What are the facts?
Darby Lumber Company, a small Georgia manufacturer of lumber products, employed workers to produce goods, some of which were shipped across state lines. The Fair Labor Standards Act of 1938 (FLSA) required covered employers to pay a federal minimum wage, observe maximum hour limits, and keep employment records, and it prohibited the shipment in interstate commerce of goods produced by employees paid less than the minimum wage or worked beyond maximum hours. A federal indictment charged Darby with shipments of noncompliant goods, failure to pay required wages and overtime, and violations of the Act's recordkeeping provisions. In a parallel civil action, the United States sought to enjoin Darby from further violations. The district court quashed the indictment and dismissed the civil suit, holding that the FLSA's wage-and-hour and recordkeeping provisions were unconstitutional as beyond Congress's Commerce Clause power and as violative of the Tenth Amendment's reservation of powers to the states. The court also viewed the Act as an attempt to regulate local manufacturing rather than commerce. The government appealed directly to the Supreme Court.
What is the legal issue?
Does Congress, under the Commerce Clause and the Necessary and Proper Clause, have authority to prohibit the interstate shipment of goods produced under substandard labor conditions and to regulate the wages, hours, and recordkeeping of employees engaged in the production of goods for interstate commerce? Additionally, does the Tenth Amendment bar such federal regulation as an intrusion into powers reserved to the states?
What rule applies?
Congress's power to regulate interstate commerce is plenary and includes the authority to prohibit the shipment in interstate commerce of goods deemed harmful or produced under conditions that frustrate valid regulatory aims. Under the Necessary and Proper Clause, Congress may reach intrastate activities, including labor standards of employees producing goods for commerce, when those activities have such a close and substantial relation to interstate commerce that their control is an appropriate means to the attainment of a legitimate end. Congressional motive is irrelevant when the chosen means fall within an enumerated power. The Tenth Amendment imposes no independent limit on enumerated federal powers; it merely reserves to the states those powers not delegated to the United States.
What did the court hold?
Yes. The FLSA's prohibition on interstate shipment of goods produced in violation of the Act, and its wage, hour, and recordkeeping requirements for employees engaged in producing goods for interstate commerce, are constitutional exercises of Congress's Commerce Clause power, as reasonably adapted to protecting and regulating interstate commerce. The Tenth Amendment does not bar this legislation.
What is the reasoning?
The Court, per Justice Stone, emphasized that the Commerce Clause grants Congress plenary authority over interstate commerce, including the power to exclude from commerce articles it chooses for the protection of the public or to effectuate legitimate regulatory policies. Citing precedents like the Lottery Case, Hipolite Egg, and Hoke, the Court explained that congressional power to prohibit interstate shipment does not depend on the intrinsic harmfulness of the goods or on a judicial inquiry into legislative motive; it is sufficient that the prohibition is a means to a constitutional end. Turning to the FLSA's wage and hour provisions, the Court rejected the formalistic distinction between production and commerce that had previously insulated local manufacturing from federal regulation. The Court held that when intrastate activities have such a close and substantial relation to interstate commerce that their control is an appropriate means to the attainment of a legitimate congressional end—here, preventing the competitive evils and market distortions caused by substandard labor conditions—Congress may regulate those activities pursuant to the Commerce Clause and the Necessary and Proper Clause. Congress could rationally conclude that substandard wages and excessive hours in the production of goods for commerce burden interstate markets by depressing labor standards and unfairly shifting costs, and thus it could regulate those labor conditions. The Court expressly overruled Hammer v. Dagenhart, abandoning the view that Congress cannot use its commerce power to exclude goods based on the conditions of their production. The focus is on the existence of a constitutional power and the appropriateness of the chosen means, not on the locus of production. As to recordkeeping, the Court held that requiring employers to keep employment records is a reasonable, incidental means of enforcing valid commerce regulation and does not offend the Fifth Amendment. Finally, the Court characterized the Tenth Amendment as a truism that does not carve back enumerated federal powers; because the FLSA falls within the commerce power as properly understood, there is no Tenth Amendment violation.
Why is this case significant?
Darby is a cornerstone of modern Commerce Clause jurisprudence. It marks the Court's definitive shift away from Lochner-era formalism toward a functional, effects-based approach, validating federal regulation of intrastate activities that substantially affect interstate commerce. The decision overruled Hammer v. Dagenhart, reaffirmed Congress's authority to exclude goods from interstate commerce, and articulated the close and substantial relation test that paved the way for Wickard v. Filburn and later civil rights cases like Heart of Atlanta Motel. Darby also reframed the Tenth Amendment as a statement of federalism's basic allocation of powers, not an independent limit on otherwise valid exercises of enumerated authority. For law students, it is essential for understanding federal regulatory power, the interplay of the Commerce Clause and Necessary and Proper Clause, and the evolution of constitutional interpretation in the New Deal era.
What federal statute was at issue in United States v. Darby and what did it require?
The case involved the Fair Labor Standards Act of 1938 (FLSA). It set federal minimum wage and maximum hour standards for covered employees engaged in producing goods for interstate commerce, required employers to keep employment records, and prohibited the interstate shipment of goods produced in violation of those standards.
How did Darby change Commerce Clause doctrine from earlier cases?
Darby rejected the rigid production-versus-commerce distinction and overruled Hammer v. Dagenhart, embracing an effects-based approach. It held that Congress may regulate intrastate activities, including labor standards, when those activities have a close and substantial relation to interstate commerce and regulation is a reasonable means to achieve a legitimate end.
What did the Court say about the Tenth Amendment in Darby?
The Court described the Tenth Amendment as a truism: it simply affirms that powers not delegated to the United States are reserved to the states or the people. It does not limit the exercise of enumerated powers. Because the FLSA fell within the Commerce Clause as properly understood, there was no Tenth Amendment barrier.
Did the Court consider Congress's motive for regulating labor conditions?
No. The Court reiterated that congressional motive is irrelevant when Congress acts within an enumerated power. If the regulation is a means reasonably adapted to a legitimate end under the Commerce Clause, courts do not inquire into the subjective legislative purpose.
How did Darby influence later cases like Wickard v. Filburn and civil rights decisions?
Darby's close and substantial relation framework and its broad view of congressional authority laid the foundation for Wickard's substantial effects test, which allowed regulation of even local, noncommercial activity when aggregated effects burden interstate commerce. It also supported the use of the Commerce Clause to uphold civil rights legislation regulating businesses serving interstate travelers and markets.