Education: Undergraduate and Graduate Education: Major study -- in a safety or occupational health fields (safety, occupational health, industrial hygiene), OR degree in other related fields that included or was supplemented by at least 24 semester hours of study from among the following (or closely related) disciplines: safety, occupational health, industrial hygiene, occupational medicine, toxicology, public health, mathematics, physics, chemistry, biological sciences, engineering, and industrial psychology. 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.