Air Force Specialty Code

A letter prefix or suffix may be used with an AFSC when more specific identification of position requirements and individual qualifications is necessary.

Using the above example, the AFSC X1N371E would refer to a Germanic Cryptologic Linguist who is aircrew qualified and specializes in Afrikaans.

The Duty AFSC (DAFSC) reflects the actual manpower position the Airman is assigned to.

The Control AFSC (CAFSC) is a management tool to make assignments, assist in determining training requirements, and consider individuals for promotion.

The Air Force Enlisted Classification Directory (AFECD) and Air Force Officer Classification Directory (AFOCD) Section III contains the complete list of authorized SEIs and includes designation criteria and authorized AFSC combinations.