Sorry if i didnt explain myself.
When he first applies, a potential QS needs to have certain qualifications before the application is taken any further. Once this criterior is acheived then a visit is arranged and the inspecting engineer assesses not only a number of jobs but more importantly the technical abilities of the applicant. This involves assessing his/ her work and conseqently his/ her competance at the work, and his/ her competence in testing and understanding of the regs.
This is not a one off as it happens every year that the QS is registered with the relevant body.
Therefore by definition, the QS is constantly assessed on his technical ability and therefore is in no need of the one off AM1 or AM2 or NVQ.
Sorry if i didnt make that clearer.