CFR›Title 17›Chapter IV›Part 450 ContainsSections 450.1–450.5CorpusDaily eCFRDisplayed edition2026-05-07Last updated2026-05-07 PART 450—CUSTODIAL HOLDINGS OF GOVERNMENT SECURITIES BY DEPOSITORY INSTITUTIONS Sections 450.1 § 450.1 Scope of regulations; office responsible. 450.2 § 450.2 Definitions. 450.3 § 450.3 Exemption for holdings subject to fiduciary standards. 450.4 § 450.4 Custodial holdings of government securities. 450.5 § 450.5 Effective date. AuthoritySec. 201, Pub. L. 99-571, 100 Stat. 3222-23 (31 U.S.C. 3121, 9110); Sec. 101, Pub. L. 99-571, 100 Stat. 3208 (15 U.S.C. 78o-5(b)(1)(A), (b)(4), (b)(5)(B)).Source52 FR 27957, July 24, 1987, unless otherwise noted. Previous 449 Part 449—Forms, Section 15C of the Securities Exchange Act of 1934