Medical Certification for Disability Exceptions

Purpose of Form

This form is intended for applicants for U.S. citizenship who seek an exception to the English and civics testing requirements for naturalization “because of physical or developmental disability or mental impairment.”

Number of Pages

Form 6; Instructions 3.

Edition Date

12/07/12. (06/17/11 version also accepted.)

Where to File

Should be submitted along with a completed N-400, Application for Naturalization

Filing Fee


Special Instructions

View the N-648 instructional video to assist in the completion of this form.

USCIS also produced a presentation Training for External Stakeholders for Form N-648.

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