred Payment) Regulations 1992 SI
  51. The Excise Goods (Aircraft and Ship’s Stores) Regulations 2015 SI
  52. The Excise Goods (Drawback) Regulations 1995 SI
  53. The Excise Goods (Holding, Movement and Duty Point) Regulations 2010 SI
  54. The Family Procedure (Adoption) Rules 2005 SI
  55. The Family Procedure Rules 2010 SI
  56. The Ferrybridge Multifuel 2 Power Station Order 2015 SI
  57. Finance Act 1999 Act
  58. The Financial Market Infrastructure Administration (England and Wales) Rules 2018 SI
  59. The Financial Markets and Insolvency (Money Market) Regulations 1995 SI
  60. The Financial Markets and Insolvency Regulations 1991 SI
  61. The Financial Markets and Insolvency Regulations 1996 SI
  62. The Financial Markets and Insolvency (Settlement Finality) Regulations 1999 SI
  63. The Financial Services and Markets Act 2000 (Financial Promotion) Order 2005 SI 2 definitions
  64. The Financial Services and Markets Act 2000 (Promotion of Collective Investment Schemes) (Exemptions) Order 2001 SI 2 definitions
  65. The Financial Services and Markets Act 2000 (Service of Notices) Regulations 2001 SI
  66. Financial Services and Markets Act 2023 Act
  67. The General Betting, Pool Betting and Remote Gaming Duties (Returns, Payments, Information and Records) Regulations 2014 SI
  68. The Government Stock Regulations 2004 SI
  69. The Hazardous Waste (England and Wales)Regulations 2005 SI
  70. The Housing Administration (England and Wales) Rules 2018 SI
  71. The Hydrocarbon Oil and Bioblend (Private Pleasure-flying and Private Pleasure Craft) (Payment of Rebate etc.) Regulations 2008 SI
  72. The HyNet Carbon Dioxide Pipeline Order 2024 SI
  73. The Immigration and Asylum Appeals (Procedure) Rules 2003 SI
  74. The Immigration (Claimant’s Credibility) Regulations 2004 SI
  75. The Immigration (Leave to Enter and Remain) Order 2000 SI
  76. The Immigration (Removal of Family Members) Regulations 2014 SI
  77. The Immingham Open Cycle Gas Turbine Order 2020 SI
  78. Income Tax Act 2007 Act
  79. The Individual Savings Account Regulations 1998 SI
  80. Insolvency Act 1986 Act 2 definitions
  81. The Insolvency (England and Wales) Rules 2016 SI 2 definitions
  82. The Insolvency Rules 1986 SI 2 definitions
  83. The Insolvent Companies (Reports on Conduct of Directors) (England and Wales) Rules 2016 SI
  84. The Investment Bank Special Administration (England and Wales) Rules 2011 SI
  85. The Investment Bank Special Administration Regulations 2011 SI
  86. The Judicial Committee (Appellate Jurisdiction) Rules Order 2009 SI
  87. The Judicial Committee (Appellate Jurisdiction) Rules Order 2024 SI
  88. The Judicial Discipline (Prescribed Procedures) Regulations 2006 SI
  89. The Judicial Discipline (Prescribed Procedures) Regulations 2014 SI
  90. The Knottingley Power Plant Order 2015 SI
  91. The Lake Lothing (Lowestoft) Third Crossing Order 2020 SI
  92. The Land Registration (Network Access) Rules 2008 SI
  93. The Land Registration (Referral to the Adjudicator to HM Land Registry) Rules 2003 SI
  94. The Land Registration Rules 2003 SI
  95. The Lasting Powers of Attorney, Enduring Powers of Attorney and Public Guardian Regulations 2007 SI
  96. The Liberia (United Nations Sanctions) (Channel Islands) Order 2001 SI
  97. Local Government and Housing Act 1989 Act
  98. Local Government Finance Act 1988 Act 3 definitions
  99. The Machine Games Duty Regulations 2012 SI
  100. The Magistrates' Courts (Reports Relating to Adult Witnesses) Rules 2004 SI
  101. The Magistrates' Courts Rules 1981 SI
  102. The Mental Health (Hospital, Guardianship and Treatment) (England) Regulations 2008 SI
  103. The National College for the Creative and Cultural Industries (Government) Regulations 2016 SI
  104. The National Grid (Bramford to Twinstead Reinforcement) Order 2024 SI
  105. The National Grid (Hinkley Point C Connection Project) Order 2016 SI
  106. The National Grid (King’s Lynn B Power Station Connection) Order 2013 SI
  107. The National Grid (North London Reinforcement Project) Order 2014 SI
  108. The Non-Domestic Rating (Collection and Enforcement) (Local Lists) Regulations 1989 SI 2 definitions
  109. The North Lincolnshire Green Energy Park Order 2025 SI
  110. The Offshore Chemicals Regulations 2002 SI
  111. The Offshore Combustion Installations (Prevention and Control of Pollution) Regulations 2001 SI
  112. The Offshore Petroleum Production and Pipe-lines (Assessment of Environmental Effects) Regulations 1999 SI
  113. Oil Taxation Act 1975 Act
  114. The Payment Accounts Regulations 2015 SI
  115. The Payment Services Regulations 2017 SI
  116. The Pipe-line Works (Environmental Impact Assessment) Regulations 2000 SI
  117. Police Reform and Social Responsibility Act 2011 Act
  118. The Portishead Branch Line (MetroWest Phase 1) Order 2022 SI
  119. The Postal Administration Rules 2013 SI
  120. The PPP Administration Order Rules 2007 SI
  121. The Proscribed Organisations Appeal Commission (Procedure) Rules 2007 SI
  122. The Public Charge Point Regulations 2023 SI
  123. The Pubs Code etc. Regulations 2016 SI
  124. The Railway Administration Order Rules 2001 SI
  125. The Railway Pensions (Designation, Substitution and Miscellaneous Provisions) Order 2001 SI
  126. 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
  127. The Reinforcement to the North Shropshire Electricity Distribution Network Order 2020 SI
  128. The Relevant Licensee Nuclear Company Administration (England and Wales) Rules 2023 SI
  129. The Remote Gaming Duty Regulations 2007 SI
  130. The River Humber Gas Pipeline Replacement Order 2016 SI
  131. The Riverside Energy Park Order 2020 SI
  132. The Silvertown Tunnel Order 2018 SI 2 definitions
  133. The Smart Meter Communication Licensee Administration (England and Wales) Rules 2020 SI
  134. The Smoke and Carbon Monoxide Alarm (England) Regulations 2015 SI
  135. The Solicitors (Disciplinary Proceedings) Rules 2019 SI
  136. The Space Industry (Appeals) Regulations 2021 SI
  137. The Special Immigration Appeals Commission (Procedure) Rules 2003 SI
  138. Steel Industry (Nationalisation) Act 2026 Act
  139. The Supreme Court Rules 2024 SI
  140. The Tees Combined Cycle Power Plant Order 2019 SI
  141. The Temporary Exclusion Orders (Notices) Regulations 2015 SI
  142. The Thames Water Utilities Limited (Thames Tideway Tunnel) Order 2014 SI 2 definitions
  143. The Tobacco Products Regulations 2001 SI
  144. The Triton Knoll Electrical System Order 2016 SI
  145. The Value Added Tax Regulations 1995 SI
  146. The Vaping Products (Production, Duty Stamps and Commencement) Regulations 2026 SI
  147. The Viking CCS Carbon Dioxide Pipeline Order 2025 SI

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