1969—Pub. L. 91–172 redesignated existing provisions as subsec. (a) and added subsec. (b).
Statutory Notes and Related Subsidiaries
Effective Date of 1969 Amendment
Amendment by Pub. L. 91–172 applicable with respect to sales made after Dec. 19, 1969, see section 201(g)(6) of Pub. L. 91–172, set out as a note under section 170 of this title.