Investor-State Dispute Settlement

Investor-State Dispute Settlement (ISDS) is a mechanism through which a qualifying foreign investor can bring a claim directly against the government hosting its investment. It operates when an investment treaty, commonly a Bilateral Investment Treaty (BIT), contains the host state's consent to arbitration and the investor accepts that offer by commencing proceedings.

Legal basis of a treaty claim

ISDS gives investors procedural standing under international law, without requiring their home state to espouse the claim. Jurisdiction depends on the wording of the applicable investment treaty and the state's consent to arbitration.

• The claimant must satisfy the treaty definitions of a protected investor and investment.
• The disputed governmental conduct must fall within the treaty's temporal and territorial scope.
• A treaty claim is distinct from a claim based only on domestic law or an investment contract, although the same facts may generate both.

From state conduct to arbitration

The investor alleges that an act or omission attributable to the host state breached a substantive treaty obligation and caused loss. Common obligations concern expropriation, non-discriminatory treatment and minimum standards of treatment, but their precise content varies by treaty.

• The investor must comply with applicable preconditions, which may include notice, consultation, limitation periods or exhaustion of local remedies.
• The claim is heard by an independent arbitral tribunal under the forum and procedural rules specified in the treaty.
• The tribunal examines jurisdiction, treaty breach, causation and the valuation of any proven loss.

Outcome and limits

If liability is established, the tribunal may issue a binding award, usually granting monetary compensation rather than invalidating the government measure itself. Recognition, enforcement and any challenge to the award depend on the applicable arbitration framework and the law of the place of arbitration.

• ISDS does not guarantee investor success: jurisdiction and breach must be proved under the particular treaty.
• Treaties may preserve regulatory space through exceptions, exclusions, narrowly drafted obligations and procedural safeguards.
• India's 2015 Model BIT requires investors to pursue available domestic remedies before initiating treaty arbitration, subject to the conditions stated in the model.