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Constitutional Law · concept 9 of 20

Express Preemption

Express preemption is the cleanest preemption story to tell, because Congress has done the work out loud.

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Official Scope

9. Express Preemption

The Supremacy Clause gives Congress the ability to include in federal legislation explicit language prohibiting the states from adopting laws concerning the subject matter of the legislation. 17

Scope of tested knowledge
  • The preemption doctrine, which limits the state from action that would directly or indirectly interfere with Congressional legislation, is key to how the Supremacy Clause is given effect.
  • State laws may be preempted expressly or impliedly.
  • Preemption analysis is largely a matter of interpreting Congressional statements or silence about the preemptive effect of the federal legislation in question.
  • A federal law may expressly provide that the states may not adopt laws concerning the subject matter of the federal legislation.
  • An express preemption clause will be narrowly construed. Altria Group, Inc. v. Good, 555 U.S. 70 (2008).
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Plain Language
Bottom line

Express preemption is in play when Congress writes explicit language into a statute barring the states from legislating on the subject. The whole inquiry is statutory interpretation, and the clause is read narrowly, so a state law survives unless it falls inside the language Congress actually wrote.

Express preemption is the cleanest preemption story to tell, because Congress has done the work out loud. The Supremacy Clause makes federal law the supreme law of the land, and one way Congress gives that supremacy teeth is by writing language directly into a statute that tells the states they may not legislate on the subject. When that language is there, you do not have to guess about Congress's intent; you read the words. That is what makes this express, as opposed to implied, preemption, where the courts have to infer that intent from a conflict or from how completely Congress occupied a field.

The whole inquiry for express preemption is statutory interpretation: what does the preemption clause actually say, and how far does it reach? And here is the part people miss. An express preemption clause is read narrowly, not broadly. A court does not stretch the clause to knock out more state law than its words clearly cover. So a state law survives unless it falls inside the language Congress actually wrote, construed narrowly.

The presence of an express clause does not turn off the rest of preemption doctrine either; a state law outside the express clause can still be impliedly preempted, but that is a separate question. For this concept, the move is simple: locate the explicit congressional language, read it narrowly, and ask whether this particular state law is inside it.

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Make it Stick

express = Congress said so in writing.

The preemptive intent is in the statute's words, not inferred.

One-line cue

explicit federal language barring state regulation of the subject, read narrowly.

Two facts that feel like they should defeat preemption but do not: the state law was passed for a good local reason, and the state has traditionally regulated this area.

Neither changes whether the state law falls inside the express clause.

The single tell of express preemption is that the federal statute itself contains language prohibiting state regulation, and the only real question is whether the clause, narrowly construed, reaches this state law.

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Rule in Action
The facts

A federal statute regulating the labeling of a consumer product contains a clause stating that no state may impose any requirement concerning the product's label that differs from the federal labeling standard. A state later enacts a law requiring an additional warning sentence on the same product's label. A manufacturer challenges the state law as preempted.

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Is there explicit congressional language barring state regulation of this subject?YesThe federal statute contains a clause expressly prohibiting differing state label requirements. That makes this an express preemption case, and the analysis is interpreting the clause.
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How is the clause read?Narrowly. The court will not stretch it past the label requirements its words actually cover.
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Does this state law fall inside the clause?YesA state-mandated additional warning sentence on the label is a state label requirement that differs from the federal standard, which is exactly what the clause prohibits. The state law is expressly preempted.
Flip one fact

Suppose the same federal clause barred only differing requirements about the product's label, and the state law instead regulated how the product is stored in warehouses. Read narrowly, a clause about labels does not reach a storage rule, so the storage law is not within the express clause, and express preemption does not knock it out.

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Common Distractors
Overstatement

An absolute option saying any federal statute on a subject, or any express clause, displaces ALL state law in the area, or that a state's power over a subject is unlimited.

An express preemption clause is construed narrowly and reaches only the state laws its language covers; neither side's power is absolute.
Misstated standard

An option stating that an express preemption clause is construed broadly, or in favor of preemption, or that doubts are resolved against the state.

The printed rule is that an express preemption clause is construed narrowly.
True but irrelevant

A 'No' resting on the state law's legitimate local purpose or on the area being one the state has traditionally regulated.

For express preemption the only question is whether the state law falls inside the explicit clause; purpose and tradition do not decide it.
Right result, wrong reason

A 'Yes' that preempts the state law but rests on field occupation or conflict with a federal objective rather than on the explicit clause.

When the statute contains an express clause covering the state law, name the express statutory language as the operative ground; field and conflict are separate implied-preemption inquiries.
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How It's Tested
When you see

the stem hands you a federal statute that contains language telling the states they may not regulate a subject, then a state law on that same subject.

Run the analysis
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The instant you see explicit congressional language barring state regulation, you are in express preemption, and the work is interpreting the clause.

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Read the clause narrowly and ask one question: does this particular state law fall inside the words Congress wrote?

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If yes, it is expressly preempted.

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If the state law sits outside the clause's narrow reach, express preemption does not defeat it, even though implied preemption might be a separate question.

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Distrust any answer that makes the clause sweep the whole field or that lets a good local purpose or a tradition of state regulation save a law the clause plainly covers.

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Practice
Question 1 of 5

A federal statute that regulates the safety of a household appliance includes a clause providing that no state may impose any safety requirement concerning that appliance that is different from the federal requirement. A state later enacts a law imposing an additional safety feature requirement on the same appliance that goes beyond the federal requirement. A manufacturer subject to both laws argues that the state requirement is preempted, and the state responds that it enacted the requirement to protect its own residents.

Under existing precedent, is the state's additional safety requirement preempted?

Question 2 of 5

A federal statute regulating a type of financial product contains a clause stating that no state may impose disclosure requirements on the product that differ from those in the federal statute. A state enacts a law that does not touch disclosures at all but instead caps the interest rate that may be charged on the product. A company challenges the state interest-rate cap, pointing to the federal statute's preemption clause.

Under existing precedent, does the federal statute's express preemption clause displace the state interest-rate cap?

Question 3 of 5

A federal statute governing a category of transportation equipment includes a clause providing that the states may not adopt their own standards for the design of that equipment. The clause says nothing about how the equipment is maintained or inspected after sale. A state enacts a law requiring periodic safety inspections of the equipment by licensed mechanics. An operator argues the inspection law is expressly preempted by the federal design clause.

Under existing precedent, is the state inspection law expressly preempted by the federal design clause?

Question 4 of 5

A federal statute regulating a class of pesticides contains a clause stating that no state may impose any labeling requirement for the pesticide in addition to or different from the requirements under the federal statute. A state enacts a law requiring that the pesticide's container carry an extra warning label not required by the federal statute. A manufacturer challenges the state labeling law, and the state argues that requiring more warnings is consistent with, rather than contrary to, the federal goal of safety.

Under existing precedent, is the state's extra labeling requirement expressly preempted?

Question 5 of 5

A federal statute regulating a medical device contains a clause stating that no state may impose requirements relating to the safety of the device that are different from the federal requirements. The clause does not mention the device's price or its advertising. A state enacts a law that limits the price that may be charged for the device. A seller argues that the state price-control law is expressly preempted, and a court must decide how far the express clause reaches.

Under existing precedent, is the state price-control law expressly preempted by the federal safety clause?