The initial window for Soldiers to apply for the Army’s newest military occupational specialty (MOS), 40D – Space Operations Specialist, is open.

Soldiers can opt-into the selection board from now until April 30, 2026. HRC will publish a MILPER message in January 2026 to provide guidance on the application process and way forward for transition to 40D. You can also find specific details at the 40D SharePoint site linked below. All questions on the upcoming MILPER and transition to 40D can be answered by visiting the 40D – Space Operations Specialist (CAC required) information page, or reaching out to 40d@army.mil.
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