Declaratory Judgment Act (28 U.S.C. § 2201)

“In a case of actual controversy within its jurisdiction … any court of the United States … may declare the rights and other legal relations of any interested party seeking such declaration, whether or not further relief is or could be sought.”


Key Features

  • Permissive (“may declare”) — courts retain discretion to decline to entertain declaratory judgment actions even when they have jurisdiction (Brillhart v. Excess Insurance Co.)
  • Does not expand subject matter jurisdiction — there must be an independent basis for federal court jurisdiction (§ 1331 or § 1332)
  • “Case of actual controversy” — requires an Article III case or controversy; ripeness is essential

Ripeness / Actual Controversy

MedImmune, Inc. v. Genentech (2007): The “actual controversy” requirement is coextensive with Article III’s case-or-controversy requirement. The test is “whether the facts alleged, under all the circumstances, show that there is a substantial controversy, between parties having adverse legal interests, of sufficient immediacy and reality to warrant the issuance of a declaratory judgment.”

Aetna Life Insurance Co. v. Haworth (1937): A declaratory judgment case must be a real and substantial controversy admitting of specific relief through a decree of conclusive character.


Discretion to Decline

Even when jurisdiction exists, courts consider:

  • Whether the judgment will settle the controversy
  • Whether the judgment will serve a useful purpose
  • Whether the declaratory action is reactive rather than proactive (Wilton v. Seven Falls Co.)

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