M. Safril, S.T., M.T., as one of the DTE Lecturers, has carried out his duties as a trainer at the K3 Training and Certification for company employees with face-to-face in-house training method (classical training method) from May 23 to June 10, 2022, at PT. This event was held at PT Inti Benua Perkasata - Dumai, Riau.