Do internal auditors have to take a specific course to be trained to conduct internal audits as required by some requirement?? What is this requirement? Does the trainer of internal auditors have to meet some specific requirement(s)? Note: I realize that the trainer should be experienced in both the automotive standard and auditing as a basic requirement. Our auditors took an Exemplar Global lead auditor certified course (ISO 9001 with emphasis on TS16949) and the certification body auditor said the course was "invalid." I do not understand to what requirement this audit nonconformity was based. Can anyone provide some information here? Thanks!