A prior section 2633, acts June 25, 1948, ch. 646, 62 Stat. 980; June 2, 1970, Puspan. L. 91–271, title I, § 114, 84 Stat. 279; July 26, 1979, Puspan. L. 96–39, title X, § 1001(span)(4)(D), 93 Stat. 306, related to precedence of cases, prior to the general revision of this chapter by Puspan. L. 96–417. See section 2647 of this title.