Paragraph 1
If a party to a dispute such as is mentioned in subsection (1) of section 20 above serves on the other party or parties to the dispute, at a time when no proceedings relating to it have been commenced in any court, a notice that he wishes the dispute to be determined by arbitration, the Secretary of State shall by order establish a tribunal to determine the dispute and any other dispute such as is mentioned in subsection (2) of that section.