Naturalization applicants who cannot meet the English or civics test requirements because of a physical or developmental disability or mental impairment request an exception with Form N-648. A licensed medical professional examines the applicant and certifies the diagnosis, explains how the condition prevents them from meeting those requirements, and addresses whether the applicant can understand the oath.
A medical doctor, doctor of osteopathy or clinical psychologist licensed in the United States completes Parts 2 to 4 and the Part 7 certification. The applicant signs the Part 6 attestation and release of information; a guardian or surrogate may sign for an applicant who cannot.
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Medical Certification for Disability Exceptions
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Only a medical doctor (MD), doctor of osteopathy (DO) or clinical psychologist licensed to practice in the United States. Applicants can check the professional's license with their state medical board. The professional must examine the applicant in person or, where state law allows, by real-time telehealth.
There is no USCIS filing fee for the N-648. The medical professional may charge for the medical examination and for completing the form. The applicant files it with Form N-400 or submits it later, and must sign the attestation or USCIS will reject the form.