Paragraph 11 I1

Any dispute arising between the undertaker and the relevant drainage authority under this Part, if the parties agree, must be determined by arbitration under article 42 (arbitration) but otherwise must be determined by the Secretary of State for Environment, Food and Rural Affairs or its successor and the Secretary of State for Energy Security and Net Zero or its successor acting jointly on a reference to them by the undertaker or the relevant drainage authority, after notice in writing by one to the other.