§ 3949. Limited appointments
(a)
A limited appointment in the Service, including an appointment of an individual who is an employee of an agency, may not exceed 5 years in duration and, except as provided in subsection (b) of this section, may not be extended or renewed. A limited appointment in the Service which is limited by its terms to a period of one year or less is a temporary appointment.
(b)
A limited appointment may be extended for continued service—
(3)
as a career candidate, if continued service is determined appropriate to remedy a matter that would be cognizable as a grievance under subchapter XI of this chapter;