More Information Personnelist Staffing: SF-50 Codes for Firefighters and Law Enforcement Officers

Code	Name	Definition
6	CSRS-Spec	Firefighter and Law Enforcement Office (FF/LEO) in an approved position covered for special retirement.
E	FICA & CSRS-Spec (Offset) CSRS Offset Special (FF/LEO)	Employees approved for special coverage and are vested (at least 5 years of civilian service) in CSRS, but because of a break in service of over 365 days and returning to Federal civilian service 1/1/84 or after, are covered by Social Security and the CSRS.
M	FERS & FICA-Spec	Employees who are in an approved FF/LEO position and were first hired on or after 1/1/84.

PLEASE NOTE: If block 24 on your SF 50, “Tenure,” is “1,” you are on a permanent position and subject to a retirement system. If the tenure indicates “0,” generally, you are on a temporary appointment and not subject to a retirement system, but you are covered by Social Security (FICA), retirement code 2.

Code	Name	Definition
1	CSRS	Civil Service Retirement System - Employees hired prior to 1984.
2	FICA	You are covered by Federal Insurance Contributions Act - Social Security Only. You are not covered by a retirement system for your current position.
C	CSRS Offset	Employees vested in CSRS who had over a 365 day break in service and return 1/1/84 or after are covered by CSRS and FICA.
K	FERS (Federal Employees Retirement System)	Employees first hired on or after 1/1/84 and covered by FERS and FICA. Employees who elected to transfer to FERS either in an Open Season and or/after returning from a break in service.
L	FERS Special for ATC	Employees who are in an approved air traffic controller position and were first hired on or after 1/1/84.
N	FERS Special for Reserve Technician	Employees who occupy a technician position and were first hired on or after 1/1/84.
5	NAF Coverage	Non-appropriated Fund retirement coverage which you elected when moving from a NAF position to an appropriated fund position.