The work of the Conference on International Organization (UNCIO) was organized into a Secretariat and 4 Commissions, each assigned a specific area: Commission I, General Provisions; Commission II, General Assembly; Commission III, Security Council; Commission IV, Judicial Organization. Each Commission in turn was broken into a number of Technical Committees and Subcommittees. Above this work structure sat the Executive and Steering Committees, and the Plenary Sessions. Organizational charts are in Vol. 1 of the UNCIO Documents, pp. 79-85.
The working of the Conference, and of the organizing, naming, producing, and distribution of conference documents, is described by William Bruce in The San Francisco UNCIO Documents, The American Archivist (January 1946) Vol. 9, No. 1, pp. 6-16. The published documents are outlined below, and PDF versions can be viewed on-line and downloaded.