Describes 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, TS 102 640-2 and TS 102 640-3; and - Advanced Conformance Profile that includes a set of voluntary additional requirements to the Basic Conformance Profile for enhanced security and advanced evidential services.