Legislation – Data Protection Act 2018
Changes to legislation:
Data Protection Act 2018, Section 149 is up to date with all changes known to be in force on or before 09 April 2026. 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 Section 149:
- s. 26(2)(f)(ai) omitted by 2025 c. 18 Sch. 10 para. 9
- s. 44(1)(da) inserted by 2025 c. 18 Sch. 10 para. 10(2)(a)
- s. 44(5)(ca) inserted by 2025 c. 18 Sch. 10 para. 10(3)(a)
- s. 45(2)(ea) inserted by 2025 c. 18 Sch. 10 para. 11(2)(a)
- s. 45(5)(ca) inserted by 2025 c. 18 Sch. 10 para. 11(3)(a)
- s. 45A(2)(ca) inserted by 2025 c. 18 Sch. 10 para. 12
- s. 48(1)(b)(iia) inserted by 2025 c. 18 Sch. 10 para. 13(2)(a)
- s. 48(4)(ba) inserted by 2025 c. 18 Sch. 10 para. 13(3)(a)
- s. 149(1) words substituted by 2025 c. 18 Sch. 10 para. 16(2)
- s. 149(5A) inserted by 2025 c. 18 Sch. 10 para. 16(3)
- s. 149(6) words substituted by 2025 c. 18 Sch. 10 para. 16(4)
- s. 157(4A) inserted by 2025 c. 18 Sch. 10 para. 18
- s. 187(2)(za) inserted by 2025 c. 18 Sch. 10 para. 21(3)(a)
- Sch. 3 para. 8(1)(y) added by 2022 c. 18 (N.I.) Sch. 3 para. 78(3)
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):
- s. 26(2)(f)(ai) omitted by 2025 c. 18 Sch. 10 para. 9
- s. 44(1)(da) inserted by 2025 c. 18 Sch. 10 para. 10(2)(a)
- s. 44(5)(ca) inserted by 2025 c. 18 Sch. 10 para. 10(3)(a)
- s. 45(2)(ea) inserted by 2025 c. 18 Sch. 10 para. 11(2)(a)
- s. 45(5)(ca) inserted by 2025 c. 18 Sch. 10 para. 11(3)(a)
- s. 45A(2)(ca) inserted by 2025 c. 18 Sch. 10 para. 12
- s. 48(1)(b)(iia) inserted by 2025 c. 18 Sch. 10 para. 13(2)(a)
- s. 48(4)(ba) inserted by 2025 c. 18 Sch. 10 para. 13(3)(a)
- s. 149(5A) inserted by 2025 c. 18 Sch. 10 para. 16(3)
- s. 157(4A) inserted by 2025 c. 18 Sch. 10 para. 18
- s. 187(2)(za) inserted by 2025 c. 18 Sch. 10 para. 21(3)(a)
- Sch. 3 para. 8(1)(y) added by 2022 c. 18 (N.I.) Sch. 3 para. 78(3)
PART 6Enforcement
Enforcement notices
149Enforcement notices
(1)
Where the Commissioner is satisfied that a person has failed, or is failing, as described in subsection (2), (3), (4) or (5), the Commissioner may give the person a written notice (an “enforcement notice”) which requires the person—
(a)
to take steps specified in the notice, or
(b)
to refrain from taking steps specified in the notice,
or both (and see also sections 150 and 151).
(2)
The first type of failure is where a controller or processor has failed, or is failing, to comply with any of the following—
(a)
a provision of Chapter II of the F1UK GDPR or Chapter 2 of Part 3 or Chapter 2 of Part 4 of this Act (principles of processing);
(b)
(c)
a provision of Articles 25 to 39 of the F5UK GDPR or section 64 or 65 of this Act (obligations of controllers and processors);
(d)
a requirement to communicate a personal data breach to the Commissioner or a data subject under section 67, 68 or 108 of this Act;
(3)
The second type of failure is where a monitoring body has failed, or is failing, to comply with an obligation under Article 41 of the F8UK GDPR (monitoring of approved codes of conduct).
(4)
The third type of failure is where a person who is a certification provider—
(a)
does not meet the requirements for accreditation,
(b)
has failed, or is failing, to comply with an obligation under Article 42 or 43 of the F9UK GDPR (certification of controllers and processors), or
(c)
has failed, or is failing, to comply with any other provision of the F10UK GDPR (whether in the person’s capacity as a certification provider or otherwise).
(5)
The fourth type of failure is where a controller has failed, or is failing, to comply with regulations under section 137.
(6)
An enforcement notice given in reliance on subsection (2), (3) or (5) may only impose requirements which the Commissioner considers appropriate for the purpose of remedying the failure.
(7)
An enforcement notice given in reliance on subsection (4) may only impose requirements which the Commissioner considers appropriate having regard to the failure (whether or not for the purpose of remedying the failure).
(8)
The Secretary of State may by regulations confer power on the Commissioner to give an enforcement notice in respect of other failures to comply with the data protection legislation.
(9)
Regulations under this section—
(a)
may make provision about the giving of an enforcement notice in respect of the failure, including by amending this section and sections 150 to 152,
(b)
may make provision about the giving of an information notice, an assessment notice F11, an interview notice or a penalty notice, or about powers of entry and inspection, in connection with the failure, including by amending sections 142, 143, 146, 147 F12, 148A, 148B and 155 to 157 and Schedules 15 and 16, and
(c)
are subject to the affirmative resolution procedure.