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Form N 648

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Form N-648, Medical Certification for Disability Exceptions, is a form used by United States Citizenship and Immigration Services. It is completed by individuals going through the citizenship process if they want to seek an exemption from the English and civics testing required for US citizenship. The person requesting the exemption must have a physical or developmental disability or mental condition that is expected to last more than 12 months. This form must be certified by a licensed medical doctor before it can be submitted.

Form N 648

Related Documents

Form 540 › Form 8109-B › Form 8109-B ›

What is an N 648?

This form is used by the USCIS, or the United States Citizenship and Immigration Services. Form N-648 is known as a Medical Certification for Disability Exceptions form. This form is required for those who wish to seek exemption from English and civics testing required for applicants seeking U.S. citizenship due to physical or developmental disability or mental impairment that has lasted or is expected to last over 12 months.
This form must be certified by a licensed medical professional in order for it to be submitted. This means that an in-person examination of the applicant is required. In additional to the applicant’s personal information, the medical professional will need to include their name, business address, and license information. Both parties will need to sign the completed form before it is submitted for review.

How to complete an N 648 (Step by Step)

To complete a Form N-648, you will have to provide the following information:

  • Part 1. Applicant Information
    • Name
    • USCIS A-number
    • Address
    • U.S. Social security number
    • Telephone number
    • Email address
    • Date of birth
    • Gender
  • Part 2. Medical Professional Information
    • Name
    • Business address
    • Telephone number
    • License number
    • Licensing state
    • Email address
    • Current licenses: medical doctor, doctor of osteopathy, clinical psychologist
    • Medical practice type
  • Part 3. Information About Disability and/or Impairment(s)
    • Clinical diagnosis of applicant’s disability or impairment
    • Relevant medical code accepted by the Department of Health and Human Service including Diagnostic and Statistical Manual of Mental Disorders (DSM) and the International Classification of Diseases (ICD)
    • Description of disability and/or impairments
    • Date and location of first examination
    • Date and location of last examination
    • Whether you are the medical professional regularly treating the applicant for the listed conditions
    • Duration of treatment or name and contact information of applicant’s regularly treating medical professional
    • Whether the applicant’s disability and/or impairments lasted or you expect it to last 12 months or more
    • Whether the applicant’s disability and/or impairments were the result of the use of illegal drugs
    • Cause of applicant’s medical disability and/or impairments
    • Clinical methods used to diagnose applicants medical disability and/or impairments
    • Explanation of how the applicant's disability and/or impairments affect the ability to demonstrate knowledge and understanding of English or civics
    • Whether applicant’s disability or impairments prevent him or her from demonstrating the ability to: read English, write English, speak English, answer questions regarding U.S. history and civics
    • Whether an interpreter was used during the examination
  • Medical Professional’s Certification
    • Whether the medical professional is fluent in another language spoken by the patient
    • Certification that applicant’s identity has been verified through a United States or State government-issued photographic identity document
    • Signature
    • Date
  • Interpreter’s Certification
    • Name
    • Address
    • Whether interpreter was used
    • Certification of fluency
    • Signature
    • Date
  • Applicant (Patient) Attestation/Release of Information
    • Authorization for medical professional to release medical records to U.S. Citizenship and Immigration Services
    • Signature 
    • Date

How will a USCIS interviewer approve or deny a disability waiver

A USCIS interviewer is likely to review the request for a disability waiver during the naturalization interview at the same time that he or she interviews the applicant.

The USCIS will look at the following factors when reviewing the form:

  • Whether the applicant filled out the correct version of the form
  • Whether the medical professional filled out all sections of the form completely in non-technical language
  • Whether there is a clear connection between the applicant’s disability and his or her inability to learn English or U.S. history and physics
  • Whether N-648 or the applicant show any signs of fraud 

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Form N-648

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Form 540

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Form 8109-B

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Form 8109-B

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