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: Examples of qualifying specialized experience include technical work in: drafting, surveying construction estimating, physical science, mathematics, aerospace, architecture, chemicals, electrical or mechanical systems, mining, petroleum, or nuclear systems.