paragraph 333 in volume 3, chapter 22, Proceedings in Chambers
In principle, Article 90 of the Rules provides that proceedings before the chambers shall, subject to the provisions of the Statute and of the Rules referring specifically to chambers, be governed by Articles 1 to 89 of the Rules applicable in contentious cases before the Court. The only relevant provision in the Statute is Article 31, paragraph 4 (concerning the judges ad hoc).
Article 90 is based on Article 70 of the 1946 Rules (Article 75 of the 1972 Rules), with modifications. The 197…