Reporting to OACSIM

New OACSIM Military or Civilian Hire

Reporting to OACSIM for Your First Day of Duty?

All newly assigned Office of the Assistant Chief of Staff for Installation Management (OACSIM) military personnel must report to the OACSIM Management Support Division, Pentagon, Room 5C140, on their first duty day for in-processing instructions. Call 703-695-7127 for more information.

All newly assigned non-Army OACSIM civilian employees will report at 0800 to the Human Resources Management Directorate, 2530 Crystal Drive, Taylor Building, 8th floor, for initial processing. Any new OACSIM civilian employees reporting from another Army organization will report at 0830 to the OACSIM Management Support Division, Pentagon, Room 5C140 for in-processing. Call 703-695-7078 for more information.

If an escort is required for entrance to the Pentagon, the assigned sponsor, or designated representative, must provide the escort service. Please contact your sponsor directly to make arrangements.

If newly assigned military or civilian personnel have not been notified of their primary and/or alternate sponsor's name and phone number within five business days prior to their onboarding, please call (703) 695-7078 (civilian personnel) or 703-695-7127 (military personnel) for more information.

Contact Us


HQDA, DCS, G9, 600 Army Pentagon, Washington, D.C. 20210-0600

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