The present document specifies two levels of conformance requirements: ? Basic Conformance Profile that indicates the minimum set of mandatory requirements that are to be met by any REM-MD that claims to be conformant with TS 102 640-1 [1]@ TS 102 640-2 [2] and TS 102 640-3 [3]; and ? Advanced Conformance Profile that includes a set of voluntary additional requirements to the Basic Conformance Profile for enhanced security and advanced evidential services. It should be emphasize that an organization claiming compliance with TS 102 640-1 [1]@ TS 102 640-2 [2] and TS 102 640-3 [3] is only expected to fully comply with the mandatory requirements contained in the Basic Conformance Profile.