but has a N-600 citizenship interview on March 1. Sleepingtiger said we should file I-90 for him and give the form back at the oath ceremony but I don't think he needs to go to the oath ceremony since he is only 15. The interview is for N-600. Is it ok if he just goes with his dad with a copy of his greencard? I don't think we have enough time to file I-90. Please help, thanks.