Training current, and in the right modules
The certificate is read before the study is — CITI or whatever ethics training the university's current handbook names. Two measurements: is it current on the day the file is read, and is it the module set required for your role and your design — human-subjects, social-behavioral, whichever applies. A lapsed certificate, or the wrong module set, stops the review at the cover sheet, before a single idea of yours has been considered.