Executive Order 10340: Directing the Secretary of Commerce To Take Possession of and Operate the Plants and Facilities of Certain Steel Companies
President: Harry S. Truman · Economy, finance and labor
Truman directed the Commerce Secretary to take possession of steel plants during a labor dispute. The Supreme Court held that the President lacked authority to seize them.
Research depth: Expanded historical analysis. About this collection
Status: Struck down.
Is Executive Order 10340 still in effect? No. The Supreme Court held the steel seizure unauthorized in Youngstown Sheet & Tube Co. v. Sawyer on June 2, 1952, affirming the injunction against carrying out Executive Order 10340. The decision ended the order’s legal basis for federal possession and operation of the steel mills.
- Signed
- April 8, 1952
- President
- Harry S. Truman
- Current position
- Struck down

What the order directed
The Secretary of Commerce was instructed to take possession of listed steel facilities and operate them to maintain production. The President argued that a stoppage would endanger national defense during the Korean War. Those claims were the administration's rationale, not a statutory grant of seizure power.
Who had to do what
| Agency or official | Direction | Timing |
|---|---|---|
| Commerce Secretary | Take possession of necessary listed steel facilities; operate or arrange operation; set employment terms with specified bargaining protections; issue consistent rules and delegate functions. Return possession under section 6 conditions. | Original directions in sections 1, 3, 6 and 7; no fixed calendar end. Subject to the later injunction and Supreme Court decision. |
| All federal agencies | Cooperate with Commerce to the fullest extent possible. | During implementation; no separate deadline; section 2. |
| Existing plant management | Continue ordinary operations, collections and disbursements, except as Commerce directs; ordinary financial obligations continue. | While possession operates under the order; sections 4–5. |
Signed order and attached company list. The possession directive was not a permanent transfer of corporate ownership. The emergency cited in its preamble was a December 1950 proclamation, not this executive order.
What happened to possession
The Court’s opinion records that Commerce immediately issued possessory orders and used company presidents as federal operating managers; the companies complied under protest and sought relief. Truman’s June 10 message then reported that, after the June 2 decision, he immediately ordered government possession relinquished. That is direct evidence of the compliance instruction, not a plant-by-plant receipt or an exact physical handback time. Youngstown, 343 U.S. 582–583; June 10, 1952 message.
The constitutional ruling did not settle the wage dispute. On July 24, Truman reported agreement on important basic issues between six major companies and the union, with ratification still expected the next morning. This later negotiated development was not reinstatement of the seizure or proof that every plant had already restarted. July 24, 1952 statement.
Why it was signed
Truman issued EO 10340 amid a dispute between steel companies and workers represented by the United Steelworkers. The signed order said a strike was due to begin on April 9, 1952 and described steel as important to United States defense during the Korean War. Those are the administration’s stated reasons for acting, not a court finding that the President had lawful power to take over private plants. Truman Library signed order.
The Truman Presidential Library’s document set explains the wage, price and bargaining conflict that preceded the order. It notes the possible use of the Taft-Hartley process and the problem with relying on a statute aimed at failures to fill defense orders when the steel companies had not defaulted in that way. The existence of a serious dispute did not answer the legal question of which powers Congress had conferred on the President. Truman Library background and documents.
The order’s recital referred to defense requirements and an asserted threat from interruption of steel production. It should be read alongside the case record rather than treated as proof of an unlimited wartime emergency power. The dispute became a test of whether an executive claim of necessity could substitute for congressional authority to seize property. EO 10340 text; Youngstown opinion.
What the text authorized
Section 1 directed the Secretary of Commerce to take possession of named companies’ plants and facilities as he deemed necessary for national defense, and to operate or arrange their operation. This was an instruction to take control of business property, not an order merely to request more production. An attached list identified the affected companies. Truman Library text, section 1 and attachment.
Section 3 gave the Commerce Secretary authority to set terms and conditions of employment while recognizing collective bargaining subject to continued operation. Sections 4 and 5 contemplated existing company management continuing many routine business functions and the continuation of ordinary financial obligations unless the Secretary directed otherwise. These details distinguish federal possession and operation from an immediate transfer of company ownership. EO 10340, sections 3–5.
Section 6 contemplated returning control when the Secretary judged further federal possession unnecessary. Other provisions authorized interagency cooperation and implementing regulations. The order did not specify a court-approved end date; the litigation rapidly determined its fate. An explanation should show what the text attempted before giving the later judicial result. EO 10340, sections 2, 6–7.
What happened in practice
Steel companies went to court to challenge the seizure. In Youngstown Sheet & Tube Co. v. Sawyer the Supreme Court held that the President lacked authority to seize the mills. The case decided the lawfulness of this particular exercise of executive power; it did not say that every emergency measure, labor intervention or military decision was forbidden. Published Supreme Court decision, 343 U.S. 579.
The majority opinion by Justice Black focused on the absence of constitutional or statutory authority for making this kind of law and taking the property. Justice Jackson’s separate concurrence set out a framework relating presidential power to Congress’s approval, silence or opposition. That framework became influential, but Jackson’s opinion is not the single majority rationale. The guide should name both the holding of the Court and the status of the concurrence. Youngstown, U.S. Reports.
The Truman Library preserves the President’s own explanation of the seizure and the later dispute. His claim that interruption would endanger defense is important evidence of executive reasoning, but the Supreme Court did not accept the order as lawful merely because that reason was sincerely asserted. Presenting the administration’s case and the Court’s answer in separate sections helps readers follow the disagreement. Truman address and order record; Supreme Court decision.
Reaction and legacy
Youngstown is a central presidential-power precedent because it forced a distinction between the urgency of a policy problem and the existence of legal authority to solve it by seizure. The 1952 order itself did not survive judicial review. Later readers should use the case to understand how courts assessed this action, while examining any new emergency dispute under its own statutes and facts. Supreme Court decision.
Possession, litigation and the separation of powers
Truman directed the Secretary of Commerce to take possession of steel facilities as a strike threatened production during the Korean War. This was a concrete direction to control private property and keep plants operating, with an attached list of companies. It was more than a public appeal for bargaining, but it did not simply erase the companies or make the government their permanent owner. The terms of operation and management in the order matter to that distinction. Truman Library signed order.
The administration argued that an interruption threatened defense needs. The companies challenged the seizure in court, and the Supreme Court rejected the claim of presidential authority in Youngstown Sheet & Tube Co. v. Sawyer. The government’s stated emergency and the court’s legal judgment should be given their own voices. An urgent policy problem does not by itself identify a lawful solution. Truman Library steel-seizure documents; Supreme Court opinion.
Justice Black’s majority opinion and Justice Jackson’s concurrence are often compressed into a single slogan. Jackson’s three-part analysis of presidential action in relation to Congress became influential, but it was a concurrence, not the wording of the executive order. To explain this case, identify the holding, the opinion advancing a particular analytical framework and the congressional statutes the justices considered. Youngstown opinion.
The federal government had potential statutory approaches to labor disputes, but the existence of alternatives did not enlarge the authority of EO 10340. The case turned on what Congress had authorized or withheld, not whether steel mattered to the military. This is why the attachment identifying companies, the Commerce Secretary’s assigned role and the legal basis all belong in a complete account. Truman Library signed text; Youngstown decision.
The litigation proceeded quickly because the seizure immediately affected company control and a pending labor dispute. A reader should not describe the order as an enduring federal steel program after the Supreme Court decision. Later strikes, contracts and industry conditions have separate histories. EO 10340’s enduring importance is constitutional: it presents a clear contested use of executive power in an emergency, resolved against the President on the legal record before the Court. Supreme Court opinion.
For another asserted emergency power, Youngstown offers a way to ask questions, not an automatic answer. Identify the action, its statutory setting and any congressional policy before comparing it to this seizure. Different legal authorities can produce different results. A sound guide explains the 1952 order and case without claiming that every later presidential emergency action is either valid or invalid by simple analogy. Youngstown decision.
The company list and the Secretary of Commerce
The attachment to EO 10340 named companies whose plants were subject to possession. That list constrains the scope more precisely than a summary saying the President seized “all steel.” A particular company’s legal position should be checked against the attachment and the Secretary’s implementing actions. Truman Library order and attachment.
The order contemplated continued use of company management for ordinary operations while the government took possession. That administrative choice matters to the difference between temporary federal control and a permanent transfer of title. It also shows the practical problem Truman was trying to solve: keep production running in a labor dispute, rather than restructure the industry’s ownership. EO 10340.
The Secretary was empowered to address employment terms under the order, an unusually direct intrusion into a dispute between labor and management. A reader should not characterize the order as simply enforcing an existing collective-bargaining agreement. Its legal effect, if valid, would have been federal control over facilities and operational terms. Truman Library text.
The steel companies obtained judicial review promptly. The pace reflected the immediate effect on property and production. In analyzing the case, keep the order, district-court proceedings, Supreme Court judgment and later labor settlement in their proper sequence. A later agreement does not make the initial assertion of executive power lawful retroactively. Library of Congress Youngstown opinion.
Why the Court rejected the seizure
The majority held that the President lacked authority from Congress or the Constitution to seize the mills. The existence of a wartime production concern was not ignored; it was insufficient as a source of lawmaking power. The case does not imply that national defense is irrelevant to all executive action, only that this specific seizure lacked a lawful basis on the record presented. Youngstown opinion.
Justice Jackson’s concurrence examined presidential power in relation to congressional authorization, silence or opposition. Its three-category account is a framework for analysis, not a paragraph in EO 10340. A guide should identify it as a concurrence and explain why Congress’s legislative choices mattered to his reasoning. Youngstown, Jackson concurrence.
The Court’s different opinions did not all use identical reasoning. A citation to “Youngstown” can therefore conceal whether an author means Black’s majority, Jackson’s framework or a separate concurrence. For a narrow proposition about the order’s invalidity, the judgment is clear. For a broader test about future cases, cite the specific opinion. U.S. Reports 343 U.S. 579.
Historical analogies should also compare statutory settings. A later president acting under an explicit statute would stand differently from Truman’s assertion in this case. EO 10340 is an unusually concrete test of separation of powers because it directed possession of identified private property and was challenged immediately. Youngstown decision.
The opinion and its lasting test
The case reached the Supreme Court as a direct challenge to the Commerce Secretary’s possession of the plants. The Court held the order unauthorized. Justice Black’s opinion and Justice Jackson’s concurrence are both in the U.S. Reports; readers can examine the different reasoning rather than rely on a slogan about emergency power. Library of Congress Youngstown.
Jackson’s framework asks how presidential power relates to Congress’s will. Its strongest category involves congressional authorization; its weakest involves action incompatible with Congress’s expressed or implied will. Describing the three categories accurately requires noting his separate concurrence and the statutory context he analyzed. Youngstown opinion.
The order’s employment provisions show why seizure was more than symbolic. The government would have influenced management of production and labor terms. That breadth helped make the legal question urgent for owners and workers alike. Truman Library EO 10340.
The holding did not create a rule that federal government may never regulate steel or protect defense supply. It rejected this particular presidential seizure without sufficient authority. Statutes, appropriations and subsequent actions need their own analysis. Youngstown U.S. Reports.
A fact pattern for constitutional comparison
Truman confronted a threatened strike, invoked defense production and ordered the Commerce Secretary to possess identified mills. Congress had legislated on labor disputes, and the companies promptly sought judicial relief. Those facts frame Youngstown’s separation-of-powers question. Removing any of them can make the case seem like a free-floating statement about every presidential emergency. EO 10340; Youngstown.
The Court’s decision also illustrates that a president cannot derive lawmaking authority merely from the scale of a problem. The appropriate source could have been a statute or constitutional grant. The administration’s policy rationale was serious, but the majority concluded it did not supply the missing legal authority. U.S. Reports Youngstown.
After the judgment, industrial relations still had to be resolved through other means. The ruling decided validity of the seizure, not an ideal wage or steel price. A complete account should leave those labor questions with their own source record. Truman Library steel documents.
Justice Jackson’s concurrence remains useful for later cases because it forces analysts to ask what Congress authorized or opposed. It should be used as an analytical aid, not a claim that EO 10340 itself contained three categories. Youngstown concurrence.
Common questions
Did the order nationalize the steel companies permanently?
No. It directed the Commerce Secretary to take possession and operate named facilities during the asserted emergency, and it contemplated returning them when federal operation was no longer necessary. Company management could continue routine functions unless directed otherwise. The order was then held unlawful. These points differ from saying that ownership of the companies permanently passed to the government. EO 10340, sections 1, 4–6; Youngstown.
Why was the Korean War mentioned?
The order’s recital described the war and defense need for steel as the administration’s reason for preventing a stoppage. That explains why Truman acted at that moment. It did not itself create a statutory seizure power, and the Supreme Court still examined the legal source of presidential authority. Truman Library signed text; Youngstown opinion.
Did the Supreme Court ban every emergency action by a president?
No. It rejected the seizure in the circumstances before it. A later emergency action can rest on different legislation and different facts. Justice Jackson’s concurrence offers an influential way to consider the relationship between presidential action and Congress, but it should not be quoted as though Congress or the full Court enacted a universal three-part statute. Youngstown, 343 U.S. 579.
Was Justice Jackson’s test the majority opinion?
No. Justice Black wrote the Court’s opinion. Jackson wrote a separate concurrence explaining a framework for presidential power depending in part on Congress’s position. His reasoning has been widely discussed, but the distinction between a majority holding and a concurrence matters to anyone using the case as legal authority. Official opinion and separate writings.
What happened later
In Youngstown Sheet & Tube Co. v. Sawyer, 343 U.S. 579 (1952), the Supreme Court rejected the seizure. Justice Jackson's separate concurrence developed a widely used framework for assessing presidential power in relation to Congress; it was a concurrence, not the single majority rationale.
Evidence timeline
- April 8, 1952 Truman signed EO 10340; Commerce immediately issued possession orders, as the Court later recounted. Official source
- April 10, 1952 EO 10340 was published at 17 FR 3139. Official source
- April 30, 1952 The District Court entered a preliminary injunction; the Court of Appeals stayed it that day. Official source
- May 3, 1952 The Supreme Court granted review; oral argument followed May 12–13. Official source
- June 2, 1952 The Supreme Court held the seizure unauthorized and affirmed the injunction. Truman later reported his immediate instruction to relinquish possession. Official source
- June 10, 1952 Truman reported the compliance instruction and renewed strike to Congress and sought legislative action. Official source
- July 24, 1952 Truman announced agreement on basic issues, with union ratification still to follow. Official source
Why this order matters
The steel seizure case is a leading test of the boundary between executive action and Congress's lawmaking power. Its legal result is the invalidation of this order, not a general ban on every emergency action.
Sources and historical records
- National Archives — EO 10340 disposition Official or archival record
- Library of Congress — Youngstown, U.S. Reports 343 U.S. 579 Official or archival record
- Supreme Court — Youngstown Sheet & Tube Co. v. Sawyer, 343 U.S. 579 (1952)
- National Archives — EO 10340 disposition: nullified
- Truman Library: signed EO 10340 and company list
- Truman Library: June 10, 1952 compliance and strike message
- Truman Library: July 24, 1952 settlement statement
Last recorded source review: September 28, 2026. Historical impact and current legal effect are distinct; follow the later sources for the current position.
Original assignments, court chronology and Truman’s dated implementation and settlement messages reviewed October 16, 2026. The Court’s ruling and Jackson’s separate concurrence remain distinct.