1970—
Pub. L. 91–579 added licensed exhibitors and operators of auction sales subject to section
2142 of this title to the enumeration of persons from whom research facilities may purchase dogs or cats.
Amendment by
Pub. L. 91–579 effective one year after Dec. 24, 1970, see section 23 of
Pub. L. 91–579, set out as a note under section
2131 of this title.