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Form C100 is used in England and Wales for applications for a child arrangements order, a specific issue order or a prohibited steps order, and certain applications to change or end an order. A child arrangements order concerns where a child lives and their time or contact with others. A specific issue order can address a particular question, such as schooling.
Where mediation comes into it
The C100 asks about mediation. In most cases the court expects an applicant to have attended a MIAM before the application is made, unless one of the recognised exemptions applies. The form is where you set out which of those is the case.
What attending a MIAM means for the form
If you attend a MIAM and mediation does not go ahead – because it is not suitable, or the other person declines – the mediator can sign a certificate confirming your attendance. That is the evidence the court is looking for.
If mediation does go ahead and you reach agreement, you may not need the application at all.
What we can and cannot do
We can hold the MIAM, assess whether mediation is suitable, and issue the certificate. We cannot advise you on whether to make an application, complete the form for you, or decide that an exemption applies to your circumstances. Those are matters for you and your solicitor.
Check the current requirements
Court forms and the rules around them change. Take the current position from GOV.UK or from your solicitor rather than from any website’s summary, including this one.
Checked on 1 October 2026 against the official C100 guidance. Exemptions and urgent applications need separate consideration; do not delay urgent legal protection to book a MIAM.
This page is general information about family mediation. It is not legal advice about your own situation.