From USAJOBS Help
A temporary appointment is an appointment lasting one year or less, with a specific expiration date. An agency may make a temporary appointment to:
- fill a short-term position that is not expected to last more than one year; or,
- meet an employment need that is scheduled to be terminated within one or two years for reasons such as reorganization, abolishment, or the completion of a specific project or peak workload; or,
- fill positions that involve intermittent (irregular) or seasonal (recurring annually) work schedules.
A temporary employee's appointment may be terminated at any time and the employee is not eligible for promotion, reassignment, or transfer to other jobs.