Provisional Rules of Procedure
Chapter VIII: Languages
Arabic, Chinese, English, French, Russian and Spanish shall be both the official and the working languages of the Security Council.
Speeches made in any of the six languages of the Security Council shall be interpreted into the other five languages.
Any representative may make a speech in a language other than the languages of the Security Council. In this case, he shall himself provide for interpretation into one of those languages. Interpretation into the other languages of the Security Council by the interpreters of the Secretariat may be based on the interpretation given in the first such language.
Verbatim records of meetings of the Security Council shall be drawn up in the languages of the Council.
All resolutions and other documents shall be published in the languages of the Security Council.
Documents of the Security Council shall, if the Security Council so decides, be published in any language other than the languages of the Council.