Also known as: dormant commerce powers · dormant commerce clause · negative commerce clause
Written by attorneys · grounded in primary & secondary sources — see below
A constitutional doctrine that limits state authority to regulate interstate commerce when Congress has not acted. The doctrine invalidates state laws that discriminate against out-of-state economic interests or impose excessive burdens on the free flow of commerce across state lines. A state measure survives only if it serves a legitimate non-economic local interest and no reasonable nondiscriminatory alternative exists, or if Congress has expressly authorized the discrimination.
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Demetrius Douglas runs a fishing supply business that imports live baitfish from out of state into Kentucky. Kentucky enacts a ban on such imports to protect local ecosystems from invasive species. Douglas challenges the ban in federal court. The court upholds the law because the state demonstrates a vital ecological interest and shows that inspection or sterilization would not adequately protect native waters.
Dorothy Daniels owns a waste-hauling company that transports hazardous waste from Kansas into Missouri for disposal. Missouri charges Daniels a substantially higher fee than it charges in-state generators for identical services. Daniels sues, claiming discrimination. The court invalidates the fee structure because the differential turns solely on the waste's geographic origin and lacks a valid justification.
Danielle Dixon operates an out-of-state winery that seeks to ship wine directly to consumers in Connecticut. Connecticut allows in-state wineries to ship directly but denies the same right to out-of-state producers. Dixon sues under the dormant commerce power. The court strikes down the scheme as economic protectionism that the Twenty-First Amendment does not justify.
Diana Delgado runs an out-of-state scrap-metal dealer that offers to sell to a state-operated recycling program in Maryland. The state pays higher prices to in-state sellers and offers less favorable terms to Delgado. Delgado sues, alleging discrimination. The court upholds the program because the state is acting as a market participant rather than a regulator.
Darrell Duncan operates a private waste-hauling firm in New York that wants to send trash to cheaper out-of-state landfills. The county requires haulers to deliver waste only to a publicly owned facility. Duncan challenges the ordinance. The court applies lenient review and upholds the measure because it favors a government facility performing a traditional public function.
Doris Duffy manages a nuclear-waste disposal site in South Carolina that receives waste from out-of-state generators. Congress has expressly authorized states to impose surcharges on certain out-of-state nuclear waste. South Carolina enacts the surcharge. Duffy sues, claiming a dormant commerce violation. The court rejects the challenge because the congressional authorization removes the constitutional objection.
A facially discriminatory state law survives if it advances a legitimate and important non-economic local interest such as protecting ecological resources and no reasonable nondiscriminatory alternative exists. The state must demonstrate both the strength of the interest and the absence of less restrictive means. Mere economic protectionism never qualifies.
Yes. When a state buys or sells goods itself rather than regulating private parties, it may favor residents without violating the dormant commerce power. The doctrine applies only to the state's direct commercial dealings and does not extend to downstream regulatory conditions on purchasers.
…of federal regulation under the commerce power. When cases involving these laws first reached this Court, we imported from our negative Commerce Clause cases the approach that Congress could not regulate activities such as "production," "manufacturing," and "mining." See, e. g. , United States v. E. C. Knight Co. , 156 U. S. 1, 12 (1895)…
…the state law preempted. Cf. Southern Pacific Co. v. Arizona ex rel. Sullivan , 325 U. S. 761, 768-769 (1945) (under negative Commerce Clause
…As we explained in a case decided more than a decade after LaRue , although the Twenty-first Amendment limits the effect of the dormant Commerce Clause
…government apart from a typical private business. Cf. Tracy, supra , at 313 (Scalia, J., concurring) (“Nothing in this Court’s
…in protecting regionally based corporations from acquisition by foreign corporations). Moreover, the Court has held in the dormant Commerce Clause
When Congress clearly authorizes states to discriminate against interstate commerce in a specified manner, the dormant commerce power does not invalidate the state action. The authorization must be express and tailored to the challenged measure. Absent such authorization, discriminatory treatment remains presumptively invalid.
Flow-control ordinances that direct waste to a government-owned facility receive more lenient review than those favoring private entities. The measure is likely valid when the favoritism serves legitimate public objectives rather than economic protectionism. Courts distinguish such public-purpose rules from classic discrimination against interstate commerce.