Sixth Committee: The Legal Conscience of the UN
How the Sixth Committee shapes international law through codification, treaty negotiation, and the consensus-driven craft of legal drafting at the UN General Assembly.
The Mandate Under Article 13(1)(a)
The Sixth Committee is the primary forum in which the General Assembly discharges its responsibility under Article 13(1)(a) of the UN Charter to initiate studies and make recommendations for "the progressive development of international law and its codification." Established at the First Session in London in January 1946, it is one of the six Main Committees of the General Assembly and the only one dedicated exclusively to legal questions. Every Member State is entitled to representation, and decisions are taken by simple majority under Rule 125 of the Rules of Procedure of the General Assembly — though in practice the Committee operates almost entirely by consensus, a working method that distinguishes it from the more politically charged First and Third Committees.
Delegations to the Sixth Committee are typically led by legal advisers from foreign ministries (the "Legal Adviser circuit"), supplemented by academics, military lawyers for IHL items, and capital-based experts for technical agenda items such as crimes against humanity or state responsibility. The Office of Legal Affairs (OLA), through the Codification Division, serves as substantive secretariat and prepares the analytical studies, compilations of State practice, and topical summaries that drive negotiation.
Relationship with the International Law Commission
The Committee's defining institutional partnership is with the International Law Commission (ILC), the 34-member expert body created by GA Resolution 174 (II) of 21 November 1947. Each autumn the ILC Chair presents the Commission's annual report (an "A/[session]/10" document) to the Sixth Committee, which then conducts a clustered debate on the topics under study. The resulting compendium of State views — issued as a Secretariat topical summary — is the most authoritative real-time evidence of opinio juris available to scholars and litigators. The ICJ has cited Sixth Committee statements in cases including Jurisdictional Immunities of the State (Germany v. Italy, 2012) and Questions relating to the Obligation to Prosecute or Extradite (Belgium v. Senegal, 2012).
The Committee then decides the fate of completed ILC drafts. Three pathways recur. First, transmission to a diplomatic conference, as with the 1958 Geneva Conventions on the Law of the Sea, the 1961 Vienna Convention on Diplomatic Relations, the 1969 Vienna Convention on the Law of Treaties, and the 1998 Rome Statute. Second, adoption as an annexed General Assembly declaration with the recommendation that States consider a future convention — the path taken for the 2001 Articles on Responsibility of States for Internationally Wrongful Acts (GA Res. 56/83) and the 2006 Articles on Diplomatic Protection (GA Res. 62/67), both of which remain in indefinite "taking note" limbo. Third, deferral or shelving, the fate of the 1996 Draft Code of Crimes Against the Peace and Security of Mankind once the Rome Statute superseded its core provisions.
This third pathway is not a failure but a feature. The Articles on State Responsibility, though never opened for signature, are routinely treated as customary international law by the ICJ (Gabčíkovo–Nagymaros, 1997; Bosnian Genocide, 2007) and by investment tribunals. A delegate weighing whether to push for a convention must therefore weigh the gain of binding treaty text against the risk of reopening hard-won compromises and producing a poorly ratified instrument — the cautionary precedent being the 1997 Convention on the Law of the Non-Navigational Uses of International Watercourses, which took 17 years to enter into force.