20 Mar 2018
- YSC：Potomac Service Center.
- EAC：Vermont Service Center;
- VSC：Vermont Service Center;
- WAC：California Service Center;
- CSC：California Service Center;
- LIN：Nebraska Service Center;
- NSC： Nebraska Service Center;
- SRC：Texas Service Center;
- TSC：Texas Service Center;
- MSC：National Benefits Center;
- NBC：National Benefits Center;
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