To get a domicile certificate you need to apply in yout district court. This required me to fill out AZ DOT form 960143 for a specialty plate.You should make a domicile certificate, i don't have any experience regarding counselling but still its wise to make a domicile certificate. If you do NOT consider yourself domiciled in Arizona, present this form after completing Part 1 and Part 2 and signing at the bottom of Part 5 on the fifth page. Foreign nationals are eligible to apply if they have lived in the United States for at least three years immediately preceding the application deadline.