6.—(1) An applicant who is a party to an agreement must take all reasonable steps to notify all other parties to the agreement of whom he is aware that an application has been made for a decision.
(2) If the conduct to which an application relates is conduct of two or more persons, the applicant must take all reasonable steps to notify all of the other parties of whom he is aware that an application has been made for a decision.
(3) Notification by an applicant under paragraphs (1) or (2) above shall be written and shall be given within seven working days from the date on which the applicant receives acknowledgement of receipt of his application by the Director; the applicant shall provide a copy of the notification to the Director without delay.