Key Technical Personnel (KTP)

If the Key Technical Personnel are authorised to approve the validity of a test measurement, then this is equivalent to a signatory as they are “signing off” a batch of results for release. The same procedure can be used, just adjust the wording. In all cases the toolkit template should be customised to represent your specific situation and process. If there are different responsibilities between the KTPs, just table them.
This article may be of assistance - 8 steps to manage ISO 17025 competence of personnel at https://advisera.com/17025academy/blog/2021/05/26/how-to-manage-competence-in-a-laboratory-according-to-iso-17025/

If the Key Technical Personnel are authorised to approve the validity of a test measurement, then this is equivalent to a signatory as they are “signing off” a batch of results for release. The same procedure can be used, just adjust the wording. In all cases the toolkit template should be customised to represent your specific situation and process. If there are different responsibilities between the KTPs, just table them.
This article may be of assistance - 8 steps to manage ISO 17025 competence of personnel at https://advisera.com/17025academy/blog/2021/05/26/how-to-manage-competence-in-a-laboratory-according-to-iso-17025/