Section 842.806 - Mandatory separation(a) The mandatory separation provisions of 5 U.S.C. 8425 apply to all law enforcement officers and firefighters, including those in secondary positions, and air traffic controllers, with the exception of a civilian employee of the Department of Transportation or the Department of Defense who is the immediate supervisor of a person described under 5 U.S.C. 2109(1)(B) (i.e., a second-level supervisor). A mandatory separation under 5 U.S.C. 8425 is not an adverse action under part 752 of this chapter or a removal action under part 359 of this chapter.(b) Exemptions from mandatory separation are subject to the conditions set forth under 5 U.S.C. 8425 . An exemption may be granted at the sole discretion of the head of the employing agency or by the President in accordance with 5 U.S.C. 8425(c) .(c) In the event that an employee is separated mandatorily under 5 U.S.C. 8425 , or is separated for optional retirement under 5 U.S.C. 8412(d) or (e) , and OPM finds that all or part of the minimum service required for entitlement to immediate annuity was in a position that did not meet the requirements of a primary or secondary position and the conditions set forth in this subpart or, if applicable, in part 831 of this chapter, such separation will be considered erroneous.52 FR 2069, Jan. 16, 1987, as amended at 70 FR 32710, June 6, 2005