Quick answer
What is USCIS Form N-648 used for?
Use this form if you are applying for U.S. citizenship and need to request an exception to the English and civics testing requirements for naturalization because of physical or developmental disability or mental impairment.
What to prepare before filling N-648
- 01
Confirm that Form N-648, Medical Certification for Disability Exceptions, matches the specific benefit, request, verification, or record you need.
- 02
Download the current Form N-648 and its separate instructions from USCIS, then compare the edition date before typing any answers.
- 03
For Form N-648, collect the identity records, receipt or account numbers, dates, addresses, and prior immigration documents that support your answers.
- 04
For Form N-648, prepare the travel, residence, marital, tax, selective-service, and character records that apply to the relevant eligibility period.
Current official filing details
The details below are condensed from the USCIS page reviewed on 2026-07-26. Follow the official page and instructions if they differ from this snapshot.
Edition date
09/25/24. You can find the edition date at the bottom of the page on the form and instructions.
Where to file
You may submit this form with your completed Form N-400, Application for Naturalization, or separately at a later date.
Filing fee
You can find the filing fee for Form N-648 by visiting our Fee Schedule page.
USCIS filing tips
Filing Tips: Review our Tips for Filing Forms by Mail page for information on how to ensure we will accept your application.
Special instructions
Protect Yourself from Scams in the N-648 Process USCIS does not want you to become the victim of an immigration scam involving fraudulent medical certifications for disability exception. You can read about criminal prosecutions of individuals involved in scams related to Form N-648 including Dr.
Chilakamarri Ramesh; Habeeb Malik, Dr. Ira Weiner, and Dr.
Thongchai Vorasingha; Dr. Roberto J.
Velasquez; Dr.Fernando Mendez-Villamil; Julia Nguyen; Dr. Muhammad S.
Awaisi; and Firoza Van Horn. When you seek a medical certification for disability exception because of a physical or developmental disability or mental impairment that prevents you from learning English and civics, please keep in mind the following: There is no filing fee for Form N-648.
However, a medical professional may charge a fee for a medical examination and for filling out forms. Only a medical doctor, doctor of osteopathy, or clinical psychologist licensed to practice in the United States may certify Form N-648.
You may contact your state medical board to determine whether the medical professional has a valid license.
Official N-648 downloads and filing links
Clerks AI PDF skill
Prepare the PDF from your source documents
Add the blank N-648 PDF and your records. Clerks AI helps ChatGPT or Claude Code map supported facts to fields and flag missing information for review. You still decide eligibility, verify every answer, and follow USCIS filing rules.
Get the AI PDF filling skillUSCIS Form N-648 FAQ
What is Form N-648 used for?
Use this form if you are applying for U.S. citizenship and need to request an exception to the English and civics testing requirements for naturalization because of physical or developmental disability or mental impairment.
How much does Form N-648 cost?
You can find the filing fee for Form N-648 by visiting our Fee Schedule page.
Can I file Form N-648 online?
The USCIS all-forms directory does not list a general online filing option for this form. Follow the official page for the required filing method.
Related USCIS form guides
Citizenship & naturalization
Form N-400
Application for Naturalization
Citizenship & naturalization
Form G-845 Supplement
Verification Request
Citizenship & naturalization
Form G-1651
Exemption for Paper Fee Payment
Citizenship & naturalization
Form I-129CW
Petition for a CNMI-Only Nonimmigrant Transitional Worker
Citizenship & naturalization
Form I-765
Application for Employment Authorization
Citizenship & naturalization
Form I-956
Application for Regional Center Designation
Source: U.S. Citizenship and Immigration Services. Independent guide by Clerks AI; not affiliated with USCIS and not legal advice.
Last researched 2026-07-26. Recheck the official page before filing.