The Chairman must allow any member of the Examining or Opposition Division who so requests to put questions. He may determine at which point in the proceedings such questions may be put.

In oral proceedings, questions may be put to the parties in connection with their statements or the discussion of the facts or of the legal position. When evidence is taken as part of oral proceedings questions may also be put to the witnesses, parties and experts called. As regards the right of the parties to put questions, see IV, 1.6.7.