The GPVS is designed to be operated within existing quality management systems (often accredited such as ISO140001) which rely upon the concept of peer review/checking and sign-off. It works best if the SGPV has an intimate knowledge of both the project in question and the staff undertaking the work who typically will also be accredited TGPV under the GPVS.
The quality mark applies to the individual report being prepared (and the team preparing it). The SGPV has to consider the reliability of any data collected in vouching for the reasonableness of any conclusions drawn from that data. Any critical uncertainties have to be identified as part of the process.
