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I will review your questions and return to you shortly.
In order to ascertain a better understanding of your question, do you mean CPR rule 23.3?
Thanks for the further information.
It appears CPR 23B section 3 does not exist.
Please see the link below to support my comment:
My answer below is on the assumption you require clarification on CPR rule 23.3(b)
This means that the person who drafts the application should send the application to the court unless the person relies on a specific rule or a court order which permits the applicant from sending the information to the court.