Safe Third Country Agreements

A safe third country (STC) agreement is a treaty or arrangement under which a state may refuse to examine an asylum application and transfer the claimant to a third state considered capable of providing protection consistent with the 1951 Refugee Convention and its 1967 Protocol. The logic is that refugees should seek protection in the first safe country they reach, and that asylum systems should not be "shopped" across jurisdictions.

The concept is closely tied to the principle of non-refoulement (Article 33 of the Refugee Convention), which prohibits returning anyone to a territory where they face persecution. STC arrangements therefore require an assessment that the receiving country offers a fair asylum procedure, respects non-refoulement, and protects against onward removal to danger.

Prominent examples include:

• The Canada–United States Safe Third Country Agreement, in force since December 2004 and expanded in March 2023 to cover the entire land border rather than only official ports of entry.
• The EU's Dublin Regulation system, which allocates responsibility among member states and incorporates STC logic for arrivals from outside the EU.
• The UK–Rwanda asylum partnership announced in 2022, which the UK Supreme Court ruled unlawful in November 2023 (R (AAA) v Secretary of State for the Home Department) on the grounds Rwanda was not demonstrably safe; the UK then passed the Safety of Rwanda Act 2024 to legislatively designate it safe.
• The US–Guatemala, –Honduras, and –El Salvador "Asylum Cooperative Agreements" signed in 2019 under the first Trump administration; the Biden administration suspended them in 2021.

Critics, including UNHCR and human-rights organizations, argue that STC designations can be politically motivated, that receiving states often lack capacity, and that such agreements externalize asylum obligations. Proponents argue they deter irregular secondary movement and burden-share among states with functioning asylum systems.