Recht der Vereinigten Staaten
Koh was elected to the American Law Institute in 1992 and was elected to the ALI Council in 2007. He stepped down from the Council when he worked for the Obama administration, but was re-elected to Council when he ended his tenure with the State Department and returned to Yale. He currently serves as a Counselor on the Restatement Fourth, the Foreign Relations Law of the United States, and previously served as an Adviser on the Principles of Transnational Civil Procedure project.