1970—Pub. L. 91–579 substituted “promulgate rules and regulations requiring dealers, exhibitors, research facilities, and operators of auction sales subject to section 2142 of this title” for “issue rules and regulations requiring licensed dealers and research facilities”.

Amendment by Pub. L. 91–579 effective 30 days after Dec. 24, 1970, see section 23 of Pub. L. 91–579, set out as a note under section 2131 of this title.