{
  "url": "https://openlegislation.uk/enterprise-act-2002/section-166",
  "json_url": "https://openlegislation.uk/enterprise-act-2002/section-166.json",
  "legislation": "ukpga/2002/40",
  "legislation_title": "Enterprise Act 2002",
  "legislation_url": "https://openlegislation.uk/enterprise-act-2002",
  "path": "section/166",
  "kind": "section",
  "number": "166",
  "heading": "Register of undertakings and orders: Part 4",
  "text": "(1) The CMA shall compile and maintain a register for the purposes of this Part.\n(2) The register shall be kept in such form as the CMA considers appropriate.\n(3) The CMA shall ensure that the following matters are entered in the register—\n(a) the provisions of any enforcement undertaking accepted by virtue of this Part ...;\n(b) the provisions of any enforcement order made by virtue of this Part ...; and\n(c) the details of any variation, release or revocation of such an undertaking or order.\n(4) The duty in subsection (3) does not extend to anything of which the CMA is unaware.\n(5) The ... Secretary of State and any relevant sectoral regulator shall inform the CMA of any matters which are to be included in the register by virtue of subsection (3) and which relate to enforcement undertakings accepted by them or enforcement orders made by them.\n(6) The CMA shall ensure that the contents of the register are available to the public—\n(a) during (as a minimum) such hours as may be specified in an order made by the Secretary of State; and\n(b) subject to such reasonable fees (if any) as the CMA may determine.\n(7) If requested by any person to do so and subject to such reasonable fees (if any) as the CMA may determine, the CMA shall supply the person concerned with a copy (certified to be true) of the register or of an extract from it.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Word in s. 166(1)(2) substituted (1.4.2014) by Enterprise and Regulatory Reform Act 2013 (c. 24), s. 103(3), Sch. 5 para. 196(2) (with s. 28); S.I. 2014/416, art. 2(1)(d) (with Sch.)"
    },
    {
      "type": "F",
      "label": "F2",
      "text": "Word in s. 166(3) substituted (1.4.2014) by Enterprise and Regulatory Reform Act 2013 (c. 24), s. 103(3), Sch. 5 para. 196(3)(a) (with s. 28); S.I. 2014/416, art. 2(1)(d) (with Sch.)"
    },
    {
      "type": "F",
      "label": "F3",
      "text": "Words in s. 166(3)(a) omitted (1.4.2014) by virtue of Enterprise and Regulatory Reform Act 2013 (c. 24), s. 103(3), Sch. 5 para. 196(3)(b) (with s. 28); S.I. 2014/416, art. 2(1)(d) (with Sch.)"
    },
    {
      "type": "F",
      "label": "F4",
      "text": "Words in s. 166(3)(b) omitted (1.4.2014) by virtue of Enterprise and Regulatory Reform Act 2013 (c. 24), s. 103(3), Sch. 5 para. 196(3)(c) (with s. 28); S.I. 2014/416, art. 2(1)(d) (with Sch.)"
    },
    {
      "type": "F",
      "label": "F5",
      "text": "Word in s. 166(4) substituted (1.4.2014) by Enterprise and Regulatory Reform Act 2013 (c. 24), s. 103(3), Sch. 5 para. 196(4) (with s. 28); S.I. 2014/416, art. 2(1)(d) (with Sch.)"
    },
    {
      "type": "F",
      "label": "F6",
      "text": "Words in s. 166(5) omitted (1.4.2014) by virtue of Enterprise and Regulatory Reform Act 2013 (c. 24), s. 103(3), Sch. 5 para. 196(5)(a) (with s. 28); S.I. 2014/416, art. 2(1)(d) (with Sch.)"
    },
    {
      "type": "F",
      "label": "F7",
      "text": "Word in s. 166(5) substituted (1.4.2014) by Enterprise and Regulatory Reform Act 2013 (c. 24), s. 103(3), Sch. 5 para. 196(5)(b) (with s. 28); S.I. 2014/416, art. 2(1)(d) (with Sch.)"
    },
    {
      "type": "F",
      "label": "F8",
      "text": "Word in s. 166(6)(7) substituted (1.4.2014) by Enterprise and Regulatory Reform Act 2013 (c. 24), s. 103(3), Sch. 5 para. 196(6) (with s. 28); S.I. 2014/416, art. 2(1)(d) (with Sch.)"
    },
    {
      "type": "C",
      "label": "C1",
      "text": "Ss. 91(3), 92(1)(a), 162(1), 166(3) modified (20.6.2003) by 1977 c. 37, s. 50A(7) (as inserted by Enterprise Act 2002 (c. 40), ss. 278, 279, Sch. 25 para. 8(2)); S.I. 2003/1397, art. 2(1), Sch. (with art. 8)"
    },
    {
      "type": "C",
      "label": "C2",
      "text": "Ss. 162(1), 166(3) modified (20.6.2003) by S.I. 1982/1080 (N.I. 12), art. 23(6) (as substituted by Enterprise Act 2002 (c. 40), ss. 278, 279, Sch. 25 para. 12(2)); S.I. 2003/1397, art. 2(1), Sch. (with art. 8)"
    },
    {
      "type": "C",
      "label": "C3",
      "text": "Ss. 162(1), 166(3) modified (20.6.2003) by S.I. 1982/1080 (N.I. 12), art. 42(5A) (as inserted by Enterprise Act 2002 (c. 40), ss. 278, 279, Sch. 25 para 12(3)(e)); S.I. 2003/1397, art. 2(1), Sch. (with art. 8)"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/ukpga/2002/40/section/166",
    "retrieved_at": "2026-10-28T17:09:23.548614+00:00",
    "licence": "OGL-UK-3.0",
    "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
    "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
  }
}