More than teams expect: syllabi, competency matrices, sign-off sheets, assessment results, mentor logs, and internal registers of who is authorised to perform which tasks. Add the work products themselves and supervisor statements. Together these show a path from training to responsibility, which is what the account needs.
Ask training and operations separately
Training records and operational records usually sit with different teams and different systems, and each will assume the other holds the useful material. Request from both, and specify dates rather than asking generally. Where an internal authorisation register exists, it is often the single most useful document, because it shows exactly what the applicant was permitted to do and from which date.
Request from training and operations separately, with specific dates rather than a general enquiry, because each team will assume the other holds the useful material. Between them they generate more than most people expect: syllabi, competency matrices, sign-off sheets, assessment results, mentor logs, and internal registers of who is authorised to perform which tasks. Add the work products themselves and statements from supervisors.
Where an internal authorisation register exists it is often the single most useful document in the file, since it shows exactly what the applicant was permitted to do and from which date. Keep every request logged with dates sent and received.