At a workshop on quality labels, Haitze Siemers, European Commission, Deputy Head of Unit, DG SANCO held a talk with the title:
Trustmarks for e-commerce - ensuring consumer confidence – Proposal for a Commission Recommendation
It turns out that the Commission may be recommending common guidelines for trustmarks. If these recommendations are not sufficiently followed up by market players, a directive may follow. But then again, let's first await the recommendation.