Standards and reporting
CSDDD
The CSDDD is a corporate due-diligence directive, so preparation starts with the amended legal route and the actions needed to address impacts rather than a sustainability-report template.
What does the CSDDD concern?
The directive addresses actual and potential adverse human-rights and environmental impacts through a due-diligence process rather than merely an annual account of policies Articles 1 and 5.
Module 01 / 04
Route
Identify the company and applicable scope provision.
Module 02 / 04
Impact
Identify the harm or potential harm being assessed.
Module 03 / 04
Response
Connect the assessment to appropriate action.
Module 04 / 04
Review
Track what changed and whether the response worked.
Read the detailed guidance and evidence
The Commission’s overview is useful orientation, but the consolidated directive and the adopted Omnibus amendment control the current legal reading Commission due-diligence overview Directive 2026/470.
The standards overview separates due diligence from reporting, while CSRD explained identifies the distinct sustainability-statement route.
Which scope facts need to be distinguished?
The amended scope has EU, third-country and group/franchise routes rather than a universal supplier-size test.
| Evidence question | Record to inspect | Decision supported |
|---|---|---|
| EU company | Employees and worldwide turnover under Article 2(1) | Whether the relevant cumulative conditions are met |
| Third-country company | Union turnover and the Article 2(2) reference year | Whether the separate non-EU route applies |
| Parent or franchise route | Group relationships and the relevant limb | Whether an alternative condition must be assessed |
| Persistence | The two relevant consecutive financial years | Whether scope entry or exit conditions are satisfied |
Read the detailed guidance and evidence
The principal EU limb requires more than 5,000 average employees and more than €1.5 billion net worldwide turnover, while the main third-country limb uses Union turnover without that employee test Article 2.
These are not the CSRD’s thresholds, so a CSRD scope conclusion cannot simply be copied into the due-diligence file.
Which implementation stage should a current preparation plan describe?
Adoption, national transposition and company application have separate roles, with an additional reporting timetable Article 37 Articles 4–6.
Module 01 / 04
Adopted text
Use the directive as amended rather than an earlier proposal.
Module 02 / 04
National law
Identify the relevant implementation route.
Module 03 / 04
Application
Record when the operative company measures apply.
Module 04 / 04
Reporting
Keep Article 16’s financial-year provision separate.
Read the detailed guidance and evidence
National measures are due by 26 July 2028 and apply from 26 July 2029, with Article 16 measures applying for financial years beginning on or after 1 January 2030 Article 37(1).
A UK supplier receiving a questionnaire now should distinguish the customer’s commercial request from a claim that every CSDDD obligation already applies to that supplier.
The CSRD Omnibus guide helps prevent a scope or reporting date from another part of the legislative package being reused here.
How should a supplier evidence request be framed?
Identify the purpose and missing information before sending the same questionnaire to every business partner.
| Evidence question | Record to inspect | Decision supported |
|---|---|---|
| Purpose | Impact or question the customer is investigating | Why the request is relevant |
| Existing information | What the customer can reasonably obtain elsewhere | Whether a further request is necessary |
| Partner size | The relevant Article 8(2a) assessment | How the information-request limitation is considered |
| Response | Evidence, limitation and responsible person | What the customer can reasonably infer |
Read the detailed guidance and evidence
Article 8(2a) limits requests to business partners with fewer than 5,000 employees where the necessary information cannot reasonably be obtained by other means Article 8(2a).
The CSRD cap and its voluntary-standard datapoints concern a different reporting purpose, so they should not be presented as the CSDDD questionnaire rule Commission cap explanation Regulation 2026/1560.
How does the amended identification process affect preparation?
The current text uses a scoping exercise followed by focused in-depth assessment rather than systematic entity-level investigation of every partner Article 8(2) Recital 39.
Module 01 / 04
Scoping
Use reasonably available information to identify general areas.
Module 02 / 04
Priority
Identify where impacts appear most likely and severe.
Module 03 / 04
Assessment
Investigate the relevant activities and evidence.
Module 04 / 04
Rationale
Retain why attention was focused there.
Read the detailed guidance and evidence
A single supplier risk score may help organise work without explaining why a particular activity or allegation needs investigation.
The OECD Guidelines and UN Guiding Principles provide recognised responsible-business context, but a voluntary framework description is not a substitute for the directive’s actual provisions OECD Guidelines UN Guiding Principles.
The double materiality guide serves a reporting assessment rather than automatically completing this due-diligence process.
How could a fictional buyer investigate a specific allegation?
Fictional case: Brackenwell Components receives credible concerns about recruitment fees at a supplier’s subcontracted facility.
| Evidence question | Record to inspect | Decision supported |
|---|---|---|
| General supplier score is low | The allegation concerns a specific activity | Retain the allegation rather than dismiss it through the average score |
| Supplier policy prohibits fees | Evidence of implementation remains uncertain | Investigate recruitment records and affected-worker accounts |
| Audit summary reports no issue | Its population and timing are unclear | Review what the audit actually covered |
| Management proposes closing the case | The underlying concern remains unresolved | Record the investigation and action still required |
Read the detailed guidance and evidence
Brackenwell’s evidence problem is a mismatch between a generic assurance and a specific affected-worker concern, not merely an empty questionnaire field.
The fictional case illustrates preparation choices without making a finding that any real company caused harm or owes compensation.
Does any supplier allegation mean the buyer must pay compensation?
The remediation provision distinguishes impacts caused or jointly caused by the company from those caused only by a business partner Article 12.
Module 01 / 04
Impact
Establish what actual adverse impact is supported.
Module 02 / 04
Connection
Investigate the company’s relationship to that impact.
Module 03 / 04
Response
Distinguish remediation from other due-diligence actions.
Module 04 / 04
Legal review
Keep liability conclusions separate from the preparation file.
Read the detailed guidance and evidence
Article 12 requires remediation where the company caused or jointly caused the actual impact, while partner-only impacts have a different treatment that can involve voluntary remediation or use of influence Article 12(1)–(2).
That distinction does not eliminate other due-diligence obligations, and a preparer should not use it to close an unresolved case without investigating the relevant connection.
The modern slavery statement guide addresses the separate UK account of steps taken rather than an equivalent remediation regime.
What makes an action record useful?
An editorial case record should show what the response tried to change and what evidence would demonstrate progress.
| Evidence question | Record to inspect | Decision supported |
|---|---|---|
| Action purpose | Specific concern or impact addressed | Whether the response relates to the actual issue |
| Responsible party | Decision owner and participating organisations | Who can implement or influence the response |
| Evidence of change | Records or affected-person feedback | Whether the response changed the situation |
| Unresolved limitation | Remaining concern and next review | Why the matter remains open or is closed |
Read the detailed guidance and evidence
A contractual assurance and a completed training session may be useful evidence without by themselves establishing that the adverse impact has ended.
The Home Office guidance similarly warns against relying on audits alone in the UK statement context, which is a useful evidence caution rather than a replacement CSDDD rule Practical guide, audits and inspections.
What must not be confused with CSDDD compliance?
Keep the sustainability statement, UK modern-slavery statement and due-diligence response as distinct outputs with their own legal bases.
Module 01 / 04
CSRD
A reporting route using ESRS content.
Module 02 / 04
CSDDD
An amended due-diligence directive and national measures.
Module 03 / 04
UK statement
An annual account under section 54 where applicable.
Module 04 / 04
Commercial request
A customer’s evidence requirement and contractual purpose.
Read the detailed guidance and evidence
Section 54 requires a statement for organisations meeting its test, with the £36 million threshold set in separate regulations, rather than making the CSDDD process a universal UK obligation Modern Slavery Act section 54 SI 2015/1833.
A buyer should therefore state which output a piece of supplier evidence supports instead of telling every small business that it must comply with every framework mentioned in the questionnaire.
Which older summaries need an explicit status correction?
Use a dated change record so a previous project requirement does not survive after the governing provision changes.
| Evidence question | Record to inspect | Decision supported |
|---|---|---|
| Former climate-plan duty | Article 22 deletion | Remove the claim that CSDDD still requires that plan |
| Earlier scope figures | Amended Article 2 | Reassess the actual route |
| Former phased application | Current Article 37 | Use the amended national and application stages |
| EU-wide liability claim | Amended Article 29 | Distinguish national-law liability and surviving safeguards |
Read the detailed guidance and evidence
Omnibus deleted Article 22 in full and removed the harmonised cause of action, so “softened transition-plan duty” and “automatic EU-wide civil claim” are not accurate summaries of the current text Article 4(16) and (20).
What would a useful original case register contain?
Design the register around a specific impact question and its resolution rather than a universal supplier pass/fail badge.
Module 01 / 04
Signal
Allegation, source and activity concerned.
Module 02 / 04
Investigation
Evidence, conflicts and assessment rationale.
Module 03 / 04
Action
Decision, owner and intended change.
Module 04 / 04
Review
Observed outcome and remaining uncertainty.
Read the detailed guidance and evidence
Brackenwell’s planned register keeps the original allegation, the audit-coverage limitation and the reason further inquiry remained necessary.
Access and personal-data handling need deliberate controls rather than copies of sensitive worker accounts distributed through every supplier workbook.
A software RFP can test whether an altered case decision retains earlier evidence and the reviewer’s rationale.
What should the programme sponsor accept?
A defensible preparation handover makes the scope, investigation and unresolved decisions explicit.
| Evidence question | Record to inspect | Decision supported |
|---|---|---|
| Legal route | Company, group and national implementation assessment | What is being prepared and why |
| Case evidence | Activities, sources and conflicts | What the assessment actually considered |
| Response decisions | Actions and their connection to the concern | What management decided to change |
| Monitoring | Results and outstanding review questions | What remains uncertain |
Read the detailed guidance and evidence
The CSRD consultancy guide helps define related reporting work, while a due-diligence engagement needs its own scope rather than a promise that statement drafting completes operational responsibilities.
The Commission overview should be monitored for owner guidance, but a planned guideline is not the same as an adopted change to the directive Commission due-diligence page.
What if contrary evidence arrives after management closes the case?
A closure decision should retain its evidential basis so new information can be assessed against the earlier conclusion.
Module 01 / 04
Signal
Record the new information and its source.
Module 02 / 04
Conflict
Identify what contradicts the previous finding.
Module 03 / 04
Response
Assign the further investigation or action.
Module 04 / 04
Review
Retain the revised conclusion and reasons.
Read the detailed guidance and evidence
Brackenwell receives a worker account that concerns a recruitment channel omitted from the audit population, after management has marked the supplier case complete.
The team should preserve the earlier decision while investigating the new scope issue rather than reject the information because the dashboard already shows a closed case.
This editorial test supports review of the evidence and effectiveness of measures without prescribing a universal case-closing score Articles 8 and 15.
How can the team prepare a reviewable evidence file?
This editorial workflow organises preparation without certifying compliance or replacing a statutory process.
- 101
Confirm scope
Assess entity, group and the relevant years. - 202
Record the legal stage
Separate adoption, implementation and application. - 303
Define the concern
Identify the impact question and affected activity. - 404
Review available information
Assess what is already reasonably available. - 505
Focus the inquiry
Investigate the relevant likely and severe impacts. - 606
Resolve conflicting evidence
Read source coverage and affected-person information. - 707
Decide the response
Record actions and any separate remediation assessment. - 808
Review effectiveness
Assess evidence of change and remaining concerns. - 909
Retain the handover
Keep the case, decisions and reporting links distinguishable.
Frequently asked
Questions people ask
Is CSDDD the same as CSRD?
No, CSDDD concerns due diligence while the CSRD route concerns sustainability reporting, with different scope and application provisions.
When does the amended CSDDD apply?
National measures apply from 26 July 2029, with Article 16 reporting measures for financial years beginning from 1 January 2030.
Does every UK supplier fall within CSDDD?
No, distinguish the third-country scope tests from a commercial evidence request received from an in-scope customer.
Does the directive still require a climate transition plan?
No, the Omnibus amendment deleted Article 22 rather than merely relaxing it.
Can the CSRD cap be applied to every due-diligence question?
No, distinguish the reporting cap from CSDDD’s own information-request provisions.
Does an allegation automatically establish buyer liability?
No, the actual impact, relationship, remediation provision and national-law liability basis need separate assessment.
Sources
Primary sources
Primary provisions and official owner guidance checked on 26 October 2026; historical and draft resources are labelled in the guide.
- EUR-LexCSDDD consolidated 18 March 2026
- EUR-LexDirective (EU) 2026/470: adopted amendments
- European CommissionCorporate sustainability due diligence
- European CommissionValue-chain-cap explanatory information
- EUR-LexVoluntary standard and CSRD value-chain cap
- OECDGuidelines for Multinational Enterprises on Responsible Business Conduct
- OHCHRGuiding Principles on Business and Human Rights
- UK legislationModern Slavery Act 2015, section 54
- UK legislationTransparency in Supply Chains Regulations 2015
- Home OfficeTransparency in supply chains: a practical guide