1976—Pub. L. 94–279 substituted “in commerce” for “affecting commerce” in two places.

1970—Pub. L. 91–579 inserted references to exhibitors, offers to sell, and offers to transport, and substituted references to animals for references to dogs and 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.