As a NASA Excepted (NEX) employee, you are, with rare exceptions, serving on a time limited appointment. This means that your civil service appointment continues until a date that is specified in your appointment and in your offer letter. Typically, NEX appointments exceed one year.

Your appointment expiration date is indicated on your notice of personnel action that documents your appointment.

And NEX appointment does not confer competitive status; you do not aquire entitlement to placement in a competitive service position as a result of this appointment. For additional information, see the NASA Desk Guide on NASA Excepted (NEX) Employment.

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