The Cyber Security and Resilience Bill, section by section

The Cyber Security and Resilience Bill (CSRB), as brought from the Commons, has 61 sections and two schedules across five Parts. Part 2 changes the NIS Regulations 2018, Part 3 gives ministers powers to update the regime, and Part 4 creates national security directions. This guide summarises each section.

Updated 2 November 2026Precursor Security
Where this stands

The Bill is not yet law. Regulation and section references come from the Bill as brought from the Commons (HL Bill 32). The Lords has since amended the Bill, so numbering and detail may change in the final Act. This guide is general information, not legal advice.

How the Bill is organised

The Cyber Security and Resilience Bill (CSRB) mostly works by amending existing law. That's why references often have two layers: a section of the Bill, and the regulation of the NIS Regulations 2018 it inserts or changes. Numbers below come from HL Bill 32 and may change.

Part 1: Introduction

Section What it does
1 Defines "the NIS Regulations"
2 Gives an overview of the Act

Part 2: The NIS Regulations

Who is regulated

Section What it does
3 Confirms essential service operators can be caught whether or not established in the UK, and keeps public electronic communications out of this route
4 Makes data centres an essential service regulated by Ofcom: 1 MW, or 10 MW on an enterprise basis
5 Applies data centre rules to the Crown, with exceptions for intelligence agencies and certain classified services
6 Adds large load controllers: 300 MW or more of potential electrical control
7 Redefines cloud computing and creates the "relevant digital service provider" definition
8 Updates RDSP risk management duties
9 Creates "managed service" and "relevant managed service provider"
10 Sets RMSP security duties (regulation 14B)
11 Defines "subject to public authority oversight"
12 Lets regulators designate critical suppliers (regulations 14H onwards)

Information and incidents

Section What it does
13 Requires data centre operators to give information to their regulator
14 Sets registration and UK representative rules for RDSPs and RMSPs
15 Widens "incident" and sets 24-hour and 72-hour notifications, with copies to the CSIRT
16 Requires data centres, RDSPs and RMSPs to notify affected UK customers

Other changes

Section What it does
17 Lets regulators charge regulated organisations to recover costs
18 Changes how regulators, GCHQ and others share and use information
19 Requires guidance on specified topics
20 Strengthens powers to require information
21 Updates financial penalties
22 Introduces Schedule 1 on enforcement and appeals
23 Introduces Schedule 2 on minor and consequential changes

Part 3: Functions of the Secretary of State

Section What it does
24 Defines key terms and lets ministers specify essential activities and regulators
25 Allows a statement of strategic priorities
26 Sets consultation and procedure for the statement, including at least 40 days for regulators
27 Requires regulators to have regard to it and seek to achieve relevant objectives
28 Requires reports to Parliament on how regulators are doing so
29 Allows regulations on security and resilience of systems
30 Allows those regulations to impose requirements on regulated persons
31 Allows them to give regulators enforcement, sanction and appeal functions
32 Makes provision about financial penalties in those regulations
33 Allows them to cover information sharing, guidance and other functions
34 Allows them to provide for regulators recovering costs
35 Adds supplementary powers and definitions
36 Allows a code of practice recommending compliance measures
37 Sets the procedure for issuing the code, including a draft before Parliament
38 Sets its legal effect: a failure to follow it is not of itself evidence of non-compliance, but it is admissible and may be taken into account
39 Sets how a code is withdrawn
40 Requires a report to Parliament on the legislation at least every five years
41 Sets general rules for regulations under this Part
42 Sets consultation and parliamentary procedure for regulations

Part 4: Directions for national security purposes

Section What it does
43 Lets the Secretary of State give directions to regulated persons where necessary and proportionate for national security
44 Gives directions priority over conflicting regulatory requirements, once the person is notified
45 Lets ministers direct regulators to monitor compliance
46 Sets powers to require information
47 Sets powers of inspection
48 Sets how notice of a suspected contravention is given
49 Sets maximum penalties, including £17 million, up to 10% of turnover if further regulations are in force, and daily amounts
50 Sets enforcement after representations
51 Sets how penalties are recovered across the UK
52 Applies enforcement to non-disclosure requirements
53 Lets ministers direct regulators in the interests of national security
54 Requires review of directions and allows variation or revocation
55 Requires directions to be laid before Parliament, unless contrary to national security
56 Covers information sharing
57 Sets how directions and notices are given
58 Defines terms

Part 5: General

Section What it does
59 Extends the Act to England and Wales, Scotland and Northern Ireland
60 Sets commencement: see when the Bill comes into force
61 Sets the short title

The schedules

Schedule 1 amends the NIS Regulations on enforcement and appeals, including inspection powers extended to RMSPs. Schedule 2 contains minor and consequential amendments to the NIS Regulations and other laws.

Sources

Frequently asked questions

HL Bill 32, the version brought from the Commons, has 61 sections and two schedules. Amendments in the Lords can add or renumber provisions, so check the final Act.

Part 2, because it amends the NIS Regulations 2018 and contains the scope, security, registration, incident reporting and penalty changes. Part 3 matters for future rules, and Part 4 matters if you could receive a national security direction.

No. It amends them and adds new powers. The NIS Regulations 2018 remain the base text for many duties.

No. It is a plain-English summary and leaves out detail. Rely on the final Act and take legal advice for decisions.

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