Article Title: Re-Depositing Retirement Contributions and Your Federal Annuity
Snippet of Article: "...This article is for CSRS employees and the few (very few) FERS employees (often known as FERS transferees) who had withdrawn contributions from CSRS and not re-deposited them when they returned to federal service as a FERS employee, or elected to transfer from CSRS to FERS during one of the two open seasons...."
Source: www.fedsmith.com