National Labor Relations Board v. Insurance Agents' International Union, Afl-Cio

Decided February 23, 1960. William Joseph Brennan Jr. delivered the opinion of the Court.

Docket 15 · 361 U.S. 477 (1960) · Cited 516 times

We don’t yet publish a summary of this opinion — read the official text below for the Court’s holding and reasoning.

How the Justices voted

Decided 6–3.

“Concurring” means agreeing with the outcome; any split shown is the Court’s judgment, not each Justice’s reasoning. Source: the Supreme Court Database (Spaeth et al.), Washington University.

Precedents cited

Supreme Court decisions this opinion relies on, ordered by how often it cites each. Cases in our collection link through; others are named.

• International Union, U. A. W. A., A. F. of L., Local 232 v. Wisconsin Employment Relations Board · 336 U.S. 245 (1949)
• National Labor Relations Board v. American National Insurance · 343 U.S. 395 (1952)
• National Labor Relations Board v. Truitt Manufacturing Co. · 351 U.S. 149 (1956)
• H. J. Heinz Co. v. National Labor Relations Board · 311 U.S. 514 (1941)
• Local 24, International Brotherhood of Teamsters v. Oliver · 358 U.S. 283 (1959)
• National Labor Relations Board v. Crompton-Highland Mills, Inc. · 337 U.S. 217 (1949)
• San Diego Building Trades Council v. Garmon · 359 U.S. 236 (1959)
• National Labor Relations Board v. Wooster Division of Borgwarner Corp. · 356 U.S. 342 (1958)
• National Labor Relations Board v. Fansteel Metallurgical Corp. · 306 U.S. 240 (1939)
• National Labor Relations Board v. Local Union No. 1229, International Brotherhood of Electrical Workers · 346 U.S. 464 (1953)
• Universal Camera Corp. v. National Labor Relations Board · 340 U.S. 474 (1951)
• Textile Workers v. Lincoln Mills of Ala. · 353 U.S. 448 (1957)
• National Labor Relations Board v. Jones & Laughlin Steel Corp. · 301 U.S. 1 (1937)
• Phelps Dodge Corp. v. National Labor Relations Board · 313 U.S. 177 (1941)
• Order of Railroad Telegraphers v. Railway Express Agency, Inc. · 321 U.S. 342 (1944)
• National Labor Relations Board v. Truck Drivers Local Union No. 449 · 353 U.S. 87 (1957)
• Federal Trade Commission v. Bunte Bros. · 312 U.S. 349 (1941)
• National Labor Relations Board v. Virginia Electric & Power Co. · 314 U.S. 469 (1941)
• Andrew J. Aikens v. State of Wisconsin · 195 U.S. 194 (1904)
• Southern Steamship Co. v. National Labor Relations Board · 316 U.S. 31 (1942)
• National Labor Relations Board v. Lion Oil Co. · 352 U.S. 282 (1957)
• National Labor Relations Board v. Sands Manufacturing Co. · 306 U.S. 332 (1939)
• Terminal Railroad v. Brotherhood of Railroad Trainmen · 318 U.S. 1 (1943)

Cited by

Later Supreme Court opinions in our collection that cite this case.

• Lodge 76, International Ass'n of MacHinists & Aerospace Workers v. Wisconsin Employment Relations Commission · 427 U.S. 132 (1976)
• New York Telephone Co. v. New York State Department of Labor · 440 U.S. 519 (1979)
• Golden State Transit Corp. v. City of Los Angeles · 475 U.S. 608 (1986)
• National Labor Relations Board v. Katz · 369 U.S. 736 (1962)
• Golden State Transit Corp. v. City of Los Angeles · 493 U.S. 103 (1989)
• National Labor Relations Board v. Brown · 380 U.S. 278 (1965)
• National Labor Relations Board v. Erie Resistor Corp. · 373 U.S. 221 (1963)
• American Ship Building Co. v. National Labor Relations Board · 380 U.S. 300 (1965)
• National Labor Relations Board v. Local Union No. 103, International Ass'n of Bridge, Structural & Ornamental Iron Workers · 434 U.S. 335 (1978)
• Chicago & North Western Railway Co. v. United Transportation Union · 402 U.S. 570 (1971)
• National Woodwork Manufacturers Ass'n v. National Labor Relations Board · 386 U.S. 612 (1967)
• Brotherhood of Railroad Trainmen v. Jacksonville Terminal Co. · 394 U.S. 369 (1969)
• National Labor Relations Board v. Amax Coal Co. · 453 U.S. 322 (1981)
• Ford Motor Co. (Chicago Stamping Plant) v. National Labor Relations Board · 441 U.S. 488 (1979)
• Carbon Fuel Co. v. United Mine Workers · 444 U.S. 212 (1979)
• Florida Power & Light Co. v. International Brotherhood of Electrical Workers, Local 641 · 417 U.S. 790 (1974)
• General Building Contractors Assn., Inc. v. Pennsylvania · 458 U.S. 375 (1982)
• Air Line Pilots Ass'n v. O'Neill · 499 U.S. 65 (1991)
• National Labor Relations Board v. Burns International Security Services, Inc. · 406 U.S. 272 (1972)
• Bureau of Alcohol, Tobacco & Firearms v. Federal Labor Relations Authority · 464 U.S. 89 (1983)
• Belknap, Inc. v. Hale · 463 U.S. 491 (1983)
• H. K. Porter Co. v. National Labor Relations Board · 397 U.S. 99 (1970)
• Detroit Edison Co. v. National Labor Relations Board · 440 U.S. 301 (1979)
• National Labor Relations Board v. Curtin Matheson Scientific, Inc. · 494 U.S. 775 (1990)
• Retail Clerks International Ass'n, Local Unions Nos. 128 & 633 v. Lion Dry Goods, Inc. · 369 U.S. 17 (1962)
• United Mine Workers of America Health & Retirement Funds v. Robinson · 455 U.S. 562 (1982)
• Charles D. Bonanno Linen Service, Inc. v. National Labor Relations Board · 454 U.S. 404 (1982)
• National Labor Relations Board v. Drivers, Chauffeurs, Helpers, Local Union No. 639 · 362 U.S. 274 (1960)
• Pattern Makers' League v. National Labor Relations Board · 473 U.S. 95 (1985)
• National Labor Relations Board v. Financial Institution Employees, Local 1182 · 475 U.S. 192 (1986)

Official text

Read the official opinion (U.S. Reports, govinfo.gov)

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Source: the U.S. Reports via govinfo.gov; authoring Justice and vote lineup from the Supreme Court Database (Washington University). Citation count from the Free Law Project’s CourtListener bulk data. Data last verified 2026-07-03. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).