Anti-Commandeering Doctrine and the Tenth Amendment

The anti-commandeering doctrine holds that Congress may not issue direct orders requiring states to enact legislation or to enforce federal law. It is a structural inference from the Tenth Amendment and from the design of a system in which states are separate sovereigns rather than administrative units of the federal government.

This guide explains the three forms of commandeering identified in New York v. United States, Printz v. United States and Murphy v. NCAA, why the rule admits no balancing, how to tell a command to states from ordinary regulation that happens to bind states, and why conditional spending is the lawful alternative.

Diagram of the anti-commandeering doctrine showing the three prohibited commands and the two permissible alternatives. — Three forms of commandeering, and the two lawful ways Congress can still get what it wants.

Why the doctrine exists

Three structural concerns drive the rule. States have their own governments and their own electorates, so converting state officials into federal agents blurs the line between two sovereigns. Political accountability suffers when voters cannot tell which government made an unpopular decision. And commandeering lets Congress impose the administrative cost of federal policy on state budgets.

Because the objection is structural, the rule is categorical. There is no compelling-interest defence and no balancing. If a statute commandeers, it is unconstitutional however important the federal aim.

Exam tip: commandeering is fatal. Do not look for a justification; look for whether Congress singled out states as states and told them what to do.

Commandeering the legislature: New York v. United States

Federal legislation on low-level radioactive waste gave states a choice: regulate the waste according to federal standards, or take title to it and assume liability for it. The Court held that the take-title provision commandeered state legislatures, because neither branch of the supposed choice was one Congress could have compelled on its own. Offering a coerced election between two unconstitutional demands is still a command.

Commandeering the executive: Printz v. United States

The Brady Act required local chief law enforcement officers to conduct background checks on prospective handgun purchasers. The Court struck the provision down. Congress may not press state executive officers into service to administer a federal programme, and it does not matter that the officers already have the practical capacity to do the work.

Commandeering by prohibition: Murphy v. NCAA

Murphy extended the doctrine to federal statutes framed as prohibitions rather than commands. The Professional and Amateur Sports Protection Act did not tell states to do anything; it barred them from authorising or licensing sports gambling. The Court held that this was commandeering all the same, because a federal law dictating what a state legislature may not enact controls the content of state law just as directly as one dictating what it must enact.

The practical significance is large. Murphy means the doctrine reaches attempts to freeze state law in place, so a statute forbidding a state to repeal or decline to re-enact its own prohibition is invalid.

What is not commandeering

Congress may regulate private conduct directly under its enumerated powers, and states must obey those laws like everyone else. The distinguishing feature of commandeering is that the statute singles out states as states and directs their legislative or executive machinery.

Congress may also pre-empt state law under the Supremacy Clause where it regulates a field it has power over, and it may offer money on conditions. A statute that applies uniformly to all actors in a market, public and private alike, is not commandeering even though state agencies must comply.

Federal statute	Commandeering?	Reason
States must enact a minimum retirement age for police	Yes	Direct order to legislate (New York)
Every law enforcement officer, state or federal, must be over 21	No	Uniform regulation, not a command to states
State police must perform federal background checks	Yes	Conscription of state executives (Printz)
No state may authorise sports gambling	Yes	Dictates the content of state law (Murphy)
States accepting highway funds must raise the drinking age	No	Conditional spending (Dole)
All employers must provide health insurance	No	Direct regulation of private conduct

Separating commands to states from lawful federal regulation.

Worked example: the state commission

Congress requires every state to create a commission overseeing firearms regulation and to report compliance to a federal agency. No funding accompanies the mandate. The statute is addressed to states as states, requires them to build administrative machinery, and directs them to administer federal oversight. That is commandeering of both the legislative and executive functions and it fails under New York and Printz.

Now redraft the statute. Congress offers grants for state firearms enforcement, conditioned on the recipient establishing such a commission, with only the new grant at stake if a state declines. The condition is clear, related to the funded programme, violates no independent right, and leaves refusal a genuine option. The same policy goal is achieved lawfully through conditional spending.

The relationship with conditional spending

The two doctrines are complementary and should be discussed together. Congress cannot order states, but it can pay them, and the payment analysis has its own limits: the five South Dakota v. Dole conditions, including the anti-coercion prong added by NFIB v. Sebelius. A condition backed by the threat of losing all existing funding is coercive, and a statute so framed may raise both problems at once.

Common mistakes that cost points

Confusing commandeering with regulation that binds states incidentally. Uniform rules are permissible.
Looking for a compelling interest. The limit is structural and categorical.
Assuming a command must be affirmative. Murphy covers federal bans on state repeal.
Arguing that Printz allows conscription where state officers already have capacity. It does not.
Missing the conditional-spending alternative, which is usually the point of the question.
Treating a coerced choice between two options as consent, which New York rejects.
Forgetting that pre-emption is different: displacing state law is not the same as commanding a state to act.
Overlooking the accountability rationale, which explains why the doctrine matters for voters as well as for states.

Frequently asked questions

Can Congress require states to provide information?

Reporting duties imposed on states as states sit uneasily with Printz, though minor administrative requirements applied to everyone have generally been treated differently from conscription into a federal programme.

Does the doctrine protect cities and counties?

Local governments are creatures of the state, and Printz itself involved local sheriffs, so orders directed at them raise the same objection.

How does pre-emption differ from commandeering?

Pre-emption displaces state law that conflicts with valid federal law. Commandeering conscripts state institutions to carry out federal policy. The first is permitted; the second is not.

Anti-commandeering and California sanctuary law in 2026

California has become the practical showcase for this doctrine. The principle from New York v. United States (1992) and Printz v. United States (1997) is that Congress may not compel states to enact regulatory programmes or direct state officers to administer federal law, and Murphy v. NCAA (2018) restated it broadly enough to cover federal commands that a state maintain an existing prohibition.

That reasoning underpinned California’s limits on local participation in federal immigration enforcement. When the United States challenged the legislation, the Ninth Circuit largely upheld the restrictions on information sharing and cooperation, on the basis that a state may decline to devote its own personnel to a federal programme even where it may not affirmatively obstruct one. The same logic explains why California could legalise cannabis for state purposes: it withdrew its own prohibition rather than nullifying the federal one.

How it operates in Los Angeles County:

Detainer requests are requests. The Sheriff’s Department is not obliged to hold someone past release on a federal civil detainer, and honouring one without authority has generated Fourth Amendment liability elsewhere.
Funding conditions are the federal counter-move. Congress may attach conditions to grants, so the fight often shifts from commandeering to the spending power and its limits on coercion.
Obstruction remains unlawful. Actively impeding federal officers is not protected by the doctrine, and the distinction is one of refusal versus interference.
Preemption can still displace state law. Where Congress regulates private parties directly, anti-commandeering gives the state nothing.
The doctrine protects structure, not individuals. A defendant cannot invoke it as a personal right; it is a federalism limit.
Counties are bound by state policy. Los Angeles County must follow California law here, so local discretion is limited from above as well as below.

For 2026, ask whether Congress is regulating private conduct, conditioning money, or ordering state officers about, because only the third is barred outright. Read with preemption, the Supremacy Clause and the spending power.

Next steps

Commandeering is best learned alongside the powers Congress actually may use. Read The Spending Power and the Five Dole Test Conditions, then The Commerce Clause: 3 Categories and 2 Hard Limits and The Necessary and Proper Clause: Congress’s Multiplier.

For primary sources, read New York v. United States and Printz v. United States at Justia, the annotation to the Tenth Amendment at Cornell LII, and the examination scope published by the State Bar of California.