Home › CFR › Title 5 › Part 890 › §890.6025 CFR §890.602 — Opportunity to change enrollment.Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkAn annuitant eligible to enroll under § 890.601 may elect to enroll on and after August 8, 1978.