CFR›Title 5›Chapter I›Part 839›Subpart F›Subject Group General Provisions ContainsSections 839.601–839.604CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Sections 839.601 § 839.601 How do I make an election? 839.602 § 839.602 What if I don't make an election? 839.603 § 839.603 Can I later change my election? 839.604 § 839.604 When is my election effective? Previous FERS Elections FERS Elections Next Time Limits Time Limits