The boundary between Israel and Jordan was formally settled in the Israel–Jordan Peace Treaty, signed on 26 October 1994.
Key Points about the treaty:
It established mutual recognition and full diplomatic relations between the two states.
Article 3 of the treaty defines the international boundary, confirming it as the recognized, permanent border.
The boundary follows the lines of the Mandate-era administrative boundary between the British Mandate of Palestine and the Emirate of Transjordan (1920s–1946).
It also specifies arrangements regarding the Jordan River, the Dead Sea, the Wadi Araba, and land/water use.
👉 In short: the 1994 Israel–Jordan Peace Treaty is the accord that officially settled the border limits between the two countries.
Do you want me to show you a map with the boundary as defined in the treaty for clarity?