You can access your Membership settings via the 'Membership' module in the admin area and clicking 'Settings' in the top right corner:
In the membership settings your can add a confirmation for your members after they have signed up:
And your membership T&C's:
When your members first sign into the system, they will have to accept your T&C's in order to become registered. They will need to be registered in order to apply for a membership, book a court etc.