Blocking statutes

Blocking statutes are a family of jurisdiction-specific measures that counter specified foreign laws, orders or legal demands. Depending on the instrument, they may prohibit compliance, require notification, deny recognition to foreign judgments, permit recovery of damages, restrict the production of information or authorise other countermeasures. There is no single global blocking-statute authority, and the legal effect of each instrument depends on its text, listed foreign measures, implementing rules and judicial interpretation.

Strategic position

Blocking measures can support resilience by giving domestic actors legal grounds to resist foreign demands, deny the intended effect of an extraterritorial measure, or strengthen the enacting state's position in a jurisdictional dispute. They can also impose coercive pressure on firms caught between conflicting legal systems. Enactment does not establish effectiveness, and a policy objection to extraterritoriality is not the same as a binding judgment that the foreign measure is unlawful.

Blocking rules should be distinguished from anti-sanctions designations, retaliatory sanctions, discovery controls and general protection-of-trading-interests legislation. These measures may coexist but have different triggers, competent authorities, remedies and territorial reach.

Authority variants

The European Union's Regulation (EC) No 2271/96 contains a notification regime, a prohibition on complying with listed foreign measures without authorisation, non-recognition provisions and a recovery mechanism. Its operation depends on the current annex and authorisation practice. In Bank Melli Iran v Telekom Deutschland GmbH, the Court of Justice held that Article 5 could be invoked in civil proceedings without a specific United States order or instruction directing the defendant. A national court considering the consequences for termination must also assess proportionality and freedom to conduct a business.

The United Kingdom's Protection of Trading Interests Act 1980 and Canada's Foreign Extraterritorial Measures Act are separate national regimes. Specific compliance claims require checking their current subordinate instruments and orders. In the People's Republic of China, the Ministry of Commerce rules of 2021 and State Council rules effective 13 April 2026 are distinct authorities. They should not be merged with each other or with other anti-sanctions legislation.

Effects and limits

Evidence on practical effect must be defined by jurisdiction, period, affected population and observable measure. The frequency of authorisations, litigation, penalties, contract termination and changes in firm behaviour may all be relevant, but none alone is a universal test. Ruys and Ryngaert document substantial international-law controversy concerning secondary sanctions and European responses without establishing one agreed rule that invalidates every foreign measure.

A firm may face simultaneous contractual, regulatory and litigation exposure, and the balance can vary between transactions even under the same statute.

This parent entry is a concept, not compliance advice. Each legal-authority child should state the jurisdiction, instrument type, enactment and amendment dates, listed measures, personal and territorial reach, competent authority, private rights, offences, authorisation route, decided cases, current status and legal review date.

See also

Extraterritoriality · EU Blocking Statute (Regulation 2271/96) · Protection of Trading Interests Act 1980 · Foreign Extraterritorial Measures Act (Canada, 1985) · MOFCOM Blocking Rules (Order No. 1 of 2021) · Secondary sanctions

Sources

• European Union, Council Regulation (EC) No 2271/96 Protecting against the Effects of the Extra-Territorial Application of Legislation Adopted by a Third Country (22 November 1996), as amended.
• Court of Justice of the European Union, Bank Melli Iran v Telekom Deutschland GmbH, Case C-124/20, ECLI:EU:C:2021:1035 (21 December 2021).
• United Kingdom, Protection of Trading Interests Act 1980, current legislation page accessed 29 July 2026.
• Canada, Foreign Extraterritorial Measures Act, RSC 1985, c F-29, current to 14 June 2026.
• Ministry of Commerce of the People's Republic of China, Rules on Counteracting Unjustified Extra-Territorial Application of Foreign Legislation and Other Measures, Order No. 1 of 2021 (9 January 2021).
• State Council of the People's Republic of China, Rules on Countering Foreign States' Unlawful Extraterritorial Jurisdiction Measures, effective 13 April 2026.
• Tom Ruys and Cedric Ryngaert, Secondary Sanctions: A Weapon out of Control? The International Legality of, and European Responses to, US Secondary Sanctions, British Yearbook of International Law 89 (2020), advance article braa007.