12 CFR 221.1 : Banks And Banking (§ 1.1 To Parts 1816-1899) — (§ 220.1 To Appendix F To Part 229) — Federal Reserve System (Continued) (§ 220.1 To Appendix F To Part 229) — Board Of Governors Of The Federal Reserve System (Continued) (§ 220.1 To Appendix F To Part 229) — Credit By Banks And Persons Other Than Brokers Or Dealers For The Purpose Of Purchasing Or Carrying Margin Stock (Regulation U) (§ 221.1 To § 221.125) — Authority, purpose, and scope.