5 C.F.R. § 359.701
This subpart covers career appointees, other than reemployed annuitants, who are removed from the SES under any of the following conditions:
(a) Removal during the probationary period under subpart C of this part or under subpart D of this part for other than misconduct, neglect of duty, malfeasance, or other disciplinary reasons under § 359.403, § 359.404, or part 752, subpart F, of this chapter, if at the time of appointment to the SES the individual held a career or career-conditional appointment or an appointment of equivalent tenure, as determined by OPM. An appointment of equivalent tenure is considered to be an appointment in the excepted service other than an appointment—
(b) Removal as the result of:
[54 FR 18876, May 3, 1989, as amended at 56 FR 172, Jan. 3, 1991; 57 FR 10125, Mar. 24, 1992]