Skip to main content

form N-648 medical certification for disability exceptions

What kind of disabilities qualify for the waiver citizenship exam?

The specific disabilities that may qualify for a waiver of the citizenship exam are determined on a case-by-case basis. Generally, individuals with physical or developmental disabilities, as well as mental impairments, may be eligible for accommodations or waivers of the citizenship exams.

The disabilities must impair the person’s ability to learn or demonstrate knowledge of U.S. history, civics, or English. Some examples of disabilities that may qualify include intellectual disabilities, certain mental health conditions, physical disabilities that affect reading or writing ability, and certain medical conditions that impact cognition or language skills.

Does Having a Disability Automatically Qualify You for an N-648 Waiver?

A medical diagnosis alone does not guarantee approval. USCIS considers how the condition affects the individual applicant’s ability to satisfy the testing requirements. Age, limited education, difficulty learning English, and ordinary test anxiety do not independently establish eligibility for an N-648 exception. Similarly, someone who can complete the test with reasonable accommodations may not need an exception.

The accommodations or waivers are granted by the U.S. Citizenship and Immigration Services (USCIS). Applicants generally must submit Form N-648, Medical Certification for Disability Exceptions, together with Form N-400, Application for Naturalization. The N-648 is completed by a physician or clinical psychologist who examines the person applying for the waiver.

The licensed psychologist conducts clinical interviews and may administer testing, when clinically appropriate, to establish whether the applicant suffers from any condition that impairs their ability to pass the citizenship exams.

What Is the Difference Between an N-648 Disability Waiver and Citizenship Test Accommodations?

An N-648 exception and a disability accommodation serve different purposes. An approved N-648 excuses an eligible applicant from the English requirement, the civics requirement, or both. An accommodation changes the way an applicant participates without removing the requirement. Depending on their needs, applicants may request a sign language interpreter, additional testing time, or another reasonable adjustment. Someone may need both an exception for one requirement and an accommodation for another.

Can a mentally disabled person become a citizen?

Yes, a person with mental disability can become a citizen of the United States.

To request a medical disability exception, the person with a mental disability must submit an N-648 form to USCIS describing the physical or developmental disability or mental impairment that prevents them from meeting the English and civics requirements.

An approved medical exception removes only the educational requirements covered by the certification. The applicant must still meet the other applicable naturalization requirements, and USCIS must approve the citizenship application. If a disability prevents someone from understanding or communicating an understanding of the Oath of Allegiance, a separate oath waiver may be available. A legal guardian, surrogate, or eligible designated representative may assist qualifying applicants with the naturalization process.

What doctors are eligible to complete form N-648?

Licensed medical doctors, doctors of osteopathy, and clinical psychologists can complete the N-648. These professionals must be licensed in the United States.

These professionals must personally examine the applicant and complete the certification using medically supported findings. Their explanation should identify the relevant condition and describe how it prevents the applicant from satisfying the English or civics requirements. A diagnosis without this connection may be insufficient. Immigration attorneys and other representatives can help prepare an application, but they cannot certify Form N-648 unless they independently hold one of the required medical licenses.

What Happens During an N-648 Psychological Evaluation?

The evaluation begins with a review of the applicant’s medical and personal history, followed by an examination suited to the reported condition. A clinical psychologist may use interviews, behavioral observations, available medical records, and psychological testing when appropriate. Testing is not identical for every applicant; the methods should match the condition being assessed. 

The resulting certification should explain the applicant’s functional limitations in clear language that USCIS officers can understand. USCIS permits telehealth examinations when they meet applicable requirements, although the clinician must still carry out an appropriate personal assessment and comply with relevant licensing rules.

How do immigration psychologists and immigration attorneys work together?

An immigration attorney may recommend a psychological evaluation when an applicant’s condition suggests that a medical disability exception could be appropriate.

Immigration psychologists and immigration attorneys have a working relationship that must protect the independence of opinion and the objectivity of each professional. Immigration psychologists must understand the applicable USCIS certification requirements and use clinically appropriate procedures to produce reliable findings.

An immigration attorney may identify the need for a medical exception and help the applicant organize the naturalization filing. The psychologist, however, must independently decide whether the clinical findings support certification. Sharing accurate application details can help the professionals coordinate, but the attorney should not direct the diagnosis or determine the evaluation’s outcome. Applicants may also arrange an assessment without an attorney’s referral.

How and When Should You Submit Form N-648?

Under USCIS policy effective June 13, 2025, applicants generally must submit Form N-648 together with Form N-400. USCIS may consider a later submission when the applicant provides a credible explanation and supporting evidence showing extenuating circumstances. Planning the evaluation before filing helps avoid preventable delays. Applicants should use the current form edition and check USCIS instructions before submitting their paperwork.

What Happens if USCIS Finds Your Form N-648 Insufficient?

USCIS may find an N-648 insufficient if required information is missing, the certification contains significant inconsistencies, or it does not adequately connect the disability to the testing requirements. Depending on the circumstances, USCIS may request a supplemental certification or additional documentation. Applicants should review any USCIS notice carefully and work with their medical professional to address the specific concerns raised.

How can I contact an immigration psychologist?

Immigration Psychology has a team of licensed psychologists and doctors in psychology serving across the country. If a disability affects your ability to complete the English or civics test, arranging an evaluation can help determine whether medical certification is appropriate. Ask about evaluation availability, the clinician’s licensing, and the information needed before your appointment. 

To learn more about our services and discuss the details of your disabilities and N-648 matters, contact us today to schedule your complimentary consultation.