OBB Personenverkehr AG v. Sachs, 136 S. Ct. 390 (2015) (Supreme Court of the United States)
OBB Personenverkehr AG v. Sachs is a cornerstone Foreign Sovereign Immunities Act (FSIA) case clarifying when the statute's commercial-activity exception strips a foreign sovereign (or its instrumentality) of immunity in U.S.
Whether a personal-injury action against a foreign, state-owned railway is "based upon" commercial activity carried on in the United States within the meaning of the FSIA's commercial-activity exception, 28 U.S.C. § 1605(a)(2), when the plaintiff purchased a rail pass in the United States but the injury-causing conduct occurred abroad.
Under the FSIA, foreign states and their instrumentalities are presumptively immune from suit in U.S. courts unless a statutory exception applies. 28 U.S.C. §§ 1604, 1605. The commercial-activity exception withdraws immunity in any case "in which the action is based upon a commercial activity carried on in the United States by the foreign state" or certain acts in or outside the United States connected to commercial activity that have specified effects. § 1605(a)(2). An action is "based upon" the particular conduct that constitutes the gravamen of the suit—i.e., those core acts that actually give rise to the cause of action and would entitle the plaintiff to relief—not merely any U.S. contact that is a background fact or but-for cause. See Saudi Arabia v. Nelson, 507 U.S. 349 (1993).
No. Sachs's suit is not "based upon" OBB's U.S. commercial activity (the sale of the rail pass). The gravamen of the action is OBB's alleged tortious conduct in Austria, where the injury occurred. Therefore, the commercial-activity exception does not apply, and OBB retains sovereign immunity. The Supreme Court reversed the Ninth Circuit.
Sachs cements a gravamen-focused analysis for the FSIA's commercial-activity exception, reinforcing that foreign sovereigns are not exposed to U.S. tort suits for injuries abroad simply because a related ticket or product was sold domestically. It reaffirms Nelson's approach and curbs expansive theories that tether jurisdiction to peripheral U.S. transactions. For law students, the case is central to mastering FSIA structure, statutory interpretation of "based upon," and the line between subject-matter jurisdiction and the merits in transnational tort and contract litigation. It also flags strategic pleading issues: plaintiffs must connect their claims to the specific U.S. conduct that constitutes the actionable wrong, not merely to antecedent or "but-for" sales activity.