Defined term

“undertaking”

Defined in 60 Acts, 86 statutory instruments and 5 EU-derived instruments.

  1. Acquisition of Land Act 1981 Act
  2. Adoption and Children Act 2002 Act
  3. The Air Navigation (Isle of Man) Order 2007 SI
  4. The Air Navigation (Isle of Man) Order 2015 SI 2 definitions
  5. The Air Navigation Order 2000 SI
  6. The Air Navigation (Overseas Territories) Order 2001 SI
  7. The Air Navigation (Overseas Territories) Order 2007 SI
  8. The Air Navigation (Overseas Territories) Order 2013 SI
  9. The Amendments of the Law (Resolution of Silicon Valley Bank UK Limited) (No. 2) Order 2023 SI
  10. The Amendments of the Law (Resolution of Silicon Valley Bank UK Limited) Order 2023 SI
  11. Atomic Weapons Establishment Act 1991 Act
  12. Bank of England Act 1998 Act
  13. The Bank of England (Information Powers) Order 1998 SI
  14. The Bank of England Levy (Amount of Levy Payable) Regulations 2024 SI
  15. The Bank Recovery and Resolution (No. 2) Order 2014 SI
  16. Banking (Special Provisions) Act 2008 Act 2 definitions
  17. The Bitton Railway Order 2002 SI
  18. The Building Societies (Accounts and Related Provisions) Regulations 1998 SI
  19. Building Societies Act 1986 Act
  20. Capital Allowances Act 2001 Act 3 definitions
  21. The Care and Support (Market Oversight Criteria) Regulations 2015 SI
  22. The Care and Support (Market Oversight Information) Regulations 2014 SI
  23. Care Standards Act 2000 Act
  24. The Cash Ratio Deposits (Eligible Liabilities) Order 1998 SI
  25. Charities Act 2011 Act 2 definitions
  26. The Charities (Disclosure of Revenue and Customs Information to the Charity Commission for Northern Ireland) Regulations 2010 SI
  27. The Civil Aviation (Investigation of Air Accidents and Incidents) (Jersey) Order 2000 SI
  28. The Civil Aviation (Investigation of Military Air Accidents at Civil Aerodromes) Regulations 2005 SI
  29. Civil Evidence (Scotland) Act 1988 Act
  30. The Clean Heat Market Mechanism Regulations 2025 SI
  31. Coal Industry Act 1994 Act 2 definitions
  32. The Commission for the New Towns (Transfer of Undertaking and Functions) (Tees Barrage) Order 2001 SI
  33. Commission Implementing Regulation (EU) No 964/2014 of 11 September 2014 laying down rules for the application of Regulation (EU) No 1303/2013 of the European Parliament and of the Council as regards standard terms and conditions for financial instruments EU regulation
  34. Commission Regulation (EU) No 965/2012 of 5 October 2012 laying down technical requirements and administrative procedures related to air operations pursuant to Regulation (EC) No 216/2008 of the European Parliament and of the Council EU regulation
  35. Commissioners Clauses Act 1847 Act
  36. Companies Act 1985 Act
  37. Companies Act 2006 Act
  38. The Companies Act 2006 (Commencement No. 5, Transitional Provisions and Savings) Order 2007 SI
  39. Competition Act 1998 Act
  40. The Competition Act 1998 (Motor Vehicle Agreements Block Exemption) (No. 2) Order 2023 SI
  41. The Competition Act 1998 (Research and Development Agreements Block Exemption) Order 2022 SI
  42. The Competition Act 1998 (Specialisation Agreements Block Exemption) Order 2022 SI
  43. The Competition Act 1998 (Technology Transfer Agreements Block Exemption) Order 2026 SI
  44. The Competition Act 1998 (Vertical Agreements Block Exemption) Order 2022 SI
  45. The Competition Appeal Tribunal Rules 2015 SI
  46. Compulsory Purchase Act 1965 Act
  47. Consumer Rights Act 2015 Act
  48. Corporation Tax Act 2009 Act
  49. The CRC Energy Efficiency Scheme Order 2013 SI 4 definitions
  50. Criminal Procedure (Scotland) Act 1995 Act
  51. Digital Economy Act 2017 Act 2 definitions
  52. Digital Markets, Competition and Consumers Act 2024 Act 3 definitions
  53. The Digital Markets, Competition and Consumers Act 2024 and Consumer Rights Act 2015 (Turnover and Control) Regulations 2024 SI 2 definitions
  54. The East Midlands Parkway Station (Land Acquisition) Order 2005 SI
  55. The Education (Student Support) Regulations 2000 (Amendment) (No. 3) Regulations 2000 SI
  56. Energy Act 1976 Act
  57. Energy Act 2004 Act
  58. Energy Act 2013 Act
  59. Energy Act 2023 Act 2 definitions
  60. The Energy Savings Opportunity Scheme Regulations 2014 SI
  61. Enterprise Act 2002 Act
  62. The Enterprise Act 2002 (Mergers and Market Investigations) (Determination of Control and Turnover for Penalties) Regulations 2024 SI
  63. Environment Act 2021 Act
  64. The Environmental Permitting (England and Wales) Regulations 2016 SI 2 definitions
  65. The Felixstowe Dock and Railway Company (Land Acquisition) Order 2007 SI
  66. Finance Act 2008 Act
  67. Finance Act 2014 Act
  68. Finance Act 2026 Act
  69. Financial Services and Markets Act 2000 Act
  70. The Financial Services and Markets Act 2000 (Excluded Activities and Prohibitions) Order 2014 SI
  71. The Financial Services and Markets Act 2000 (Ring-fenced Bodies and Core Activities) Order 2014 SI
  72. The Financial Transparency (EC Directive) Regulations 2009 SI
  73. Government of Wales Act 2006 Act 2 definitions
  74. The Great Central Railway (East Leake Branch, etc.) Order 2000 SI
  75. High Speed Rail (London - West Midlands) Act 2017 Act 2 definitions
  76. High Speed Rail (West Midlands - Crewe) Act 2021 Act 3 definitions
  77. The Hinkley Point (Temporary Jetty) (Land Acquisition) Order 2012 SI
  78. Housing and Regeneration Act 2008 Act
  79. The Human Medicines Regulations 2012 SI
  80. Income Tax (Earnings and Pensions) Act 2003 Act
  81. Industrial Development Act 1982 Act
  82. The Information and Consultation of Employees Regulations 2004 SI
  83. The Infrastructure Planning (Model Provisions) (England and Wales) Order 2009 SI
  84. The Insurance and Reinsurance Undertakings (Prudential Requirements) Regulations 2023 SI
  85. The International Accounting Standards and European Public Limited-Liability Company (Amendment etc.) (EU Exit) Regulations 2019 SI
  86. Levelling-up and Regeneration Act 2023 Act
  87. Local Government (Miscellaneous Provisions) Act 1976 Act
  88. Local Government, Planning and Land Act 1980 Act
  89. The Marine Licensing (Exempted Activities) Order 2011 SI
  90. The Motor Fuel Price (Open Data) Regulations 2025 SI
  91. National Health Service Act 1977 Act
  92. National Loans Act 1968 Act
  93. National Security and Investment Act 2021 Act
  94. The Network Rail (Blackthorn and Piddington) (Land Acquisition) Order 2015 SI
  95. The Network Rail (Cambridgeshire Level Crossing Reduction) Order 2020 SI
  96. The Network Rail (Chart Leacon) Order 2021 SI
  97. The Network Rail (Closure of Abbots Ripton Level Crossing) Order 2017 SI
  98. The Network Rail (Kings Mill No. 1 Level Crossing) (Land Acquisition and Closure) Order 2018 SI
  99. The Network Rail (Northumberland Park Level Crossing and Coppermill Lane Level Crossing Closure) Order 2017 SI
  100. The Network Rail (Oxford Station Phase 2 Improvements (Land Only)) (No. 2) Order 2022 SI
  101. The Network Rail (Oxford Station Phase 2 Improvements (Land Only)) Order 2022 SI
  102. The Network Rail (Reading) (Land Acquisition) Order 2009 SI
  103. The Network Rail (Seaham Level Crossing) Order 2013 SI
  104. The Network Rail (Suffolk Level Crossing Reduction) Order 2020 SI
  105. The Network Rail (Thameslink) (Land Acquisition) Order 2008 SI
  106. The Non-Domestic Rating (Alteration of Lists and Appeals) (England) Regulations 2009 SI
  107. Northern Ireland (Stormont Agreement and Implementation Plan) Act 2016 Act
  108. The Northern Rock plc Transfer Order 2009 SI
  109. The NRAM plc (formerly Northern Rock plc) Consequential and Supplementary Provisions Order 2016 SI
  110. The Occupational Pension Schemes (Collective Money Purchase Schemes) (Extension to Unconnected Multiple Employer Schemes and Miscellaneous Provisions) Regulations 2025 SI
  111. The Occupational Pension Schemes (Funding and Investment Strategy and Amendment) Regulations 2024 SI
  112. The Occupational Pension Schemes (Preservation of Benefit) Regulations 1991 SI 2 definitions
  113. The Oil and Gas Authority (Levy and Fees) Regulations 2023 SI
  114. The Oil and Gas Authority (Levy and Fees) Regulations 2024 SI
  115. The Oil and Gas Authority (Levy and Fees) Regulations 2025 SI
  116. The Oil and Gas Authority (Levy and Fees) Regulations 2026 SI
  117. The Oil Stocking Order 2012 SI
  118. Pension Schemes Act 2021 Act
  119. Planning and Infrastructure Act 2025 Act
  120. Police Act 1996 Act
  121. Proceeds of Crime Act 2002 Act
  122. Procurement Act 2023 Act
  123. Radioactive Substances Act 1993 Act
  124. Regulation (EC) No 1071/2009 of the European Parliament and of the Council of 21 October 2009 establishing common rules concerning the conditions to be complied with to pursue the occupation of road transport operator and repealing Council Directive 96/26/EC (Text with EEA relevance) EU regulation
  125. 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
  126. Regulation (EU) No 517/2014 of the European Parliament and of the Council of 16 April 2014 on fluorinated greenhouse gases and repealing Regulation (EC) No 842/2006 (Text with EEA relevance) EU regulation
  127. The Reports on Payments to Governments Regulations 2014 SI
  128. The Reserve Forces (Payments to Employers and Partners) Regulations 2014 SI
  129. Reserve Forces (Safeguard of Employment) Act 1985 Act
  130. The River Tyne (Tunnels) Order 2005 SI
  131. The Rixton and Warburton Bridge Order 2024 SI
  132. Sexual Offences Act 2003 Act
  133. The Single Source Contract Regulations 2014 SI
  134. Small Business, Enterprise and Employment Act 2015 Act 2 definitions
  135. The Social Security (Contributions) Regulations 2001 SI
  136. Statistics and Registration Service Act 2007 Act
  137. Steel Industry (Nationalisation) Act 2026 Act
  138. Steel Industry (Special Measures) Act 2025 Act
  139. Taxation (Cross-border Trade) Act 2018 Act 2 definitions
  140. The Teesport (Land Acquisition) Order 2008 SI
  141. The Telford Railfreight Terminal (Donnington) Order 2005 SI
  142. Terrorism Act 2000 Act
  143. The Tobacco Products Regulations 2001 SI
  144. The Town and Country Planning (Entertainment Resort Complex, Bedford) Special Development (No. 2) Order 2025 SI
  145. Trade Union and Labour Relations (Consolidation) Act 1992 Act 2 definitions
  146. The Transport for Greater Manchester (Light Rapid Transit System) (Miscellaneous Provisions) Order 2013 SI
  147. Value Added Tax Act 1994 Act
  148. The Value Added Tax (Disclosure of Avoidance Schemes) (Designations) Order 2004 SI
  149. The Value Added Tax Regulations 1995 SI 2 definitions
  150. The Value Added Tax (Section 55A) (Specified Services and Excepted Supplies) Order 2019 SI
  151. The Water Industry (Specified Infrastructure Projects) (English Undertakers) Regulations 2013 SI
  152. Betting, Gaming and Lotteries Act 1963 (repealed) ActRevoked

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