US lawFederal (United States)RegulationsTitle 5 CFR — Administrative PersonnelChapter I — OFFICE OF PERSONNEL MANAGEMENTPart 890 — FEDERAL EMPLOYEES HEALTH BENEFITS PROGRAMSubpart F — Transfers From Retired Federal Employees Health Benefits Program890.6035 C.F.R. § 890.603Effective date.Last amended: 2017Year: 2026Length: 46 wordsOfficial source Cite as 5 C.F.R. § 890.603 (2026)The effective date of an enrollment under § 890.602 is the first day of the first pay period after the election is received by the retirement system, but not earlier than January 1, 1979. [43 FR 35018, Aug. 8, 1978; 43 FR 38569, Aug. 29, 1978]Cross-references to the CFR890.602Previous5 C.F.R. § 890.602Next5 C.F.R. § 890.605