Your CSDDD resource hub
Make sense of the EU Corporate Sustainability Due Diligence Directive.
Plain-English answers, free tools, and updates you can trust, whether you're a large in-scope company or a supplier who just received a due-diligence questionnaire. We read the directive so you don't have to.
Find your way through corporate sustainability due diligence.
Independent · always updated · plain English · free
Confirmed timeline
Transposition into national law.
Member States must have the CSDDD written into their own laws by this date. The directive itself does not apply to companies yet.
Application: a single date for all in-scope companies.
From this date, in-scope companies must run the due-diligence obligations. The original phased 2027/2028/2029 waves were scrapped by Omnibus I.
These dates are set by Omnibus I (Directive (EU) 2026/470, in force 18 March 2026). See the full timeline, or check whether the directive reaches you directly or only through a customer.
Got a CSDDD due-diligence questionnaire from a customer and don't know what to send? Start here.
A big customer just sent you a "CSDDD" or "due-diligence" questionnaire asking about human rights, environment and your own suppliers, and you have no compliance team. You're not sure whether the directive even applies to you, what you actually have to answer, or whether the relationship is at risk.
Take a breath. Most companies are only caught indirectly, as a supplier to a large in-scope customer, not by the directive itself. Omnibus I even caps the information big firms can demand from smaller partners. We'll help you work out where you stand, what a proportionate answer looks like, and what good practice is. No jargon, no sales pitch.
Start here
Start where you are
Four routes through the directive, depending on what you need right now.
Free tools
Free tools, no email wall
Use them on the page. We'll only ask for your email if you want your result or a PDF sent to you.
Why use this hub
Why use this hub
Independent
We have no software to sell, no demo to book and no compliance platform to push. That means no pressure to "request a quote" at the bottom of every answer. We just explain the directive.
Always current
The CSDDD changed dramatically under Omnibus I (Directive (EU) 2026/470). We track the changes, and more guidance is still coming. Every page carries the sources we used and the date we last checked them.
Plain English, with free tools
A scope checker, a due-diligence questionnaire, a risk assessment, a glossary and a readiness checklist, written for people without a legal team. Terms are explained the first time we use them, then linked to the glossary.
The CSDDD Brief
We watch Brussels so you don't.
The CSDDD is still settling after Omnibus I, with more Commission guidance due by 2027. One email, plain English, tells you what changed, what it means for you, and what to do about it. So you can stop refreshing EUR-Lex and get back to your actual job.
- A regular issue rounding up what moved and what's coming.
- Breaking-change alerts the moment something material lands: new Commission guidance, a transposition update or a further amendment.
- Plain-English summaries with a link to the official source, every time.
The CSDDD Brief
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By the numbers
The CSDDD in a few numbers
The figures worth keeping in your head, all post-Omnibus I. Each one is set in law or in the official guidance we link from the pillar page.
The scope test for EU companies: more than 5,000 employees AND more than €1.5 billion worldwide net turnover. Non-EU companies are caught above €1.5bn EU turnover.
The application date: a single deadline for all in-scope companies to be running their due-diligence obligations.
The cap on fines for breaches: penalties must not exceed 3% of a company's net worldwide turnover.
The OECD/UNGP-aligned due-diligence cycle: embed, identify, prevent, remediate, engage, monitor.
The directive is built on the OECD Guidelines / OECD Due Diligence Guidance and the UN Guiding Principles on Business and Human Rights.
Stay ahead of the next CSDDD change.
Free, plain-English updates and tools. We watch Brussels so you don't.