CFR›Title 12›Chapter II›12 CFR Part 251 Citation12 CFR Part 251ContainsSections § 251.1–§ 251.6CorpusDaily eCFRDisplayed edition2026-09-23Last updated2026-09-23 PART 251—CONCENTRATION LIMIT (REGULATION XX) Sections § 251.1 § 251.1 Authority, purpose, and other authorities. § 251.2 § 251.2 Definitions. § 251.3 § 251.3 Concentration limit. § 251.4 § 251.4 Exceptions to the concentration limit. § 251.5 § 251.5 No evasion. § 251.6 § 251.6 Reporting requirements. Authority12 U.S.C. 1818, 1844(b), 1852, 3101 et seq.Source79 FR 68104, Nov. 14, 2014, unless otherwise noted.