If you are on active duty and expect to be discharged or released from active duty service within 120 days, you may submit a Certificate of Release or Discharge from Active Duty from the appropriate Branch Personnel Office containing the following information: The military service dates including the expected discharge or release date; and. Experience in the use of schematic diagrams, a variety of test equipment, and the application of appropriate electronic formulas involved in such duties as testing, troubleshooting, modifying, designing, calibrating, installing, maintaining, repairing, constructing, developing, and instructing on medical electronic equipment, or similar functions.