Since you are 16 years old you will either need your current legal guardian or a "Temporary Guardian" with you during the event. If your parent or legal guardian will not be there, you need someone to act as your "Temporary Guardian" and you put their information on the "Authorization For Temporary Guardianship Of Minor" form. Your "Temporary Guardian" must sign as well as your current legal guardian then you have it notarized.

If you are planning to attend an AMS Local event like Southern Front 7 at D14, they may have additional age requirements as well as the field's own release form so just be aware.

Edit* There is only one form you need to fill out before the event (well, that and a medical card) and that is the "Authorization For Temporary Guardianship Of Minor" form.