Norris-LaGuardia Act

Norris-LaGuardia Act, U.S. law (1932) that outlawed “yellow-dog” contracts in which workers promised not to join or encourage others to join labor unions. The act made such contracts unenforceable in federal court. One of the first U.S. laws protecting the right to join and organize unions, it was sponsored by Republicans Sen. George W. Norris (Nebr.) and Rep. Fiorello H. LaGuardia (N.Y.).