Trainer Consultant Management Quality and Food Safety

Are all internal and external trainings suppose to be from an accredited trainer? Does a Train the Trainer certificate expire? How to become Food Safety Trainer? Can SQF Practitioner/Trainer do Internal Audit ? Daily cost of an HACCP Trainer IRCA Approved Trainer Does a person approving an SOP need to be then certified as a trainer? New Member - Food Safety & HACCP trainer Ireland Train-the-Trainer Does a trainer of internal auditors need formal training?