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Federal Question Jurisdiction
Federal question jurisdiction means a federal court can hear your case because it involves a right or law that comes from the U.S. Constitution, a federal treaty, or a federal statute.
What it actually is
It is a basis for subject-matter jurisdiction that allows a lawsuit to be filed in or removed to federal court if the plaintiff’s claim arises under federal law. The federal issue must generally appear on the face of a well-pleaded complaint, and it cannot be merely a defense or a minor part of the case.
Why it matters in your case
If your case involves a federal question, it may be heard in federal court instead of state court, which can mean different procedural rules, judges, and juries. This affects where you file your lawsuit or, if you are the defendant, whether you can move the case to a federal forum.
The common misunderstanding
People often think any case involving a federal law automatically qualifies, but the federal question must be an essential part of the plaintiff’s own claim—not just a defense or an anticipated response.
Get the actual rule
Definitions are orientation; rules are authority
This page explains the concept. When it matters to your case, read the rule that governs it in your court — we hold Texas, federal and Washington court rules word for word, and every state's official resources are on the state pages. If someone cites a case at you, check that it exists first.
Related
Terms that travel with this one
General explanation, not legal advice, and not specific to any state — procedures and deadlines vary by jurisdiction and court. If you can get a lawyer or free legal aid, do: every real option.