The EU rules forcing luxury to prove its sustainability claims

CSDDD: due diligence becomes a legal duty, not a PR choice

CSDDD (Corporate Sustainability Due Diligence Directive), adopted by the EU in 2024, requires large companies operating in the EU to identify, prevent, and address human rights and environmental harms across their own operations, subsidiaries, and value chains, including suppliers outside the EU.

Key practical points:

• Who it covers: EU companies above defined employee and turnover thresholds, and non-EU companies generating significant turnover within the EU. Large luxury groups (think multi-brand conglomerates with EU revenue in the billions) fall squarely inside scope; smaller maisons may not, at least initially.
• What it requires: a documented due diligence process covering raw material sourcing (leather tanneries, gold and gemstone mining, cotton and silk farms), supplier audits, a grievance mechanism, and a public reporting obligation.
• Value chain reach: this is the structural shift. A brand is now expected to look upstream past its tier-1 supplier (the finished-goods workshop) into tier-2 and tier-3 (tanneries, mines, mills), where most environmental and labor risk actually sits.
• Enforcement: member states designate supervisory authorities with power to investigate and fine. Civil liability provisions also mean companies can be sued in EU courts for harms linked to inadequate due diligence.
• Phase-in: obligations apply on a staggered timeline through the late 2020s, with the largest companies first. Professionals should treat 2027 to 2029 as the critical compliance window, and confirm current dates directly with the European Commission's CSDDD page since transposition timing can shift.

Concrete luxury example: a European leather goods house sourcing calfskin from a supplier network in South America must now be able to show it assessed deforestation risk and labor conditions at the tannery and farm level, not just at its Italian finishing workshop. "We audited our direct supplier" is no longer sufficient.

Green Claims: killing the vague label

Where CSDDD governs supply chain conduct, the EU's green claims framework governs what brands are allowed to *say* about it.

Empowering Consumers Directive (in force, transposition ongoing across member states) already bans generic environmental claims, like "eco-friendly," "green," or "sustainable," unless the company can back the claim with recognized certification or robust, publicly available evidence. It also bans claims based purely on carbon offsetting (buying credits) without disclosing the underlying environmental impact of the product itself.

The proposed Green Claims Directive goes further, requiring:

• Prior substantiation: claims must be verified by an independent, accredited checker *before* publication, not after a complaint.
• Specificity: "made with recycled materials" must state the percentage and which materials; "reduced carbon footprint" must state reduced compared to what baseline.
• Comparative claims (e.g., "more sustainable than our previous collection") need a like-for-like methodology, not marketing shorthand.

Note for 2026: the Green Claims Directive's final form has faced negotiation delays in the EU legislative process, so professionals should verify current status via EUR-Lex rather than assume final text, but the direction of travel (mandatory pre-verification, banned vague terms) is settled policy intent even amid drafting adjustments.

Concrete luxury example: a fashion house's ad claiming a handbag is "made from eco-friendly leather" would need to specify, for instance, the tanning process used, its environmental certification (such as Leather Working Group ratings), and comparative impact data, published where consumers can check it. Absent that, national consumer authorities (in France, the DGCCRF; in Italy, the AGCM) can order the ad withdrawn and impose fines tied to turnover.

Who enforces this, in practice

Enforcement is decentralized. There is no single "EU sustainability police." Instead:

• National consumer protection authorities (DGCCRF in France, AGCM in Italy, Bundeskartellamt-adjacent bodies in Germany) enforce green claims rules and can act on complaints from NGOs, competitors, or consumers.
• National regulators designated under CSDDD handle due diligence enforcement and can levy fines calculated as a percentage of global net turnover (the directive sets this at a minimum threshold member states must meet, commonly referenced around 5%, though professionals should confirm the transposed figure in the relevant jurisdiction).
• Civil courts across the EU can hear liability claims from affected parties (workers, communities) against companies for due diligence failures.
• The European Commission oversees consistency and can refer persistent non-compliance to the Court of Justice of the EU (CJEU).

This matters for luxury groups with EU headquarters (France and Italy host most major groups) because they face regulatory attention from multiple national bodies simultaneously, not one central regulator.

What compliance actually looks like on the ground

For a luxury brand's legal and sustainability teams, 2026 priorities typically include:

1. Supply chain mapping beyond tier-1 suppliers, with documentation retained for tanneries, mills, mines, and farms.

2. Claim audit of all existing marketing language, website copy, and packaging for banned generic terms lacking substantiation.

3. Third-party verification contracts with accredited bodies before any new sustainability claim is published.

4. Grievance mechanisms accessible to workers and communities in the supply chain, a CSDDD requirement often outsourced to specialized platforms.

5. Board-level reporting lines, since CSDDD due diligence is explicitly framed as a governance duty, not just a marketing or CSR function.

The practical effect: sustainability claims that once lived in a brand's marketing department now require sign-off from legal, compliance, and often an external auditor before a single ad goes live.

🎬 [VIDEO: "The EU's Green Claims Directive Explained" - youtube.com - search for recent explainer content from European Commission or EU policy channels covering green claims and greenwashing rules, to see the regulatory logic illustrated with real ad examples]

Key Takeaways

• CSDDD requires large companies (including major luxury groups operating in the EU) to conduct human rights and environmental due diligence across their full value chain, not just direct suppliers, with civil liability and turnover-based fines for failures.
• Green claims rules (Empowering Consumers Directive, in force, plus the proposed Green Claims Directive) ban vague terms like "eco-friendly" or "sustainable" unless independently substantiated with specific, verifiable evidence, published before the claim is made public.
• Enforcement is national and decentralized: authorities like France's DGCCRF and Italy's AGCM can order ad withdrawals and impose turnover-linked fines; CJEU oversight ensures consistency across member states.
• Tier-2 and tier-3 suppliers (tanneries, mines, mills) are now the real compliance frontier, since most environmental and labor risk in luxury supply chains sits upstream of the visible workshop.
• Marketing and legal functions must merge on sustainability claims: any "green" language in luxury advertising now needs documented, pre-verified evidence, or it becomes a direct source of regulatory and reputational risk.