1968—Subsec. (a). Pub. L. 90–446 substituted “operated, or managed for profit or nonprofit as a public market for livestock producers, feeders, market agencies, and buyers” for “or operated for compensation or profit as a public market”.

1958—Subsec. (a). Pub. L. 85–909 struck out “Said sections shall not apply to a stockyard of which the area normally available for handling livestock, exclusive of runs, alleys, or passage ways, is less than twenty thousand square feet.”

Pub. L. 85–909, § 2(2), Sept. 2, 1958, 72 Stat. 1750, provided in part: “That nothing herein [this section] shall be deemed a definition of the term ‘public stockyards’ as used in section 15(5) of the Interstate Commerce Act [former 49 U.S.C. 15(5)]”.