Q26: If the certificate has already expired, can the period during which the certification body may restore certification (according to ISO/IEC 17021-1 § be extended by a further 6 months (to a maximum of 12 months from certificate expiry) provided that the outstanding recertification activities are completed?

A26: Yes. Otherwise at least a stage 2 shall be conducted. (See Q8 for details of certificate validity and possible modifications to subsequent surveillance activities).