Parents who sign up to their school's Classlist must first be approved by a pre-existing 'Ambassador' or 'Class Rep'. The founding member of your school's Classlist site will be the first Ambassador, and they are able to assign other parents to help them. These will typically be parents who are active within the school-community or PTA already. The approval process exists to add an extra layer of security to your Classlist site, making sure that the only people visiting your site are people you know and trust.
Ambassadors, Class Reps and potentially a member of the school admin staff are responsible for approving parents and making sure all applications are genuine. This process is generally done in an efficient manner, involving basic checks relating to contact details. Classlist offers plenty of support and advice to those involved in the approval process to ensure that it is done in a safe, secure and efficient manner.