28 U.S. Code § 43. Creation and composition of courts
The provision in section 212 of title 28, U.S.C., 1940 ed., for a three-judge court of appeals was permissive and did not limit the power of the court to sit in banc. Thus, subsection (b) reflects present status of law, namely, that court is composed of not only circuit judges of the circuit in active service, of whom there may be more than three, but the circuit justice or justices and judges who may be assigned or designated to the court. (See Textile Mills Securities Corporation v. Commissioner of Internal Revenue, 1942, 62 S.Ct. 272, 314 U.S. 326, 86 L.Ed. 249 and Reviser’s Notes under section 46 of this title.)
1963—Subsec. (b). Pub. L. 88–176 inserted “regular” before “active service”.
Act June 25, 1948, ch. 646, § 2(b), 62 Stat. 985, provided in part that each circuit court of appeals should, after Sept. 1, 1948, be known as a United States Court of Appeals, but that the enactment of act June 25, 1948 should in no way entail any loss of rights, interruption of jurisdiction, or prejudice to matters pending in any such courts on Sept. 1, 1948.