Keeping the credentials you worked hard for is just as important as earning them. To ensure you stay on top of the latest advances, and maintain a strong competitive edge, you must recertify every three years to maintain your Certified Manufacturing Technology Sales Engineer (CMTSE). First Recertification – $150 additional 3 years once course is completed (years 4-6) Second Recertification – $150 additional 3 years once course is completed (years 7-9) If you have any questions, please email us or call 800.733.4763 or 313.425.3000.