Form N-648 is the medical certification an N-400 naturalization applicant submits to ask for an exception to the English requirement, the civics requirement, or both, when a physical or developmental disability or mental impairment leaves them unable to meet those requirements; USCIS decides whether the certification is sufficient. It is authorized by Immigration and Nationality Act (INA) section 312(b) and 8 C.F.R. 312.2(b). Only a licensed medical doctor (MD), doctor of osteopathic medicine (DO), or licensed clinical psychologist can sign the form; a licensed clinical social worker (LCSW) or licensed marriage and family therapist (LMFT) license alone is not enough. The condition must have lasted or be expected to last at least 12 months, the form must explain the nexus (link) between the impairment and the inability to learn or show the knowledge, and a recent USCIS policy update tightened how officers review the form (it is now generally filed together with the N-400, among other changes).
Form N-648 is the disability-based pathway to United States citizenship for naturalization applicants whose physical, developmental, or mental impairments prevent them from learning English or civics. The exception comes from the statute, Immigration and Nationality Act (INA) § 312(b)(1). United States Citizenship and Immigration Services (USCIS) has recently changed how officers review the form.
Only a licensed medical doctor, doctor of osteopathy or clinical psychologist can sign the form, and under current guidance the list of reasons an officer may doubt a form ends with a catch-all: "any other credible reasons supported by the record that call into question the validity of the form." This guide covers what attorneys and evaluators need to know to work through that. Related reading: the good moral character letter guide (totality-of-circumstances review also applies at N-400), the criminal convictions and immigration evaluation resource for applicants with records, and the cancellation of removal guide for those not yet eligible to naturalize. Here are the questions attorneys and families ask most often.
who can sign the form
or be expected to last
In This Guide
- What is the N-648 disability waiver?
- Who can sign Form N-648?
- What changed in USCIS's review of the form?
- What conditions qualify for the N-648 exemption?
- What does the evaluation process look like?
- Why are N-648s found insufficient?
- How do you establish the nexus between disability and inability to learn?
- What about the concurrent filing requirement?
- What happens if the N-648 is denied?
- N-648 fraud: what USCIS is watching for
- Telehealth and interpreter guidance
- Step-by-step: how to work with a psychologist on the N-648
- N-648 case examples (composite)
- Frequently asked questions
What is the N-648 disability waiver?
The N-648 disability waiver is a USCIS medical certification that asks for an exception to the English and civics requirements when a physical or mental impairment prevents the applicant from meeting them; USCIS decides. Only a medical doctor, doctor of osteopathy, or licensed clinical psychologist may sign Form N-648. The condition must have lasted or be expected to last 12 months, and the form must explain the link.
To become a U.S. citizen, you normally have to pass an English test and a civics test. Form N-648 is how you ask for an exception to those tests when a disability or impairment keeps you from learning the material. It's a medical certification, completed by a licensed medical doctor, doctor of osteopathy, or licensed clinical psychologist, and USCIS decides whether it is enough. The form explains how the condition keeps you from meeting the English requirement, the civics requirement, or both, and that it has lasted or is expected to last at least 12 months. Congress created this right in 1994 and codified it at 8 U.S.C. 1423(b), with implementing regulations at 8 CFR 312.2. The current edition of the form, the instructions, and the fee schedule live at the USCIS Form N-648 page. The Policy Manual tells applicants to use the edition listed on that page.
"I can't learn English" isn't enough on its own. USCIS wants a "medically determinable" impairment that can be shown by medically acceptable clinical or laboratory diagnostic techniques, not your word for it (8 CFR 312.2(b)). Three more rules apply:
- Duration: The impairment must have lasted or be expected to last at least 12 continuous months.
- Drug exclusion: The loss of cognitive skills cannot be the direct result of illegal drug use.
- Beyond accommodation: Under 8 CFR 312.2(b)(1), you must be unable to show the required knowledge "even with reasonable modifications" to testing. This separates the N-648 from mere disability accommodation.
The N-648 can exempt you from the English requirement, the civics requirement, or both. The medical professional can also indicate that you cannot understand or communicate an understanding of the Oath of Allegiance; USCIS then follows its process for legal guardians, surrogates or designated representatives.
Use the current edition of the form from USCIS's N-648 page; the expiration date printed on a form is not a promise of how long USCIS accepts that edition. Adjudication guidance lives in USCIS Policy Manual Volume 12, Part E, Chapter 3; a recent update rewrote much of it.
Important distinction: The N-648 asks for an exception to the English requirement, the civics requirement, or both, depending on what the certification supports. It is not a request for accommodations like extra time, large print, or a sign language interpreter. Those are reasonable accommodations, requested separately; the Policy Manual says Form N-648 is not used to request one, and you can ask for both where both are needed. If accommodations would let someone meet the English and civics requirements, an N-648 is not appropriate; the exception is for someone who cannot meet them even with reasonable accommodations.
Who can sign Form N-648?
Three professionals can legally sign Form N-648: licensed medical doctors (M.D.), doctors of osteopathy (D.O.), and licensed clinical psychologists. The rule is codified at 8 CFR § 312.2(b)(2) and it's non-negotiable. Other licenses are not on the list, whatever the specialty or experience: a licensed clinical social worker (LCSW), marriage and family therapist (LMFT), nurse practitioner or physician assistant license alone does not authorize signing. A form signed on any other license does not meet the requirement, so the applicant would still face the English and civics requirements unless a valid N-648 is submitted.
- Medical Doctors (M.D.)
- Doctors of Osteopathy (D.O.)
- Clinical Psychologists licensed to practice psychology in the United States
A license as a Licensed Clinical Social Worker (LCSW), Licensed Marriage and Family Therapist (LMFT), Licensed Professional Counselor (LPC), Nurse Practitioner (NP) or Physician Assistant (PA) is not enough by itself.
Check the certifier first. A licensed clinical social worker, marriage and family therapist or counselor license alone does not authorize certifying the N-648, and a form signed by the wrong professional can cost weeks or months, while the time limit for signing may run out. Verify the evaluator is one of the three listed professionals, with an active license, before you schedule anything.
Why the evaluator's training matters for N-648 evaluations
Any licensed M.D. or D.O. can complete the form, as can a licensed clinical psychologist. The regulation asks for a diagnosis made with medically acceptable clinical or laboratory diagnostic techniques (8 CFR 312.2(b)); it does not require one particular test battery. For cognitive and mental health conditions, a psychologist's standardized testing and diagnostic interview are one way to document the impairment and the link to learning.
The regulation says the certifying professional "shall be experienced in diagnosing those with physical or mental medically determinable impairments" (8 CFR 312.2(b)(2)). An LCSW or LMFT license alone does not authorize signing the form, but their treatment records can be part of what the evaluator reviews.
What changed in USCIS's review of the form?
USCIS issued a policy alert that tightened how officers review Form N-648, with more attention to whether certifications are accurate and to fraud. It generally applies to applications filed after it was issued; if you filed earlier, ask your attorney which guidance applies.
If this sounds intimidating, take a breath. The form itself hasn't changed. What changed is how carefully USCIS reads it. A careful, specific N-648 is still the way to ask for the exception.
Key changes
- Filing with the N-400. The N-648 is generally to be filed with the N-400; a later one may be accepted only in limited circumstances, such as a disability that developed, or got worse, after the N-400 went in.
- Diagnosis is not the whole showing. An officer can accept the diagnosis and still find the form insufficient if it does not explain how the condition prevents the person from meeting the requirements.
- More reasons to doubt a form, including a catch-all for other credible reasons in the record.
- Multiple forms. If more than one N-648 is submitted, the officer may question them, especially forms from different professionals with inconsistent findings.
- Interpreters. An interpreter suspected of involvement in immigration fraud is one of the listed reasons to doubt a form.
A complete first submission is best. USCIS's Form N-648 page lists the edition it accepts; check that page before filing.
What conditions qualify for the N-648 exemption?
There is no exhaustive list of qualifying conditions. Any medically determinable impairment can support an N-648 if the certification shows that it keeps you from learning, or showing what you know of, English, civics, or both. The key isn't the diagnosis. The key is the functional impact on the specific cognitive skills required for language acquisition and factual learning.
Neurocognitive disorders
Alzheimer's disease, vascular dementia, Parkinson's disease with cognitive decline, and major neurocognitive disorder from any etiology can produce documented impairments in memory, attention, and executive function. Scores on cognitive screening tests such as the MoCA give the adjudicator concrete numbers, read together with the history and the rest of the evaluation.
Intellectual disability
Generally requires significant limits in intellectual functioning and in everyday adaptive skills, starting in the developmental period, shown by standardized testing and clinical assessment. The condition is lifelong, although supports can help. And it directly affects the ability to acquire academic-type knowledge.
PTSD with cognitive impairment
A PTSD diagnosis by itself does not explain the inability to learn. The form has to explain, for this person, how the symptoms prevent them from meeting the English or civics requirements, for example how hyperarousal affects attention or how intrusive memories interrupt study, as far as the testing and history support it. Treatment history matters: if you have received therapy, medication, or both and the cognitive problems continue, the evaluation records that, along with any neuropsychological testing.
Other qualifying conditions
- Traumatic brain injury (TBI) with residual cognitive deficits
- Stroke with aphasia or cognitive sequelae
- Severe chronic depression with documented cognitive impairment
- Schizophrenia and schizoaffective disorder
- Autism spectrum disorder
- Chronic medical conditions such as poorly controlled diabetes, seizure disorders (particularly with cognitive side effects from anticonvulsant medications), and cardiovascular disease with cognitive effects
What does not qualify
- Advanced age alone is not a qualifying condition. Some older applicants who have been permanent residents for many years are already exempt from the English requirement and can take civics in their own language; for them, the N-648 question is about civics. Your attorney can tell you whether an age exemption applies.
- Illiteracy without a co-occurring cognitive impairment
- Lack of educational opportunity alone
- A language barrier without an underlying disability
- Psychiatric conditions without the required impairment: conditions that do not keep the person from learning English or civics, or that have not lasted and are not expected to last at least 12 months
What does the evaluation process look like?
A defensible N-648 under current guidance takes more than a brief clinical encounter and a signed form. Treat the evaluation as a forensic assessment with legal consequences, not a routine clinical appointment. A full evaluation usually has three phases.
Phase 1: Clinical interview
The interview should cover psychiatric and medical history, developmental history and educational background, immigration and trauma history, cognitive complaints and functional limitations, daily life and employment, prior attempts to study English or civics and how those went, and behavioral observations during the interview itself (orientation, attention, language use, affect, cooperation). Collateral from family members or caregivers strengthens the evaluation, especially when cognitive limitations make self-report unreliable.
Phase 2: Cognitive and neuropsychological testing
USCIS does not mandate specific instruments. Formal testing, where it fits, can add quantitative evidence. The battery should fit the presenting concerns and be given in your native language or with a professional interpreter.
| Test Category | Instruments | N-648 Application |
|---|---|---|
| Cognitive Screening | MoCA, MMSE, RUDAS | Baseline cognitive impairment. MoCA superior for mild impairment detection. A MoCA score below 26 (the original cutoff) suggests possible impairment that needs fuller assessment; screening results are read against age, education and cultural norms. |
| Intelligence | WAIS-IV | Full-Scale IQ, Working Memory, Processing Speed. Standardized assessment of intellectual functioning; a diagnosis also considers adaptive functioning and developmental history. Identifies specific deficits in retaining new information. |
| Memory | WMS-IV; Boston Naming Test (word-finding) | WMS-IV measures learning and recall of new information; the Boston Naming Test measures naming and word-finding. Both can be relevant to learning and using English vocabulary and civics facts. |
| Executive Function | Trail Making Test A & B, D-KEFS | Attention, processing speed, cognitive flexibility. Can show executive dysfunction in PTSD, TBI, and vascular neurocognitive disorders. |
| Psychiatric | PHQ-9, GAD-7, PCL-5 | Documents severity of depression, anxiety, and PTSD. Documents psychiatric symptoms alongside the cognitive findings. |
| Performance Validity | TOMM | The Test of Memory Malingering (TOMM) is a validity measure that screens for insufficient effort during testing. |
Performance validity testing has become especially important. An effort measure addresses the question of whether the person was trying their best. When the TOMM is passed, report it directly: "Performance validity testing (TOMM Trial 2 = 49/50) indicated adequate effort, supporting the validity of the present results."
Phase 3: Medical records review
The evaluator should review all available medical records, prior psychological evaluations, medication history, treatment records, and any prior N-648 attempts plus the reasons they were denied. A cross-check against the I-693 medical examination matters: the Policy Manual lists an earlier Form I-693 with medical records showing no history of the condition now claimed as a credible reason for an officer to doubt the N-648. If the I-693 shows no mental health history but the N-648 claims a longstanding impairment, the evaluator has to explain that gap up front, not wait for an officer to ask.
Why are N-648s found insufficient?
The Policy Manual says an N-648 is insufficient if it omits required information, contains material inconsistencies, or shows fraud indicators. Common problems include a weak nexus between the disability and the inability to learn English or civics, generic language instead of individualized clinical reasoning, a missing DSM-5-TR or ICD diagnosis, or a form edition or signature date that does not meet the rules. Strong N-648s use specific, person-centered clinical reasoning instead of templates and tie the diagnosis directly to the cognitive demands of the naturalization test under INA 312. A well-prepared evaluation answers every point below before it leaves the desk.
- Insufficient nexus. The evaluator did not clearly explain how the disability specifically blocks learning of English and civics.
- Boilerplate or template language. Generic, cut-and-paste prose with nothing person-specific. The Policy Manual asks for an explanation "sufficiently detailed and tailored to the individual."
- Inconsistency with the I-693. The green card medical exam shows no history of the condition now claimed on the N-648.
- Inadequate diagnostic methods. No description of the clinical or laboratory techniques that produced the diagnosis.
- Incomplete form. Missing signatures, required information left out, a diagnosis that is not described (missing codes alone are not a reason if the diagnosis is described), or no answer to the drug exclusion and 12-month duration questions.
- Vague medical terminology. Jargon without a plain-language explanation of cognitive impact.
- Inconsistency with interview observations. You show abilities during the USCIS interview that look inconsistent with the claimed disability.
- Unauthorized signer. The form was filled out by someone other than an M.D., D.O., or licensed clinical psychologist.
- Stale form. Signed too long before the N-400 was filed.
- Late filing without justification. An N-648 filed after the N-400 without extenuating circumstances.
Answer every question on the N-648 that applies. A form that leaves out required information can be found insufficient. The Policy Manual asks the medical professional to use common terminology that a person without medical training can understand.
How do you establish the nexus between disability and inability to learn?
The nexus explanation is required, and current guidance reaffirmed it. The medical professional must explain how the disability or impairment prevents you from learning or showing knowledge of English, civics, or both, and the Policy Manual wants that explanation "sufficiently detailed and tailored to the individual." Not just that the disability exists. Not just that it makes learning "difficult."
Vague versus specific
A line such as "might affect learning" gives the officer little to weigh. The evaluator states plainly what the testing and history show the person can and cannot do, and only what they show; when there are several conditions, the report explains how each one affects learning.
How to build a defensible nexus
The nexus has to connect specific symptoms to specific cognitive processes to specific naturalization tasks:
- Memory impairment linked to the inability to retain vocabulary and civics facts
- Attention deficits linked to the inability to sustain focus during instruction or follow multi-step verbal directions
- Executive dysfunction linked to the inability to organize information, shift between topics, or plan study strategies
- Processing speed deficits linked to the inability to handle verbal questions in a real-time interview
The evaluator also has to address whether you could meet the requirements "even with reasonable accommodations" like extended time, oral administration, or modified testing conditions. Skip that element and you invite an insufficiency finding.
Weak versus strong nexus language
| Diagnosis | Less detailed (example) | More detailed (example) |
|---|---|---|
| PTSD | "The applicant has severe trauma from the war, which makes them anxious during tests and unable to focus on learning English." | "[Name]'s PTSD includes persistent hyperarousal and intrusive memories. On testing, [name] scored [scores] on attention and memory measures and could not recall new English words or civics facts after repeated practice. These difficulties have continued through 18 months of psychiatric treatment." |
| Dementia | "The applicant suffers from dementia and forgets things constantly, making studying the civics questions too difficult." | "A MoCA score of 12/30 documents marked difficulty in delayed recall and working memory. The evaluation explains how those findings affect the person's ability to encode, retain, and retrieve English vocabulary and civics information, including why ordinary testing accommodations may be insufficient." |
| Intellectual Disability | "The patient has lifelong low intelligence and cannot read or write, so they cannot pass the citizenship test." | "WAIS-IV testing ([scores]) documents cognitive functioning consistent with Intellectual Disability, Mild. [Name] could not retain new English words or civics facts after repeated, simplified practice, and the evaluation explains why accommodations such as extended testing time would not change that." |
| TBI | "The applicant hit their head in a car accident and now gets headaches when trying to read." | "[Name] sustained a severe traumatic brain injury in 2018 (neurology records, Exhibit D). On testing, [name] scored below the 1st percentile on Trail Making Test Part B (more than 300 seconds) and [other scores]. These results show marked problems with cognitive flexibility and sustained attention, and in the evaluation [name] could not retain English vocabulary or civics content after repeated practice." |
Example of effective nexus language for PTSD with cognitive impairment: "[Applicant's] Post-Traumatic Stress Disorder, resulting from [documented trauma], involves severe and persistent symptoms including intrusive memories, hyperarousal, and avoidance. In the evaluation, [Applicant] could not concentrate on new material for more than [time observed], and could not recall new English vocabulary or civics facts after repeated practice. Neuropsychological testing documented impairments in attention [score and percentile], memory [score and percentile], and executive function [score and percentile]. Even with [documented treatment attempts over X months], these cognitive deficits have persisted. This applicant cannot, even with reasonable accommodations, learn, retain, or show the required knowledge of English and U.S. civics."
What about the concurrent filing requirement?
Under current guidance, the N-648 is generally filed together with the N-400, and the form usually has to be signed within a limited time before the N-400 is filed (check the current Policy Manual and form instructions). A later filing is accepted only with extenuating circumstances, such as a disability that developed or got much worse after filing; a late filing without a good reason is treated as a red flag.
Practical timing: Plan the evaluation close to when you will file the N-400, with time for attorney review; our report and completed form usually take 5 to 7 business days after the evaluation. A properly filed N-648 generally stays with that naturalization application through its later steps.
What happens if the N-648 is denied?
There is no separate appeal for an N-648; it is decided as part of the N-400. If the N-648 is found insufficient, USCIS generally gives you the parts of the English and civics tests you are not otherwise exempt from, with a second chance at a re-examination. If the N-400 is then denied, you can generally ask for a hearing before another officer (Form N-336), and after that a federal court can review the case in some situations. These steps have short deadlines and a filing fee (check USCIS's fee schedule), so ask your attorney right away.
At the re-examination
You can generally submit a revised or supplemental N-648, ideally from the same evaluator, who can speak to the specific concerns the officer raised.
Filing a new N-400
Some applicants instead file a new N-400 with a new N-648; whether that fits is a question for an immigration attorney. A new form from a different provider can draw attention as a multiple submission, so it has to explain any differences from the earlier one.
What does USCIS watch for in N-648 fraud screening?
USCIS watches for boilerplate diagnoses, identical narratives across multiple applicants, and conditions that do not match documented medical records. Officers scrutinize copy-paste descriptions of impairment, and refer suspect cases to the Fraud Detection and National Security Directorate.
Current guidance expanded the list of reasons an officer may doubt an N-648, and the list is not exhaustive. Examples include statements at the interview that contradict the claimed condition, earlier medical records (such as the green card medical exam) that show no history of it, other official documents that conflict with the form, forms from several providers, a missing interpreter, an evaluation that appears to break state telehealth rules, and a late filing without a good reason.
USCIS has also pointed to criminal cases against medical professionals who submitted fraudulent forms (see the policy alert).
For evaluators: Write every N-648 report as if it will face close scrutiny. For attorneys: address every potential inconsistency before the interview, not after.
Telehealth and interpreter guidance
Telehealth N-648 evaluations are still allowed, as long as the medical professional is licensed and follows the state's telehealth laws. An evaluation that appears to break those laws is a listed red flag.
California-specific considerations
California does not participate in PSYPACT, the interstate telepsychology agreement. For an evaluation of someone in California, a psychologist generally needs a California license or another authorization the law allows; the Board of Psychology explains the limited exceptions. Dr. Mantonya evaluates people who are physically in California.
Interpreters
Dr. Mantonya examines in English, so if you don't speak English, the examination uses a professional interpreter (a medical professional who shares your language may not need one). Form N-648 asks for the interpreter's name and contact information and a certification that the interpreter is fluent in both languages and interpreted everything accurately and completely; for telephone or video interpretation, the medical professional completes that section. Dr. Mantonya uses professional interpreters.
Document the interpreter in Part 5 of the form, as its instructions require.
Step-by-step: how to work with a psychologist on the N-648
Step 1: Attorney screening
Before you refer a client, screen out inappropriate cases. An N-648 should never go in just because someone is illiterate, elderly, or received a poor education back home. If the inability to learn comes from lack of educational opportunity rather than a medically determinable impairment, the waiver will be denied. If accommodations such as extra time would let the client meet the requirements, a reasonable accommodation is the right path.
Step 2: Assemble the referral package
Once the attorney decides to go ahead, they should put together a complete referral package for the evaluator:
- The draft or filed Form N-400
- Prior Form I-693 medical examination (essential for consistency checking)
- All existing medical, psychiatric, and neurological records
- Medication lists
- Evidence of prior failed attempts to take the English or civics test
- ESL class attendance records and outcomes
- Social Security disability determinations, if any
- Prior N-648 denial notices or RFEs
- A cover letter explaining the case and the specific waiver requested (English only, civics only, or both)
Step 3: Schedule the evaluation
Plan the evaluation close to when the N-400 will be filed, within the time limit for signing, with time for attorney review. Confirm the evaluator is a licensed medical doctor, doctor of osteopathy, or licensed clinical psychologist and is licensed in the state where the evaluation will happen.
Step 4: The clinical evaluation
The evaluator runs the full assessment: clinical interview, cognitive testing, records review, behavioral observations. If you don't speak English, a qualified interpreter has to be present. How long it takes depends on the testing the case needs.
Step 5: Report completion and attorney review
After the assessment, the evaluator fills out the actual N-648 form. For complicated cases, the evaluator writes a supplemental report that goes deeper than the form allows. Our report and completed form usually take 5 to 7 business days after the evaluation. Before filing, the attorney should check for consistency with all prior filings, verify every question that applies is answered, confirm the nexus language is definitive and specific, and check that the report addresses the drug exclusion, the 12-month duration, and reasonable accommodations.
Step 6: Concurrent submission
The N-648 is filed with the N-400. The attorney should confirm the form edition date is current and keep proof of mailing. If there's any delay, be ready to document extenuating circumstances.
Step 7: Prepare for the interview
The USCIS officer will review the N-648 for completeness, clarity, and consistency with other evidence. Officers can question you about daily activities, medical care, employment, and community involvement. Prep the client to answer basic questions about their evaluation ("How long did you spend with the doctor?" "Did you use an interpreter?") so they know what to expect.
What do N-648 case examples look like?
Typical N-648 cases involve elderly applicants with documented dementia, adults with traumatic brain injury, and individuals with severe depression or PTSD. Strong cases pair a precise DSM-5-TR diagnosis with neuropsychological testing, treatment records, and a clear narrative explaining why the condition prevents the applicant from learning English or civics. Weak cases cite vague symptoms without testing, records, or nexus.
Three composite, illustrative N-648 cases across common qualifying conditions. They are not real cases and do not describe any USCIS decision; the instruments and legal standards are accurate.
Aurora, 71, Philippines, major neurocognitive disorder, N-400 with N-648
Aurora has been a lawful permanent resident since 2007. She lives with her U.S. citizen daughter in Daly City. At 71 with 18 years as a permanent resident, she meets the 55/15 English exemption but not the 65/20 rule, so the N-648 question was the civics test, taken in her own language. Her daughter referred her after Aurora failed two Adult School English-as-a-Second-Language (ESL) cycles in a row, with attendance records on file from City College of San Francisco.
What the evaluation documented: Montreal Cognitive Assessment (MoCA) raw score of 14 out of 30 (well below the usual 26-point cutoff, education-adjusted), with deficits across visuospatial reasoning, naming, attention, and delayed recall. The clinical interview produced gaps consistent with a major neurocognitive disorder due to probable Alzheimer disease. Records review confirmed a neurology note from Kaiser Permanente in 2024 documenting an MRI showing bilateral hippocampal atrophy, plus prescriptions for donepezil 10 mg and memantine 5 mg twice daily. The evaluator wrote a clear nexus paragraph: Aurora's disorder is medically determinable, has lasted more than 12 months, is not caused by drug or alcohol use, and prevents her from learning, retaining, or recalling civics content, even in Tagalog.
What to expect: the officer reviews the N-648 at the interview. In a case like this the interview was conducted with a Tagalog interpreter, and her daughter came with her. Whether a disability waiver is granted depends on many factors beyond the evaluation.
Reza, 58, Iran, severe PTSD with treatment-resistant depression, N-400 with N-648
Reza arrived as an asylee in 2009 and adjusted to lawful permanent resident status in 2011. He survived state torture in Iran in the 1990s and has been in continuous psychiatric care since 2011. He attempted the English and civics tests twice in 2022 and 2023 and failed both. His attorney referred him for an N-648 evaluation after a third attempt was scheduled.
What the evaluation documented: Posttraumatic Stress Disorder Checklist for the DSM-5 (PCL-5) score of 64 (well above the 31 to 33 range the VA's National Center for PTSD gives as a starting point for probable PTSD), Patient Health Questionnaire (PHQ-9) score of 23 (severe), Generalized Anxiety Disorder scale (GAD-7) score of 19 (severe), and Trauma Symptom Inventory, Second Edition (TSI-2) elevations on intrusive experiences, defensive avoidance, dissociation, and impaired self-reference. The clinical interview, conducted in Farsi with a professional interpreter, documented daily intrusive memories, dissociative episodes triggered by classroom-style instruction, and a 14-year history of treatment-resistant Major Depressive Disorder. Psychiatrist records from his county mental health clinic confirmed sertraline 200 mg, prazosin 6 mg at bedtime, and a partial response to twice-weekly trauma-focused therapy. The nexus paragraph explained, in plain language, why a person who dissociates during structured instruction cannot learn or retain civics content for testing, even in Farsi (at 58 with 15 years as a permanent resident he meets the 55/15 English exemption).
What to expect: an officer may issue a Request for Evidence asking for the underlying psychiatric records; a response would supplement with three years of clinic progress notes and a letter from Reza's treating psychiatrist confirming the diagnosis and duration. Whether a disability waiver is granted depends on many factors beyond the evaluation.
Carmen, 49, Mexico, traumatic brain injury, N-400 with N-648
Carmen has been a lawful permanent resident since 2005. In 2019 she was hit by a drunk driver while crossing a parking lot in Bakersfield. She spent eleven days in the trauma intensive care unit at Kern Medical and another six weeks in inpatient rehabilitation. Her medical file documents a moderate-to-severe traumatic brain injury (TBI) with frontal lobe involvement. She enrolled in two ESL cycles in 2022 and 2023, finished neither, and has tried civics flashcards with her teenage son for over two years without retaining the answers reliably.
What the evaluation documented: Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) total index score of 71 (borderline range), with low index scores for immediate memory (65), delayed memory (67) and attention (70). The clinical interview, conducted in Spanish through a professional interpreter, surfaced persistent post-concussive symptoms including word-finding difficulty, slowed information processing, and short-term memory loss. Records review confirmed neurologist notes from Kaiser Bakersfield documenting the 2019 TBI, an MRI showing residual frontal contusion, and ongoing care for post-traumatic headaches and sleep disturbance. The evaluator wrote that Carmen's deficits are medically determinable, more than 12 months in duration (over six years post-injury), not caused by substance use, and directly prevent her from acquiring or retaining the English vocabulary and civics content the naturalization test requires.
What to expect: the officer may ask at the interview about Carmen's daily activities and care routine. Whether a disability waiver is granted depends on many factors beyond the evaluation.
You deserve a fair path to citizenship
Dr. Mantonya is a California-licensed clinical psychologist with forensic evaluation experience in high-security clinical settings. N-648 evaluations include cognitive testing, clinical interview, records review, and a complete report. $1,500 flat fee, with the report usually in 5 to 7 business days. Professional interpreter available if needed.
Contact Dr. MantonyaDr. Julia Mantonya • PSY28494 • Licensed Clinical Psychologist • California Statewide Telehealth
Frequently asked questions
What is the difference between Form N-648 and the age-based English/civics exemption?
They are two different exemptions, and applicants often confuse them. The age-based exemption depends on age and years as a permanent resident: some older long-time residents are exempt from the English requirement and can take civics in their own language, and some get a simplified civics test. No medical condition is needed. The N-648 exception applies at any age and rests on a medically determinable physical, developmental, or mental impairment that prevents you from learning English, civics, or both. If an age exemption already covers English, any N-648 question is about civics. Whether either applies to you is a question for your immigration attorney.
Who can sign Form N-648?
Only three types of licensed professionals: medical doctors (M.D.), doctors of osteopathy (D.O.), and licensed clinical psychologists. A social worker, marriage and family therapist, nurse practitioner or counselor license is not enough by itself under 8 CFR § 312.2(b)(2). The evaluator must hold an active U.S. license.
What medical conditions qualify for the N-648 disability waiver?
Any medically determinable physical, developmental, or mental impairment that prevents you from learning English, civics, or both. Common qualifying conditions include Alzheimer's disease and dementia, intellectual disability, PTSD with cognitive impairment, traumatic brain injury, schizophrenia, severe depression with cognitive deficits, and stroke with aphasia. The condition must have lasted or be expected to last at least 12 months and the loss of skills cannot be due to the direct effects of illegal drug use.
How much does an N-648 evaluation cost?
Dr. Mantonya charges a $1,500 flat fee that includes cognitive testing, clinical interview, records review, and a complete report, usually in 5 to 7 business days. Professional interpreter available if needed. There is no USCIS filing fee for the N-648 form itself, and evaluations are not covered by health insurance.
Can PTSD qualify for an N-648 disability waiver?
Yes, but a PTSD diagnosis by itself is not enough. The form has to explain, for this person, how the symptoms prevent them from meeting the English or civics requirements, for example how hyperarousal affects attention or how intrusive memories interrupt study. Neuropsychological testing and the treatment history (therapy or medication, and whether the cognitive problems continued) help document it.
How long is an N-648 valid?
Usually the form has to be signed within a limited time before the N-400 is filed (check the current Policy Manual and form instructions); a form submitted later because a condition began or worsened after filing is handled differently. Once properly filed with the N-400, it generally stays with that application through its later steps.
What changed in USCIS's review of Form N-648?
A recent USCIS policy alert tightened review: the N-648 is generally to be filed with the N-400, officers have more listed reasons to doubt a form (including a catch-all), multiple submissions get closer scrutiny, and an officer can accept the diagnosis yet still find the form insufficient if it does not explain how the condition prevents meeting the requirements. If you filed before the change, ask your attorney which guidance applies.
What is the difference between an N-648 and a reasonable accommodation?
An N-648 asks for an exception to the English requirement, the civics requirement, or both; which tests you skip depends on what the certification supports and what USCIS accepts. A reasonable accommodation modifies how the test is administered (extended time, large print, sign language interpreter, off-site testing), but you still take the test. The exception is for someone whose impairment prevents them from meeting the requirements even with reasonable accommodations (USCIS Policy Manual Vol. 12, Part E, Ch. 3). Both can be requested at the same time when appropriate.
What happens if my N-648 is denied?
You generally take the parts of the English and civics tests you are not otherwise exempt from, with a second chance at a re-examination where a revised N-648 can be submitted. If the N-400 is denied, you can generally ask for a hearing before another officer (Form N-336), and federal court review may follow. These steps have short deadlines and a fee (check USCIS's fee schedule), so ask your attorney right away.
Can a family doctor complete the N-648?
Yes, any licensed M.D. or D.O. can technically sign the form. However, the form has to describe the diagnostic methods used and explain the link to the requirements in detail, so the professional needs experience diagnosing the impairment involved. For cognitive and mental health conditions, a psychologist's testing can document the impairment and the link to learning.
Can a second N-648 be submitted from a different doctor?
It can, but under current guidance it draws attention: the officer may question multiple submissions, especially from different providers with inconsistent findings. Often the better approach is for the original evaluator to address the concerns. If a new evaluator is needed, the new evaluation should explain any differences from the earlier one.
Why is my doctor's regular note not enough for N-648?
A standard medical note from a primary care doctor is usually not enough, because USCIS does not adjudicate Form N-648 the way an insurance company processes a sick note. USCIS looks for the nexus, the specific clinical link between a medically determinable impairment and the inability to learn or show English and civics. A note that says the patient has dementia and cannot study is treated as a conclusion without evidence. What USCIS wants is the methodology behind the conclusion: the diagnostic criteria from the DSM-5-TR or ICD-10, the specific cognitive domains affected (attention, working memory, language processing, executive function), the clinical methods used (interview, records and, where appropriate, standardized testing), the duration and chronicity of the impairment, and an explanation of why reasonable accommodations would not make testing feasible. Under current guidance, an officer can accept the diagnosis and still find the form insufficient when that explanation is missing.
Does my N-648 evaluation need to use specific medical codes (ICD-10)?
Including a current diagnosis code helps present a clear clinical picture, and the form has a field for it. But USCIS guidance says an officer may not find an N-648 insufficient only because codes are missing when the diagnosis is clearly described (USCIS Policy Manual). For mental health conditions, the evaluator uses current diagnostic terms that match the assessment.