Letter of Recall

A letter of recall is one half of the paired credentials used to open and close a head-of-mission's tour of duty. Where a letter of credence introduces an ambassador to the receiving state, the letter of recall formally terminates that accreditation. It is typically signed by the sending head of state and addressed to the receiving head of state, in language mirroring the original credence.

In standard practice the outgoing ambassador presents the letter of recall personally during a farewell audience, though more often the incoming successor delivers it together with their own letter of credence at the presentation ceremony. Until the letter is presented, the departing envoy technically retains accreditation; afterwards, the chargé d'affaires ad interim runs the mission until the successor presents credentials.

The procedure is rooted in the customary diplomatic law codified by the Vienna Convention on Diplomatic Relations (1961), particularly Article 43, which lists notification by the sending state that the agent's functions have come to an end as one of the ways a diplomatic mission ends. The letter of recall is the operative instrument by which that notification is given at the head-of-mission level.

Recall should be distinguished from two related acts:

• Recall for consultations: a temporary, often political, withdrawal of an ambassador as a diplomatic signal of displeasure; no letter of recall is issued and accreditation continues.
• Persona non grata declaration: an expulsion by the receiving state under Article 9 VCDR, not a withdrawal by the sending state.

Letters of recall are usually courteous in tone regardless of the political climate, expressing appreciation for the envoy's reception. Even during severe bilateral tensions, the document tends to preserve formal civility, since it is also a record exchanged between sovereigns and archived in both foreign ministries.