5 C.F.R. § 842.903 Conditions for coverage in primary positions.
Title 5 - Administrative Personnel
(a) An employee's service in a position that has been determined by the Secretary of the Department of Energy to be a primary nuclear materials courier position is covered under the provisions of 5 U.S.C. 8412(d). (b) An employee who is not in a primary position, nor covered while in a secondary position, and who is detailed or temporarily promoted to a primary position is not covered under the provisions of 5 U.S.C. 8412(d).
Title 5: Administrative Personnel
PART 842—FEDERAL EMPLOYEES RETIREMENT SYSTEM—BASIC ANNUITY
Subpart I—Nuclear Materials Couriers
§ 842.903 Conditions for coverage in primary positions.

