The court or tribunal may not make a declaration under regulation 4 unless notice of the proceedings has been given to all the relevant UK authorities in accordance with paragraphs (2) to (6).

The notice must be given to the relevant UK authorities at least 21 days, or such other period as the court or tribunal directs, before the date on which the declaration is made.

The court or tribunal may at any time in the proceedings decide whether notice should be given to the relevant UK authorities.

The notice must be given in the form directed by the court or tribunal.

The notice given to a Minister of the Crown must be served on the person named in the list published under section 17 of the Crown Proceedings Act 1947 M1.

The notice must be served on all the parties.