1997—
Pub. L. 105–34, title XI, § 1131(c)(6), title XIII, § 1309(b), Aug. 5, 1997,
111 Stat. 980, 1043, added items 684 and 685.
1976—
Pub. L. 94–455, title XXI, § 2131(e)(2), Oct. 4, 1976,
90 Stat. 1924, substituted “Use of trust as an exchange fund” for “Applicability of provisions” in item 683.