Standing Doctrine, the Gate That Decides Who Gets Into Federal Court

Joyce Kelly had been to Egypt and seen the habitat of the Nile crocodile. Amy Skilbred had travelled to Sri Lanka and observed the habitat of the Asian elephant and the leopard. Both were members of Defenders of Wildlife, and both were worried that American-funded projects abroad, a dam on the Nile, a development program in Sri Lanka, were pushing endangered animals closer to extinction without the review that the Endangered Species Act was supposed to require. They told a federal court they intended to go back. When the case reached the Supreme Court in 1992, Justice Antonin Scalia looked at their sworn statements, noticed that neither had bought a ticket or set a date, and wrote that intentions to return "some day" were not enough. Their worry was sincere, the Court allowed, but they had no right to be in federal court at all. That decision, Lujan v. Defenders of Wildlife, still decides who gets through the courthouse door.

In short: Standing doctrine requires anyone suing in federal court to show an injury that is concrete and imminent, caused by the defendant, and fixable by a court. Lujan v. Defenders of Wildlife set out that three-part test in 1992 and turned away environmentalists who could not show a specific harm to themselves. The doctrine has blocked progressive and conservative lawsuits alike, and it now shapes fights over climate, voting and presidential power.

What the case was about

The Endangered Species Act, passed in 1973, requires federal agencies to consult with the Interior or Commerce Department to make sure their actions are not likely to jeopardize endangered or threatened species. The question in Lujan was whether that duty applied to projects in foreign countries that the United States helped fund.

At first, the government's regulations said it did. In 1986, the Interior Department changed its interpretation and limited the consultation requirement to actions in the United States or on the high seas. Defenders of Wildlife sued, arguing that the act covered actions abroad. The group won in the lower courts. The Supreme Court never reached that question. It held that the group lacked standing to raise it.

The Endangered Species Act includes a "citizen suit" provision that lets "any person" sue to enforce it. Congress wrote that language deliberately, to recruit ordinary people as enforcers of the law. Lujan held that Congress could not, by passing such a provision, grant standing to someone who did not meet the Constitution's own requirements.

Before Lujan: the mountain valley and the trees

Lujan did not come out of nowhere. Twenty years earlier, the Sierra Club had sued to stop the Walt Disney company's plan for a large ski resort in Mineral King, a valley in California's Sierra Nevada, alongside Sequoia National Park. The club argued that it had a special interest in protecting wild places. In Sierra Club v. Morton in 1972, the Supreme Court held that this was not enough: the club had not alleged that any of its members actually used Mineral King and would be harmed by the development.

The opinion was not a total loss for environmentalists. The Court accepted that aesthetic and environmental harms, not just economic ones, could count as injuries. It simply required that the person suing be among those injured. The practical lesson was clear, and the Sierra Club absorbed it: find members who hike, fish or camp in the affected place, and have them say so under oath.

The case is best remembered for a dissent. Justice William O. Douglas argued that natural objects themselves, valleys, rivers, forests, should be able to sue for their own protection through people who know and love them. He drew on a law review article by the scholar Christopher Stone, titled "Should Trees Have Standing?" The idea did not win, but it captured a frustration that runs through every later standing fight. Environmental harm often falls on things and places that cannot speak, and on future people who are not yet here to complain. A doctrine built around individual, present-day injury will always struggle to see it.

Lujan, two decades later, applied the Sierra Club lesson with new strictness. It was not enough to use the place sometime; you had to show you would be there when the harm happened.

The three-part test

Standing comes from Article III of the Constitution, which extends the judicial power to "Cases" and "Controversies." The Court has long read those words to mean that federal courts may decide only real disputes between parties with something at stake, not abstract questions about whether the government is following the law. Scalia's opinion in Lujan gathered decades of cases into a test that every federal lawsuit must now pass.

The first element is injury in fact. The plaintiff must have suffered, or be about to suffer, a harm that is concrete and particularized, meaning it affects the plaintiff personally, and actual or imminent, not conjectural or hypothetical. Kelly and Skilbred failed here. Their interest in seeing the species was real, but the harm to them depended on a future trip they had not planned.

The second is causation. The injury must be fairly traceable to the defendant's conduct, not the result of some independent third party's choices. In Lujan, the projects abroad were carried out by foreign governments and funded by many sources, which made the causal chain from the Interior Department's regulation to the harm less direct.

The third is redressability. It must be likely, not merely speculative, that a court ruling in the plaintiff's favour would fix the injury. A plurality of the Court doubted that ordering the agencies to consult would actually stop the projects, given the small share of funding the United States provided.

Lujan also rejected two creative theories. One, the "ecosystem nexus," would have given standing to anyone who used any part of a contiguous ecosystem affected by a project. The other, the "animal nexus," would have given standing to anyone interested in studying or seeing endangered animals anywhere. Scalia called these theories too broad to fit the Constitution's limits.

The dissent and the deeper argument

Justice Harry Blackmun dissented, joined by Justice Sandra Day O'Connor. He argued that the members' affidavits were enough to show injury, and he warned that the majority was taking power from Congress, which had specifically written the citizen-suit provision to let people enforce environmental laws. He saw the decision as part of a broader effort to close the courts to environmental plaintiffs.

Justice Anthony Kennedy wrote a short concurrence that turned out to be important. He agreed that the plaintiffs lacked standing, but he wrote that Congress has the power to define injuries and chains of causation that did not exist before, so long as it identifies the injury and connects it to the people entitled to sue. That opening has been used ever since in arguments about when Congress can create rights that courts will enforce.

The real dispute in Lujan was about the separation of powers. Scalia had argued before joining the Court that standing protects the executive branch: if anyone could sue to force the government to follow the law, the courts would end up supervising the president's duty to take care that the laws be faithfully executed. Critics answered that standing doctrine had become a way for judges to avoid cases they did not want to decide, and that Congress, not the courts, should decide who may enforce the laws Congress writes.

The strongest case for strict standing

It would be easy to treat standing as a technicality used to dodge hard questions. The best version of the argument for it is more substantial.

Courts are not elected. Their legitimacy rests on deciding concrete disputes between real parties, which keeps them grounded in facts and limits their reach. A court that could hear any citizen's complaint about any government policy would become a kind of super-legislature, second-guessing decisions that belong to elected officials. Strict standing also protects defendants, including ordinary people and businesses, from lawsuits by strangers with no stake in the outcome. And it forces plaintiffs to bring cases with real facts, which tends to produce better decisions.

There is truth in all of that. The problem is that the doctrine's boundaries have proved remarkably flexible, expanding and contracting in ways that are hard to predict and easy to criticize as outcome-driven.

Standing cuts both ways

Here is the part of the story that should make both sides cautious about how they argue: standing doctrine has blocked lawsuits from the left and the right.

In Massachusetts v. EPA in 2007, a 5-4 Court held that Massachusetts had standing to challenge the Environmental Protection Agency's refusal to regulate greenhouse gases, partly because states are entitled to "special solicitude" when they sue to protect their territory. The ruling opened the door to federal climate regulation. Chief Justice John Roberts dissented, arguing that the state's injury from rising seas could not be traced to the agency's decision in a way the courts could remedy.

In Clapper v. Amnesty International in 2013, the Court held that lawyers and journalists who feared their international communications were being monitored lacked standing to challenge a surveillance law, because they could not prove they had actually been targeted, a near-impossible showing when the surveillance is secret.

In TransUnion v. Ramirez in 2021, the Court held that thousands of people wrongly flagged in a credit database as potential terrorists or drug traffickers lacked standing to sue unless the false information had been shared with someone. Justice Brett Kavanaugh's majority opinion summed up the principle in four words: "No concrete harm, no standing."

Then the doctrine began closing the door on conservative lawsuits too. In United States v. Texas in 2023, the Court held that Texas and Louisiana lacked standing to challenge the Biden administration's immigration enforcement priorities. In FDA v. Alliance for Hippocratic Medicine in 2024, a unanimous Court held that doctors opposed to abortion lacked standing to challenge the FDA's rules on the abortion pill mifepristone, because they did not prescribe it and could not show they would be harmed. In Murthy v. Missouri the same year, the Court held that states and individuals challenging the Biden administration's contacts with social media companies lacked standing.

But in Biden v. Nebraska in 2023, the Court found that Missouri had standing to challenge President Biden's student loan forgiveness plan through a state-created loan servicer that had not itself sued, and struck the plan down. Many observers saw a contrast between that generosity and the strictness applied in other cases.

Why this matters for environmental justice

For communities living next to refineries, highways and incinerators, standing is not abstract. Environmental harms are often diffuse: they affect many people in small ways, accumulate over time and are hard to trace to a single source. That is precisely the kind of injury standing doctrine has trouble recognizing.

There have been important openings. In Friends of the Earth v. Laidlaw in 2000, the Court held that residents near a river who reasonably stopped fishing and swimming in it because of a company's unlawful discharges had standing, even without proof that the discharges had damaged the river's health. The injury was their reasonable fear and its effect on how they used the water. That decision has helped community groups bring cases against polluters ever since.

Here is my argument: the right lesson from Lujan is not that environmentalists should give up on federal courts, but that lawsuits have to be built from the ground up, around specific people with specific, documented harms. A neighbour who can no longer let her children play outside because of fumes from a nearby plant has a concrete injury. Organizing communities to document those injuries is legal work as much as political work. And where federal courts close the door, state courts and state constitutions may open a different one.

What Congress can do

Kennedy's concurrence left a path that Congress can still use. Statutes that clearly define injuries, such as a right to know about pollution in your neighbourhood, or a right not to be exposed above a certain threshold, and that connect those injuries to identifiable people, are more likely to survive a standing challenge than broad grants of "any person may sue." Careful drafting matters. So does choosing the right plaintiffs.

Congress can also give agencies stronger enforcement tools, so that fewer protections depend on private lawsuits in the first place. And it can fund the public agencies whose job is to enforce environmental law, so that the burden does not fall on the communities least able to carry it.

What you can do

1. Find out what is near you. The polluters page lists EPA-regulated facilities in your ZIP code, their violations and penalties. Documented violations are often the starting point for community complaints and lawsuits.
2. Comment before rules are written. The public comment page shows federal rules open for public comment right now, closing soonest first, grouped by issue, with guidance on how to write a comment. A strong record at the agency stage matters if a case later reaches court.
3. Follow the Supreme Court's standing rulings. The Court Watch page lists this term's opinions with the Court's summaries and its emergency docket.
4. Connect with groups that do this work. The environmental justice coverage follows the communities and organizations fighting pollution where they live.
5. Support local legal capacity. Many environmental and legal aid groups need volunteers who can document conditions, attend hearings and collect the facts that make a case.