The Greenwashing Net Just Got Wider, and It Reaches Smaller Suppliers Too
Updated August 2026
A retailer can now be liable for a supplier's claim
In 2026, the UK's Competition and Markets Authority issued guidance clarifying something many businesses had assumed was someone else's problem: a retailer can be held responsible for a misleading environmental claim made by a manufacturer, simply by stocking the product. The regulator's language was direct. A business may be treated as repeating an environmental claim where it stocks a product carrying one, whether or not it wrote the claim itself.
What retailers are starting to ask for
The practical effect moves downstream fast. Retailers who can be held liable for a supplier's unsubstantiated claim have a clear incentive to stop carrying products they cannot verify. The guidance specifically points suppliers toward furnishing verification records, testing documentation, and independent assessments, not as a courtesy, but as the price of keeping the account.
This is not only a UK story
Around the same period, the European Securities and Markets Authority recommended that listed small and medium enterprises reporting under CSRD be required to include a concise account of their material positive sustainability impacts, alongside voluntary aggregate-level disclosure of opportunities, specifically to close a gap where a company could publicize a sustainability achievement without any obligation to back it up in its formal reporting. The proposal is a recommendation to EFRAG in response to a consultation, not an adopted rule, and it reaches a narrower group than the UK guidance does. But the direction across jurisdictions is consistent: the businesses making a claim, and increasingly the businesses simply carrying that claim to market, are expected to be able to prove it on request.
What this means for a smaller supplier
A claim without a document behind it is no longer just a marketing risk. It is becoming a trading risk, the kind of gap that shows up in a vendor review or a renewal conversation and quietly ends a relationship rather than triggering a fine. The fix is not to make fewer claims. It is to make sure every claim made can be handed over as a document the moment someone asks.