EU Greenwashing Rules Start September 27: How to Check Labels and Guarantees

EU greenwashing rules begin applying on September 27, 2026, tightening the conditions for environmental marketing and sustainability labels. For shoppers, the useful question is not whether a package looks green, but exactly what is being claimed, what evidence supports it and whether the promise covers the product or just one part.

The European Commission's implementation page identifies September 27 as the application date for Directive (EU) 2024/825. It was adopted on February 28, 2024; the deadline for national transposition was March 27, 2026. Those are different milestones, not three competing launch dates.

Cover photograph: the European Commission's Berlaymont headquarters in Brussels, August 6, 2023. Yair Haklai, Wikimedia Commons, CC BY-SA 4.0. Original file reproduced without editing; contextual image, not a photograph of today's rollout.

Four checks before paying for a green promise

The following shopping checklist translates the prohibitions in the directive's annex into questions a reader can use at the shelf or checkout. It is not a ruling on any individual brand.

1. Read beyond the adjective. Generic environmental claims require recognised excellent environmental performance relevant to that claim. An attractive green design is not the evidence.
2. Find the label's issuer. Sustainability labels must be based on a certification scheme or established by a public authority. A company's own reassuring badge is not enough.
3. Separate reductions from offsets. Claims that a product has a neutral, reduced or positive greenhouse-gas impact cannot be based on emissions offsetting.
4. Check the boundary. A claim about the whole product or business must not describe only one aspect or activity. Better packaging and a better product are not interchangeable claims.

The Commission's September 2026 questions and answers makes an important distinction: these rules address how goods, services and companies are presented to consumers, rather than prescribing their intrinsic composition. The underlying unfair-commercial-practices framework is business-to-consumer; it is not a blanket rulebook for every business-to-business exchange.

That distinction helps explain why a truthful technical detail can still leave a misleading overall impression. The same guidance says imagery and presentation matter. Reading the small print should clarify a claim, not reverse the impression created by the front of the package.

A guarantee label is not an environmental score

The rollout also brings information about guarantees. The Commission distinguishes the mandatory reminder of legal rights from the new GARAN label for qualifying voluntary durability guarantees. Here is the practical difference:

Why older packaging may remain on sale

The application date does not mean every older box must be destroyed. In its old-stock guidance, the Commission describes a June 2026 common understanding among national consumer-protection authorities. It allows a phased approach where genuine transitional difficulties exist, while expecting traders to act promptly and in good faith.

Packaging cycles, stock volumes, previous orders and the feasibility of corrections may matter case by case. Updating online claims, correcting advertisements or providing corrective information at the point of sale can be proportionate responses. Authorities may avoid destruction or recalls that create excessive cost or unnecessary environmental harm.

This is not a universal extension of the application date or permission to keep making unchanged claims indefinitely. For businesses, the sensible operational distinction is between an old printed package that takes time to replace and a current online claim that can be corrected now.

ARD's reporting from Brussels shows why that distinction is contested: retailers described uncertainty and concerns about existing stock, while consumer representatives stressed that the legislation had been known since 2024. This guide explains the EU framework, not every country's implementing law or the outcome of a particular complaint.

For background, watch the European Parliament's pre-adoption explainer. It explains the consumer problem; its forward-looking references belong to 2023, not today's legal timetable.

Readers tracking the wider regulatory context can continue through PanoramaDigest's European Union policy hub. For this particular purchase decision, keep three things separate: evidence about environmental performance, the credibility of a certification label and the length of a guarantee. One does not automatically prove the others.