Taft–Hartley Act
act regulating labor unions in the USA

The Labor Management Relations Act, 1947, better known as the Taft–Hartley Act, is a United States federal law that restricts the activities and power of labor unions. It was enacted by the 80th United States Congress over the veto of President Harry S. Truman, becoming law on June 23, 1947.
The Taft–Hartley Act was introduced in the aftermath of a major strike wave in 1945 and 1946. Though it was enacted by the Republican-controlled 80th Congress, the law received significant support from congressional Democrats, many of whom joined with their Republican colleagues in voting to override Truman's veto. The act continued to generate opposition after Truman left office, but it remains in effect.
The Taft–Hartley Act amended the 1935 National Labor Relations Act (NLRA), adding new restrictions on union actions and designating new union-specific unfair labor practices. Among the practices prohibited by the Taft–Hartley act are jurisdictional strikes, wildcat strikes, solidarity or political strikes, secondary boycotts, secondary and mass picketing, closed shops, and monetary donations by unions to federal political campaigns. The amendments also allowed states to enact right-to-work laws banning union shops. Enacted during the early stages of the Cold War, the law required union officers to sign non-communist affidavits with the government.
Background
In 1945 and 1946, an unprecedented wave of major strikes affected the United States; by February 1946, nearly 2 million workers were engaged in strikes or other labor disputes.
“Taft–Hartley Act” enters the record as act regulating labor unions in the USA. Crown Archives preserves that source wording while asking what Taft, Hartley and regulating can confirm, complicate or overturn.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 3, 2026. The linked authority identifier is Q743212. VIAF identifies the subject as 180228795. The Library of Congress control number is n80080438. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1947, 1945, 1946 and 1935.
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This entry incorporates text from “Taft–Hartley Act” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.