Form N-648 | Medical Certification for Disability Exceptions
Purpose of Form
If you want to become a citizen of the United States of America in the future, you have to pass special exams, including an English language exam and American civics exam. It’s the obligation of all people who apply for naturalization. However, there are some exceptions which can give you a possibility to avoid these exams. For example, people who have developmental or physical challenges can find very difficult to pass this exam, that’s why the US government allows you to waive the examination requirements if you can prove your status. It’s only allowed for people who have mental impairment, developmental disability, or physical disability.
Special Instructions
If you want to use this opportunity, a licensed clinical psychologist has to submit a USCIS Form N-648 (Medical Certification for Disability Exceptions). It has to be submitted with Form N-400.
Related
Download form N-648
/resource/download-form-n-648/amp/
How Much Time Does It Take to Become a U.S. Citizen?
/blog/how-much-time-does-it-take-to-become-a-u-s-citizen/amp/
What is the purpose of Form I-90?
/faq/what-is-the-purpose-of-form-i-90-or-usa-immigration/amp/
What It Costs to Become a U.S. Citizen: Fees and Financial Assistance
/blog/what-it-costs-to-become-a-u-s-citizen-fees-and-financial-assistance/amp/
Recent posts
Form I-20 and I-901 SEVIS Fee Before the F-1 Visa Interview
A pre-interview guide for F-1 students covering Form I-20 review, SEVIS fee timing, payment basics, and the documents students commonly prepare before the visa interview.
OPT vs. CPT vs. STEM OPT: Differences, Rules, and How to Choose
A practical comparison guide for F-1 students deciding between CPT, OPT, and STEM OPT, with official rule-based distinctions and common filing pitfalls.
ESTA vs. B-2 Visa: Who Needs ESTA and Who Needs a Visa?
A clear comparison of ESTA and the B-2 visa, designed for travelers deciding which path fits their nationality, travel purpose, and length of stay.
Form I-539: Extend Stay or Change Status in the U.S.
A practical guide to Form I-539, including eligibility, timing, filing strategy, supporting evidence, online filing considerations, and common mistakes.
How to Fill Out Form DS-160 Step by Step
A practical DS-160 guide for nonimmigrant visa applicants, including preparation, section-by-section steps, post-submission actions, and common mistakes.
USCIS Processing Times (2026): How to Check Them and What They Really Mean
Learn how to check USCIS processing times correctly, understand what the posted number actually means, compare service centers and field offices, and know when your case is truly outside normal processing time.