Both parents and the child are required to appear to submit the application through a pre-arranged appointment. The appointment should be scheduled in the child’s name. One appointment for one child. (Two children = two appointments.)
Do not worry if you cannot print the confirmation page: it is not required to enter AIT. The guards will have a list of people with appointments and will simply ask for your photo ID.
You can expect to be at AIT for approximately two hours depending on the number of customers. Please be aware that wait times are longer for first time applicants and Consular Reports of Birth Abroad.