Article 12 4.

a reference to minimum technical requirements related to the assurance levels under Article 8;

a mapping of national assurance levels of notified electronic identification schemes to the assurance levels under Article 8;

a reference to minimum technical requirements for interoperability;

a reference to a minimum set of person identification data necessary to uniquely represent a natural or legal person, or a natural person representing another natural person or a legal person, which is available from electronic identification schemes;

rules of procedure;

arrangements for dispute resolution; and

common operational security standards.