The State Education Assistance Authority is the primary and sole authority to conduct residency determination for the state of North Carolina. This service enables a student to use one residency determination for when applying to multiple North Carolina public colleges and universities.You should make a domicile certificate, i don't have any experience regarding counselling but still its wise to make a domicile certificate. North Carolina Residency. The Residency Determination Service (RDS) is the centralized system in North Carolina for determining residency for students. To claim the home state quota, students must submit several key documents. How Do I Fill Out an Affidavit of Domicile?