If you have a physical or developmental disability or mental impairment that prevents you from demonstrating your knowledge and understanding of the English language and/or civics requirements for naturalization, you may qualify for an exemption to certain parts of the naturalization test.
You must submit an original Form N-648, Medical Certification for Disability Exceptions which must have been prepared by a licensed medical doctor or licensed clinical psychologist less than 6 months prior to filing Form N-400. The best time to submit this form is with your Form N-400, Application for Naturalization. You are allowed to bring Form N-648 to your interview, but this may delay your case.
To apply for a disability exception, your disability:
- Must be at least 1 year old (or be expected to last 1 year); and
- Must not have been caused by illegal drug use.