CFR›Title 5›Chapter XIV›Part 2421›5 CFR 2421.23 Citation5 CFR 2421.23CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 § 2421.23 xxxLink to an amendment published at 91 FR 13941, Mar. 24, 2026. Previous 2421.22 § 2421.22 Determinative challenged ballots.