The Technical Committee for Quality (TC-Q) is the EURAMET operational instrument to share and develop knowledge on ISO/IEC 17025 and on its implementation in the National Metrology Institutes (NMIs). It has no formal auditing or judgement authority, but by asking how an NMI's QS is implemented, and by offering feedback on best practice, this TC has become the EURAMET way of doing QS review by peers. TC-Q was established by the EUROMET General Assembly in May 2005, in continuation of the activities of the previous EUROMET Quality System Forum (QS-Forum).