1960—Subsec. (a). Pub. L. 86–507 inserted “or certified mail” after “registered mail”.

For transfer of functions of Securities and Exchange Commission, with certain exceptions, to Chairman of such Commission, see Reorg. Plan No. 10 of 1950, §§ 1, 2, eff. May 24, 1950, 15 F.R. 3175, 64 Stat. 1265, set out under section 78d of this title.