This indicator expressed as a URI indicates that it is ensured by the trust service provider and supervised by the Member State Supervisory Body that all Qualified Certificates issued under the service identified in "Service digital identity" and further identified by the filters information used to further identify under the "Sdi" identified trust service that precise set of Qualified Certificates for which this additional information is required with regards to the presence or absence of Qualified Signature or Seal Creation Device (QSCD) support ARE supported by a QSCD (i.e. that means that the private key associated with the public key in the certificate resides in a QSCD conformant with the applicable European legislation).

This value shall not be used if the service type is not

http://uri.etsi.org/TrstSvc/Svctype/CA/QC