Modifications etc. (not altering text)
C1Pt. 1: certain functions made exercisable concurrently (26.11.1998 for certain purposes and prosp. otherwise) by 1984 c. 12, s. 50(3) (as substituted by 1998 c. 41, s. 66(5), Sch. 10 Pt. II para. 2(6) (with s. 73); S.I. 1998/2750, art. 2)
C2Pt. 1 (except ss. 38(1)-(6), 51) amended (1.2.2001) by 2000 c. 38, ss. 86(1)(3), 89 (with ss. 105(2)(d)(5), 106); S.I. 2001/57, art. 3(1), Sch. 2 Pt. 1
C3Pt. 1 (except ss. 38(1)-(6), 51, 52(6) and (8) and 54) amended (1.2.2001) by 2000 c. 38, s. 86(4)(b)(5) (with ss. 105(2)(d)(5), 106); S.I. 2001/57, art. 3(1), Sch. 2 Pt. 1
Pt. 1 (except ss. 38(1)-(6), 51) amended (1.2.2001) by 2000 c. 38, s. 86(7)(b) (with ss. 105(2)(d)(5), 106); S.I. 2001/57, art. 3(1), Sch. 2 Pt. 1
C4Pt. 1 modified (25.7.2003 for specified purposes, 29.12.2003 in so far as not already in force) by Communications Act 2003 (c. 21), ss. 371(3), 411(2) (with Sch. 18); S.I. 2003/1900, arts. 1(2), 2(1), Sch. 1 (with art. 3) (as amended by S.I. 2003/3142, art. 1(3)); S.I. 2003/3142, art. 3(2) (with art. 11)
C5Pt. 1 certain functions made exercisable concurrently by 1998 c. 41, s. 67(3) (as substituted (1.5.2004) by The Competition Act 1998 and Other Enactments (Amendment) Regulations 2004 (S.I. 2004/1261), reg. 1(a), Sch. 2 para. 6(2)(a))
C6Pt. 1 certain functions made exercisable concurrently by 1991 c. 56, s. 31(3) (as substituted (1.5.2004) by The Competition Act 1998 and Other Enactments (Amendment) Regulations 2004 (S.I. 2004/1261), reg. 1(a), Sch. 2 para. 4(2)(a))
C7Pt. 1 certain functions made exercisable concurrently by S.I. 1992/231 (N.I. 1) art. 46(3) (as substituted (1.5.2004) by The Competition Act 1998 and Other Enactments (Amendment) Regulations 2004 (S.I. 2004/1261), reg. 1(a), Sch. 2 para. 5(2)(a))
C8Pt. 1 certain functions made exercisable concurrently by 1986 c. 44, s. 36A(3) (as substituted (1.5.2004) by The Competition Act 1998 and Other Enactments (Amendment) Regulations 2004 (S.I. 2004/1261), reg. 1(a), Sch. 2 para. 1(2)(a))
C9Pt. 1 restricted (1.5.2004) by The Competition Act 1998 and Other Enactments (Amendment) Regulations 2004 (S.I. 2004/1261), regs. 1(a), 9(2)
C10Pt. 1 certain functions made exercisable concurrently by 1989 c. 29, s. 43(3) (as substituted (1.5.2004) by The Competition Act 1998 and Other Enactments (Amendment) Regulations 2004 (S.I. 2004/1261), reg. 1(a), Sch. 2 para. 3(2)(a))
C11Pt. 1 certain functions made exercisable concurrently by S.I. 1996/275 (N.I. 2), art. 23(3) (as substituted (1.5.2004) by The Competition Act 1998 and Other Enactments (Amendment) Regulations 2004 (S.I. 2004/1261), reg. 1(a), Sch. 2 para. 9(2)(a))
C12Pt. 1 certain functions made exercisable concurrently (1.4.2007) by The Water and Sewerage Services (Northern Ireland) Order 2006 (S.I. 2006/3336), arts. 1(2), 29(3) (with arts. 8(8), 121(3), 307); S.R. 2007/194, art. 2(2), Sch. Pt. 2 (with Sch. 2)
C13Pt. 1 modified (1.4.2007) by The Water and Sewerage Services (Northern Ireland) Order 2006 (S.I. 2006/3336), arts. 1(2), 29(5) (with arts. 8(8), 121(3), 307); S.R. 2007/194, art. 2(2), Sch. Pt. 2 (with Sch. 2)
C14Pt. 1 modified (1.4.2013) by Health and Social Care Act 2012 (c. 7), ss. 72(3), 306(4); S.I. 2013/160, art. 2(2) (with arts. 7-9)
C15Pt. 1 functions made exercisable concurrently (6.4.2013) by Civil Aviation Act 2012 (c. 19), ss. 62(1)-(3), 110(1) (with s. 77(1)-(3), Sch. 10 paras. 12, 17); S.I. 2013/589, art. 2(1)-(3)
C16Pt. 1 modified in part (6.4.2013) by Civil Aviation Act 2012 (c. 19), ss. 62(4), 110(1) (with ss. 62(5), 77(1)-(3), Sch. 10 paras. 12, 17); S.I. 2013/589, art. 2(1)-(3)
C17Pt. 1 certain functions made exercisable concurrently by 2000 c. 8, s. 234J (as inserted (1.11.2014 for specified purposes, 1.4.2015 so far as not already in force) by Financial Services (Banking Reform) Act 2013 (c. 33), s. 148(5), Sch. 8 para. 3; S.I. 2014/2458, arts. 2(b)(aa)(i), 3(b)(v))
C18Pt. 1 certain functions made exercisable concurrently (1.11.2014 for specified purposes, 1.4.2015 so far as not already in force) by Financial Services (Banking Reform) Act 2013 (c. 33), ss. 61(2), 148(5); S.I. 2014/2458, arts. 2(a)(i), 3(b)(ii)
C19Pt. 1: certain functions made exercisable concurrently (26.12.2023) by Energy Act 2023 (c. 52), ss. 37, 334(3)(a) (with s. 38)
C20Pt. 1: certain functions made exercisable concurrently (E.W.S.) (27.1.2026 for specified purposes) by The Heat Networks (Market Framework) (Great Britain) Regulations 2025 (S.I. 2025/269), regs. 1(4)(5), 46(2)(a)
C21Pt. 1 modified (27.1.2026 for specified purposes) (E.W.S.) by The Heat Networks (Market Framework) (Great Britain) Regulations 2025 (S.I. 2025/269), regs. 1(4)(5), 46(3)(a)
Modifications etc. (not altering text)
C22Pt. 1 Ch. 3 applied in part (31.10.2023) by The Transport (Scotland) Act 2019 (Consequential Provisions and Modifications) Order 2023 (S.I. 2023/80), arts. 1(3), 22
(1)For the purposes of an investigation [F2under section 25], the [F3CMA] may require any person to produce to [F4it] a specified document, or to provide [F4it] with specified information, which [F4it] considers relates to any matter relevant to the investigation.
(2)The power conferred by subsection (1) is to be exercised by a notice in writing.
(3)A notice under subsection (2) must F5...—
(a)[F6indicate] the subject matter and purpose of the investigation; and
[F7(b)include information about the possible consequences of failing to comply with the notice.]
(4)In subsection (1) “specified” means—
(a)specified, or described, in the notice; or
(b)falling within a category which is specified, or described, in the notice.
(5)The [F8CMA] may also specify in the notice—
(a)the time and place at which any document is to be produced or any information is to be provided;
(b)the manner and form in which it is to be produced or provided.
(6)The power under this section to require a person to produce a document includes power—
(a)if the document is produced—
(i)to take copies of it or extracts from it;
(ii)to require him, or any person who is a present or past officer of his, or is or was at any time employed by him, to provide an explanation of the document;
(b)if the document is not produced, to require him to state, to the best of his knowledge and belief, where it is.
Textual Amendments
F1S. 26 heading substituted (1.4.2014) by Enterprise and Regulatory Reform Act 2013 (c. 24), ss. 39(3), 103(3); S.I. 2014/416, art. 2(1)(b) (with Sch.)
F2Words in s. 26(1) cease to have effect (1.5.2004) by The Competition Act 1998 and Other Enactments (Amendment) Regulations 2004 (S.I. 2004/1261), reg. 1(a), Sch. 1 para. 11 (with reg. 6(2))
F3Word in s. 26(1) substituted (1.4.2014) by Enterprise and Regulatory Reform Act 2013 (c. 24), s. 103(3), Sch. 5 para. 6 (with s. 28); S.I. 2014/416, art. 2(1)(d) (with Sch.)
F4Words in s. 26(1) substituted (1.4.2003) by Enterprise Act 2002 (c. 40), s. 279, Sch. 25 para. 38(20)(a); S.I. 2003/766, art. 2, Sch. (with art. 3) (as amended (20.7.2007) by S.I. 2007/1846, reg. 3(2), Sch.)
F5Word in s. 26(3) omitted (1.1.2025) by virtue of Digital Markets, Competition and Consumers Act 2024 (c. 13), s. 339(1), Sch. 10 para. 2(2); S.I. 2024/1226, regs. 1(2), 2(1)(14)
F6Word in s. 26(3)(a) inserted (1.1.2025) by Digital Markets, Competition and Consumers Act 2024 (c. 13), s. 339(1), Sch. 10 para. 2(3); S.I. 2024/1226, regs. 1(2), 2(1)(14)
F7S. 26(3)(b) substituted (1.1.2025) by Digital Markets, Competition and Consumers Act 2024 (c. 13), s. 339(1), Sch. 10 para. 2(4); S.I. 2024/1226, regs. 1(2), 2(1)(14)
F8Word in s. 26(5) substituted (1.4.2014) by Enterprise and Regulatory Reform Act 2013 (c. 24), s. 103(3), Sch. 5 para. 6 (with s. 28); S.I. 2014/416, art. 2(1)(d) (with Sch.)
Modifications etc. (not altering text)
C23Ss. 26-30 applied by 1986 c. 46, s. 9C(2) (as inserted (20.6.2003) by Enterprise Act 2002 (c. 40), ss. 204(2), 279; S.I. 2003/1397, art. 2(1), Sch.)
C24Ss. 26-30 applied by S.I. 2002/3150 (N.I. 4), art. 13C(2) (as inserted (19.12.2005) by The Company Directors Disqualification (Amendment) (Northern Ireland) Order 2005 (S.I. 2005/1454), arts. 1(3), 3; S.R. 2005/514, art. 2)
C25Ss. 26-29 powers extended (1.1.2025) by Digital Markets, Competition and Consumers Act 2024 (c. 13), ss. 319, 339(1); S.I. 2024/1226, regs. 1(2), 2(1)(4)