The European Data Protection Board (EDPB) has published the draft (“public consultation version”) of the “Guidelines 1/2018 on certification and identifying certification criteria in accordance with Articles 42 and 43 of the Regulation 2016/679“: GDPR Guidelines
We are still far from having the certification criteria with regard to the GDPR. These are the criteria for evaluating the certification criteria.
In short, they are meta-criteria.