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Water Industry Act 1991
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Changes over time for: Section 66I
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Changes to legislation:
Water Industry Act 1991, Section 66I is up to date with all changes known to be in force on or before 21 November 2024. There are changes that may be brought into force at a future date. Changes that have been made appear in the content and are referenced with annotations.
Changes to Legislation
Revised legislation carried on this site may not be fully up to date. Changes and effects are recorded by our editorial team in lists which can be found in the ‘Changes to Legislation’ area. Where those effects have yet to be applied to the text of the legislation by the editorial team they are also listed alongside the legislation in the affected provisions. Use the ‘more’ link to open the changes and effects relevant to the provision you are viewing.
Changes and effects yet to be applied to the whole Act associated Parts and Chapters:
Whole provisions yet to be inserted into this Act (including any effects on those provisions):
- Pt. 3 Ch. 2B inserted by 2014 c. 21 s. 12
- s. 14B(6) inserted by 2024 c. 13 Sch. 30 para. 12(4)
- s. 16B(11) inserted by 2024 c. 13 Sch. 30 para. 13(4)
- s. 17(2)(aa) inserted by S.I. 2019/93, Sch. 1 para. 4(4)(b) (as substituted) by S.I. 2019/1245 reg. 21 (This amendment not applied to legislation.gov.uk. The affecting statutory instrument has no legal effect. It was made under a procedure which meant that it ceased to have effect 28 days after signing unless it was debated and approved in Parliament within that time. It was not debated and approved within 28 days, so it has expired with no effect.)
- s. 17A(c) repealed by 2014 c. 21 Sch. 5 para. 4(2(c)
- s. 17A(d) repealed by 2014 c. 21 Sch. 5 para. 4(2)(c)
- s. 17A(2)(ba) and word inserted by 2014 c. 21 Sch. 5 para. 4(2)(b)
- s. 17M(6) inserted by 2024 c. 13 Sch. 30 para. 14(4)
- s. 17Q(11) inserted by 2024 c. 13 Sch. 30 para. 15(4)
- s. 17R(2)(aa) inserted by S.I. 2019/93, Sch. 1 para. 4(7)(b) (as substituted) by S.I. 2019/1245 reg. 21 (This amendment not applied to legislation.gov.uk. The affecting statutory instrument has no legal effect. It was made under a procedure which meant that it ceased to have effect 28 days after signing unless it was debated and approved in Parliament within that time. It was not debated and approved within 28 days, so it has expired with no effect.)
- s. 17AA(1)(ba)(bb) inserted by 2014 c. 21 Sch. 5 para. 5(2)
- s. 17BA(5A) inserted by 2014 c. 21 Sch. 5 para. 7(3)
- s. 17HA(9)(b)(ia) inserted by 2014 c. 21 Sch. 5 para. 16(2)
- s. 23(2AA) inserted by 2014 c. 21 Sch. 7 para. 35(4)
- s. 23(8)(9) inserted by 2014 c. 21 Sch. 7 para. 35(10)
- s. 31(10) inserted by 2024 c. 13 Sch. 29 para. 12
- s. 39E-39H inserted by 2021 c. 30 s. 78(7)
- s. 87(7C)-(7F) inserted by 2012 c. 7 s. 35(6)
- s. 95ZA(6) inserted by 2014 c. 21 Sch. 5 para. 39(4)
- s. 96ZA(2)-(5) substituted for s. 96ZA(2) by 2014 c. 21 Sch. 5 para. 40
- s. 106B(3A) inserted by 2014 c. 21 Sch. 7 para. 94
- s. 117G(2)(aa) inserted by 2014 c. 21 Sch. 5 para. 41(2)
- s. 117G(4)-(4D) substituted for s. 117(4) by 2014 c. 21 Sch. 5 para. 41(3)
- s. 117G(6)(aa) inserted by 2014 c. 21 Sch. 5 para. 41(4)
- s. 117K(2)(aa) inserted by 2014 c. 21 Sch. 5 para. 42(2)
- s. 117K(5)(5A) substituted for s. 117(5) by 2014 c. 21 Sch. 5 para. 42(3)
- s. 117L(9) inserted by 2014 c. 21 Sch. 5 para. 43(3)
- s. 117N(4)(aa) inserted by 2014 c. 21 Sch. 5 para. 45(2)
- s. 117N(8)(aa) inserted by 2014 c. 21 Sch. 5 para. 45(3)
- s. 117N(11)(aa) inserted by 2014 c. 21 Sch. 5 para. 45(4)
- s. 117O(4)(aa) inserted by 2014 c. 21 Sch. 5 para. 46(2)
- s. 117O(8)(aa) inserted by 2014 c. 21 Sch. 5 para. 46(3)
- s. 117S(7)-(9) inserted by 2014 c. 21 Sch. 5 para. 49
- s. 119(2)(ab) inserted by 2003 c. 37 s. 89(1)(a)
- s. 119(3) inserted by 2003 c. 37 s. 89(1)(b)
- s. 121(1)(ba) inserted by 2003 c. 37 s. 89(2)(a)
- s. 141DC inserted by 2021 c. 30 s. 83
- s. 177K(7)(aa) inserted by 2014 c. 21 Sch. 5 para. 42(4)
- s. 207D and cross-heading inserted by 2014 c. 21 s. 39
- s. 207D(5) word repealed by 2014 c. 21 Sch. 5 para. 52(a)
- s. 207D(5) words inserted by 2014 c. 21 Sch. 5 para. 52(b)
- s. 213(1ZA) inserted by 2014 c. 21 Sch. 7 para. 119(3)
- s. 213(1ZA) repealed by 2014 c. 21 Sch. 5 para. 53
[F166IProhibition on unauthorised use of supply systemE+W
(1)Subject to subsections (2) and (3) and section 66K below, no person shall use a water undertaker’s supply system for the purpose of supplying water to any premises [F2of—
(a)a customer,
(b)the person so using that system, or
(c)a person associated with that person].
(2)Subsection (1) above shall not apply where the supply is made—
(a)by the water undertaker, or
(b)by a [F3water supply licensee] in pursuance of [F4the licensee's licence].
(3)The Secretary of State may by regulations specify further circumstances in which subsection (1) above shall not apply.
(4)A person who contravenes subsection (1) above shall be guilty of an offence.
(5)Any undertaking entered into which involves a contravention of subsection (1) above shall be unenforceable.
(6)A person guilty of an offence under this section shall be liable—
(a)on summary conviction, to a fine not exceeding the statutory maximum, and
(b)on conviction on indictment, to a fine.
(7)No proceedings for an offence under this section shall be instituted except by—
(a)the Secretary of State, or
(b)the Authority.
(8)The functions of—
(a)making regulations under subsection (3) above; and
(b)instituting proceedings under subsection (7)(a) above,
are exercisable by the Assembly (and not by the Secretary of State) in relation to any supply system of a water undertaker whose area is wholly or mainly in Wales.
[F5(8A)For the purposes of this section, a person (A) is associated with another person (B) if they would be associated with each other for the purposes of Schedule 2A if A were a water supply licensee.]
(9)In this section and sections 66J and 66L below, references to the supply system of a water undertaker shall be construed in accordance with [F6section 17B].]
Textual Amendments
F1Pt. 3 Ch. 2A inserted (1.4.2004 for specified provisions and purposes and 1.12.2005 otherwise) by Water Act 2003 (c. 37), ss. 56, 105(3), Sch. 4 para. 3; S.I. 2004/641, art. 3(l), Sch. 1 (with art. 6, Sch. 3); S.I. 2005/2714, art. 3(a) (with Sch. 2 para. 8)
F2Words in s. 66I(1) substituted (1.4.2016) by Water Act 2014 (c. 21), s. 94(3), Sch. 2 para. 9(2); S.I. 2016/465, art. 2(j)(ii) (with Sch. 2) (as amended (22.3.2017) by S.I. 2017/462, art. 16)
F3Words in s. 66I(2)(b) substituted (1.4.2016) by Water Act 2014 (c. 21), s. 94(3), Sch. 2 para. 9(3)(a); S.I. 2016/465, art. 2(j)(ii) (with Sch. 2) (as amended (22.3.2017) by S.I. 2017/462, art. 16)
F4Words in s. 66I(2)(b) substituted (1.4.2016) by Water Act 2014 (c. 21), s. 94(3), Sch. 2 para. 9(3)(b); S.I. 2016/465, art. 2(j)(ii) (with Sch. 2) (as amended (22.3.2017) by S.I. 2017/462, art. 16)
F5S. 66I(8A) inserted (1.4.2017) by Water Act 2014 (c. 21), s. 94(3), Sch. 2 para. 9(4); S.I. 2017/462, art. 3(i)(vi)
F6Words in s. 66I(9) substituted (1.4.2017) by Water Act 2014 (c. 21), s. 94(3), Sch. 2 para. 9(5); S.I. 2017/462, art. 3(i)(vi)
Modifications etc. (not altering text)
C1S. 66I(1) restricted (1.12.2005) by The Water Supply (Exceptions from Supply System Prohibitions) Regulations 2005 (S.I. 2005/3075), reg. 3
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