Form N-648 is the only pathway to United States citizenship for naturalization applicants whose physical, developmental, or mental impairments prevent them from learning English or civics. It is a statutory right under INA § 312(b)(1), not a discretionary benefit. But since June 2025, when USCIS issued Policy Alert PA-2025-10, the adjudication of this form has shifted from a presumption of validity to one of institutional skepticism.
The gap between a well-prepared N-648 and a denial has never been wider. Only doctoral-level providers can sign the form. Over 65,000 N-648 forms are filed annually. And under the 2025 policy overhaul, USCIS officers now have a catch-all authority to deny any N-648 based on "any other articulable grounds supported by the record." This guide covers everything attorneys and evaluators need to know to navigate the current landscape.
annually (FY 2020)
fraudulent (FDNS data)
before N-400 filing
In This Guide
- What is the N-648 disability waiver?
- Who can sign Form N-648?
- What changed with the 2025 USCIS policy update (PA-2025-10)?
- What conditions qualify for the N-648 exemption?
- What does the evaluation process look like?
- What are the most common reasons N-648s get denied?
- 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
- Frequently asked questions
What is the N-648 disability waiver?
The N-648 disability waiver is a medical certification that exempts naturalization applicants from the English language and U.S. civics knowledge requirements when a physical, developmental, or mental impairment prevents them from learning or demonstrating that knowledge. Congress created this exemption through Section 108 of the Immigration and Nationality Technical Corrections Act of 1994 (Pub. L. 103-416), and it is codified at INA § 312(b)(1) and 8 CFR § 312.2.
The operative standard requires that the impairment be "medically determinable", meaning it results from anatomical, physiological, or psychological abnormalities that can be shown by medically acceptable clinical or laboratory diagnostic techniques. Subjective complaints alone are not sufficient. Three additional requirements constrain eligibility:
- 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: The applicant must be unable to demonstrate the required knowledge "even with reasonable modifications" to testing. This separates the N-648 from mere disability accommodation.
The N-648 can exempt the applicant from the English requirement, the civics requirement, or both. It can also certify that the applicant cannot understand the meaning of the Oath of Allegiance, which triggers a separate waiver requiring the appointment of a designated representative.
The current form edition is 09/25/2024, valid through 09/30/2027. Adjudication guidance lives in USCIS Policy Manual Volume 12, Part E, Chapter 3, which was substantially rewritten by PA-2025-10 in June 2025.
Important distinction: The N-648 is a complete exemption from testing. It is not a request for accommodations like extra time, large print, or a sign language interpreter. Those are reasonable accommodations under Section 504 of the Rehabilitation Act, which require no special form and no doctor's letter. If an applicant can learn with accommodations, an N-648 is not appropriate.
Who can sign Form N-648?
Only three types of professionals can sign Form N-648. This restriction is codified at 8 CFR § 312.2(b)(2) and is non-negotiable. Forms signed by anyone outside this list are automatically rejected:
- Medical Doctors (M.D.)
- Doctors of Osteopathy (D.O.)
- Clinical Psychologists (PsyD or PhD) with an active state license
No exceptions exist. Licensed Clinical Social Workers (LCSWs), Licensed Marriage and Family Therapists (LMFTs), Licensed Professional Counselors (LPCs), Nurse Practitioners (NPs), and Physician Assistants (PAs) are all categorically excluded. The CIS Ombudsman has acknowledged that this restriction creates practical barriers and recommended expanding the list, but USCIS has not acted on that recommendation.
This is the most common point of failure. Immigration attorneys frequently refer clients to master's-level clinicians who cannot legally certify the N-648. The form is rejected outright, the client loses weeks or months, and the 180-day filing window may expire. Always verify the evaluator holds a doctoral-level credential before scheduling.
Why the PsyD credential matters for N-648 evaluations
While any M.D. or D.O. can technically sign the form, the 2025 policy standards demand a level of clinical rigor that makes N-648 evaluations impractical for most primary care physicians. The evaluation requires formal cognitive testing, neuropsychological assessment, detailed nexus construction, and forensic-quality report writing. Clinical psychologists with a PsyD or PhD are trained specifically in psychometric testing, diagnostic interviewing, and forensic report writing. This is why psychologists handle the majority of mental health and cognitive N-648 cases.
PA-2025-10 reaffirmed that the evaluator must be "experienced in diagnosing those with physical or mental medically determinable impairments." An evaluator without N-648 expertise creates risk. The ILRC notes that while LCSWs and LMFTs cannot sign the form, they "can be instrumental in helping the medical professional do a thorough job" by gathering records, writing treatment summaries, and providing collateral information to the evaluating psychologist.
What changed with the 2025 USCIS policy update (PA-2025-10)?
On June 13, 2025, USCIS issued Policy Alert PA-2025-10, titled "Revised Guidance for Form N-648 Submission and Review Process." This is the most significant tightening of N-648 adjudication standards in over a decade. It explicitly links disability waiver adjudication to Executive Orders 14148 and 14159, reframing what had been a medical accommodation process within a national security and fraud-prevention context.
The policy applies to all naturalization applications filed on or after June 13, 2025. Applications filed before that date are governed by the more accommodative October 2022 framework. The ILRC recommends bringing a copy of the prior Policy Manual chapter to interviews for pre-June 2025 cases.
Key changes under PA-2025-10
- Mandatory concurrent filing returns. The 2022 framework used permissive language: N-648 "should" be filed concurrently. PA-2025-10 reverts to mandatory language: the N-648 "must" be submitted with the N-400. Late filings require demonstrated "extenuating circumstances" such as a disability that developed after the N-400 was filed, plus supervisor approval.
- Supervisory safeguards removed. Previously, officers needed supervisor approval before requesting a supplemental N-648 from a different provider or referring a case to FDNS. PA-2025-10 eliminated both requirements, giving individual officers more discretion to escalate cases without oversight.
- New presumption about medical evidence. PA-2025-10 introduced this language: "The presumption that the medical professional has correctly diagnosed the [noncitizen's] medical condition is not a presumption that the [noncitizen] has met his or her burden of establishing eligibility for a waiver." Officers can now acknowledge a legitimate diagnosis while still denying the N-648 if the nexus to inability to learn is insufficiently explained.
- Catch-all denial authority. Officers can now deny N-648s based on "any other articulable grounds supported by the record." This allows rejections over discrepancies that would have been dismissed in prior years.
- "Doctor shopping" red flag. Submitting multiple N-648 forms from different clinicians is now explicitly identified as a fraud indicator.
- Interpreter scrutiny. FDNS officers can now investigate interpreters suspected of involvement in N-648 fraud schemes. If an interpreter is disqualified, the evaluation is rejected entirely.
The fraud narrative versus the data
USCIS justified the crackdown by citing "numerous instances where the medical certification process has been exploited." But the agency's own data tells a different story. According to the CIS Ombudsman Annual Report cited by the ILRC, in FY 2020 out of 65,091 N-648 filings, only 302 (0.5%) were referred to FDNS, and only 66 (0.1%) were found fraudulent. The ILRC concluded: "USCIS's own record does not support the allegation of widespread fraud in disability waivers."
The policy pendulum
As of March 2026, the proposed form expansion has not been finalized. The current form edition (09/25/2024) remains valid through 09/30/2027. Attorneys should monitor the Federal Register for any finalization of the expanded form.
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 evaluator establishes that it prevents the applicant from learning or demonstrating English and civics knowledge. The key is not the diagnosis itself but the functional impact on the specific cognitive skills required for language acquisition and factual learning.
Neurocognitive disorders
These represent the most straightforward N-648 cases. Alzheimer's disease, vascular dementia, Parkinson's disease with cognitive decline, and major neurocognitive disorder from any etiology typically produce severe, documented, and irreversible impairments in memory, attention, and executive function. A MoCA score of 18/30 or an MMSE of 22/30 provides concrete, quantifiable evidence difficult for adjudicators to dispute.
Intellectual disability
Requires documented IQ at or below 70 with concurrent adaptive functioning deficits and onset during the developmental period. A Full Scale IQ of 65 on the WAIS-IV with corresponding limitations in conceptual, social, and practical adaptive skills makes a strong case because the condition is lifelong, untreatable, and directly affects the ability to acquire academic-type knowledge.
PTSD with cognitive impairment
Among the most common and most contested diagnoses in N-648 practice. PTSD alone is generally insufficient. The evaluator must demonstrate how chronic hyperarousal disrupts sustained attention, how intrusive memories interrupt working memory and prevent encoding new information, and how avoidance symptoms prevent engagement with structured learning. The strongest PTSD-based N-648s document treatment resistance: the applicant has received therapy, medication, or both, yet cognitive deficits persist. Neuropsychological testing showing impairment levels incompatible with new language acquisition transforms a marginal PTSD case into a strong one.
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. However, applicants aged 50+ with 20 years of lawful permanent residence (the 50/20 rule) or aged 55+ with 15 years (the 55/15 rule) are already exempt from the English requirement and may take civics in their native language. An N-648 is only necessary if the disability also prevents learning civics in their own language.
- Illiteracy without a co-occurring cognitive impairment
- Lack of educational opportunity alone
- A language barrier without an underlying disability
- Mild, treatable psychiatric conditions that respond to therapy or medication, unless the evaluator documents treatment resistance and persistent cognitive deficits
What does the evaluation process look like?
A defensible N-648 evaluation in the post-PA-2025-10 environment requires substantially more than a brief clinical encounter and a completed form. The evaluation should be conceptualized as a forensic assessment with legal consequences, not a routine clinical appointment. A comprehensive evaluation typically involves three phases.
Phase 1: Clinical interview (60 to 90 minutes minimum)
The interview should comprehensively cover psychiatric and medical history, developmental history and educational background, immigration and trauma history, cognitive complaints and functional limitations, daily living activities and employment capability, prior attempts to study English or civics and the outcomes, and behavioral observations during the interview including orientation, attention, language use, affect, and cooperation. Collateral information from family members or caregivers much strengthens the evaluation, particularly when the applicant's cognitive limitations make self-report unreliable.
Phase 2: Cognitive and neuropsychological testing (2 to 3 hours)
While USCIS does not mandate specific instruments, formal testing provides the quantitative evidence that separates strong N-648s from weak ones. The battery should be tailored to the presenting concerns and administered in the applicant's native language or with a certified interpreter.
| Test Category | Instruments | N-648 Application |
|---|---|---|
| Cognitive Screening | MoCA, MMSE, RUDAS | Baseline cognitive impairment. MoCA superior for mild impairment detection. RUDAS validated across multilingual populations. Scores below cutoffs (MoCA < 26) indicate impairment. |
| Intelligence | WAIS-IV | Full-Scale IQ, Working Memory, Processing Speed. Gold standard for intellectual disability diagnosis. Identifies specific deficits in retaining new information. |
| Memory | WMS-IV, Boston Naming Test | Directly measures encoding, storage, and retrieval of new information. Maps to the exact cognitive skills required for English vocabulary and civics fact memorization. |
| Executive Function | Trail Making Test A & B, D-KEFS | Attention, processing speed, cognitive flexibility. Demonstrates executive dysfunction in PTSD, TBI, and vascular neurocognitive disorders. |
| Psychiatric | PHQ-9, GAD-7, PCL-5 | Documents severity of depression, anxiety, and PTSD. Establishes the psychiatric basis for cognitive impairment claims. |
| Performance Validity | TOMM | Essential in 2026. Proves the applicant put forth genuine effort. A strong TOMM score (Trial 2 ≥ 45/50) validates all other test data and preempts USCIS skepticism. Nonverbal format works for non-English speakers. |
Performance validity testing is no longer optional. In the current enforcement climate, including effort testing preempts the single most damaging objection USCIS can raise: that the applicant was not genuinely trying. The AACN Consensus recommends at least two independent validity measures. When the TOMM is passed, report it explicitly: "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 and the reasons for their denial. Cross-referencing the I-693 medical examination is essential because USCIS officers will compare the two forms, and any discrepancy is now a specific red flag under PA-2025-10. If the I-693 shows no mental health history but the N-648 claims a longstanding impairment, the evaluator must proactively explain the discrepancy.
What are the most common reasons N-648s get denied?
Understanding why N-648s fail is as important as understanding how to prepare them. Based on the USCIS Policy Manual, ILRC practice advisories, and practitioner analysis, the most frequent grounds for insufficiency findings are:
- Insufficient nexus. The evaluator failed to clearly explain how the disability specifically prevents learning English and civics. This is the single most common deficiency.
- Boilerplate or template language. Generic, cut-and-paste language not individualized to the applicant. The ILRC warns that reliance on templates "is risky and could lead to a denial based on credible doubt."
- Inconsistency with the I-693. The green card medical examination shows no history of the condition now claimed on the N-648.
- Inadequate diagnostic methods. Failure to describe the clinical or laboratory techniques used to reach the diagnosis.
- Incomplete form. Missing signatures, unanswered questions, absent diagnostic codes, or failure to address the drug exclusion and 12-month duration requirements.
- Vague medical terminology. Using jargon without lay-language explanation of cognitive impacts.
- Inconsistency with interview observations. The applicant demonstrates abilities during the USCIS interview that appear inconsistent with the claimed disability.
- Unauthorized signer. The form was completed by someone other than an M.D., D.O., or licensed clinical psychologist.
- Stale form. Completed more than 180 days before the N-400 filing.
- Late filing without justification. Under PA-2025-10, filing after the N-400 without demonstrated extenuating circumstances.
Every section of the N-648 form must be completed. Unanswered questions are grounds for an insufficiency finding. All medical terminology must be accompanied by plain-language explanation. The ILRC advises writing the nexus "as if explaining to a middle schooler" while keeping the clinical substance rigorous.
How do you establish the nexus between disability and inability to learn?
The nexus statement is the single most critical element of the N-648. It is also the single most common reason for denial. USCIS requires a direct, causal, and specific explanation of how the diagnosed disability prevents the applicant from learning, retaining, or demonstrating knowledge of English and civics. Not merely that the disability exists. Not merely that it makes learning "difficult."
What USCIS rejects
USCIS explicitly rejects equivocal phrasing. "Might affect," "seems to impair," "appears to have difficulty," and "likely has" are all insufficient. The evaluator must use definitive language: "cannot," "is unable to," "prevents," "precludes," "makes it impossible." The agency also rejects "piecing together" the cumulative impact of conditions without explicitly articulating how they interact to destroy learning capacity.
How to build a defensible nexus
The nexus must connect specific symptoms to specific cognitive processes to specific naturalization tasks:
- Memory impairment must be linked to inability to retain vocabulary and civics facts
- Attention deficits must be linked to inability to sustain focus during instruction or follow multi-step verbal instructions
- Executive dysfunction must be linked to inability to organize information, shift between topics, or plan study strategies
- Processing speed deficits must be linked to inability to process verbal questions in a real-time interview setting
The evaluator must also explicitly address whether the applicant could meet the requirements "even with reasonable accommodations" such as extended time, oral administration, or modified testing conditions. Omitting this element invites an insufficiency finding.
Weak versus strong nexus language
| Diagnosis | Insufficient (Denial Likely) | Strong Forensic Nexus (Approval Likely) |
|---|---|---|
| PTSD | "The applicant has severe trauma from the war, which makes them anxious during tests and unable to focus on learning English." | "The applicant's severe PTSD hyperarousal symptoms at its core disrupt sustained attention and executive functioning. This prevents the transfer of new linguistic or civics information into short-term memory, rendering the acquisition of a secondary language neurologically impossible. Despite 18 months of psychiatric treatment, these cognitive deficits persist." |
| Dementia | "The applicant suffers from dementia and forgets things constantly, making studying the 100 civics questions too difficult." | "Progressive vascular neurocognitive decline has severely eroded hippocampal function. MoCA scores of 12/30 confirm severe deficits in delayed recall and working memory, completely eliminating the biological capacity to encode, retain, or retrieve the necessary civics data. Reasonable accommodations such as extended time cannot restore destroyed memory consolidation pathways." |
| Intellectual Disability | "The patient has lifelong low intelligence and cannot read or write, so they cannot pass the citizenship test." | "WAIS-IV testing confirms a Full-Scale IQ of 62 (Intellectual Disability, Mild), indicating lifelong, pervasive deficits in fluid reasoning and verbal comprehension. This neurodevelopmental condition physically precludes the cognitive processing required to grasp abstract governmental concepts or secondary language syntax, regardless of accommodations provided." |
| TBI | "The applicant hit their head in a car accident and now gets headaches when trying to read." | "A severe TBI sustained in 2018 resulted in frontal lobe damage evidenced by severe deficits on the Trail Making Test (Part B: >300 seconds, <1st percentile). This neurological damage irreparably impairs cognitive flexibility and sustained attention, preventing the applicant from processing or memorizing English vocabulary or civics content." |
Example of effective nexus language for PTSD with cognitive impairment: "[Applicant's] Post-Traumatic Stress Disorder, resulting from [documented trauma], causes severe and persistent symptoms including intrusive memories, hyperarousal, and avoidance behaviors. Chronic hyperarousal disrupts sustained attention, making it impossible to concentrate on learning new material for more than a few minutes. Intrusive trauma memories interrupt working memory processes, preventing the encoding and consolidation of new information such as English vocabulary or civics facts. Neuropsychological testing confirmed impairments in attention [score], memory [score], and executive function [score] that fall well below levels required for new language acquisition. Despite [documented treatment attempts over X months], these cognitive deficits have persisted. This applicant cannot, even with reasonable accommodations, learn, retain, or demonstrate the required knowledge of English and U.S. civics."
What about the concurrent filing requirement?
Under PA-2025-10, the N-648 must be submitted concurrently with the N-400 application. This is a reversal of the 2022 framework, which broadly accepted late submissions. The medical professional must sign the form no more than 180 days before the N-400 is filed.
Late filings are now accepted only when the applicant demonstrates "extenuating circumstances" and requires supervisor approval. The ILRC identifies the following as potentially qualifying extenuating circumstances:
- A disability that developed after the N-400 was filed
- A pre-existing condition that much worsened after filing
- The applicant was unable to locate a qualified provider before the filing deadline
A late submission without adequate justification is now treated as a red flag. Bringing the N-648 to the interview for the first time, which was common practice before June 2025, now invites skepticism and may require supervisory review.
Practical timing recommendation: Schedule the evaluation 2 to 4 months before the planned N-400 filing date. This allows 2 to 4 weeks for report completion and attorney review while staying well within the 180-day window. Once the N-648 is properly filed concurrently with the N-400, it remains valid for the entire naturalization process connected to that application, including re-examination and any N-336 hearing.
What happens if the N-648 is denied?
There is no standalone appeal for an N-648 denial. The N-648 is adjudicated as part of the N-400, and the appeal mechanism is Form N-336 (Request for Hearing on a Decision in Naturalization Proceedings).
At the initial interview
If USCIS finds the N-648 insufficient, three outcomes are possible: the N-648 is found sufficient and the applicant is excused from testing; the N-648 is found partially sufficient and the applicant is tested only on the non-waived requirement; or the N-648 is found insufficient and the applicant must attempt the English and civics tests. If the applicant fails, the officer issues a Request for Evidence detailing the specific deficiencies, and a re-examination is scheduled 60 to 90 days later.
At the re-examination
The applicant may submit a revised or supplemental N-648, ideally from the same evaluator addressing the specific deficiencies identified. If the N-648 is still insufficient at re-examination and the applicant fails the tests again, no further RFE is permitted, and the N-400 is denied.
The N-336 hearing
The applicant must file within 30 calendar days of denial (33 days if notice was mailed), with a $700 filing fee (fee waiver available). USCIS schedules a de novo hearing before a different officer of equal or higher rank. The applicant may submit new or additional N-648 documentation and gets one more attempt at the English and civics requirements. An attorney successfully reversed an N-648 denial at an N-336 hearing by presenting a corrected, more thorough evaluation that addressed the specific deficiencies cited by the initial officer.
Federal court review
If the N-336 hearing also results in denial, the applicant may seek review in U.S. District Court. Under INA § 336(b), if USCIS does not adjudicate the N-336 within 120 days, the applicant may petition the court to decide the matter.
Filing a new N-400
A practical alternative is simply filing a new N-400 application with a new, strengthened N-648. This sometimes proves faster than the appeals process. However, under PA-2025-10, submitting a new N-648 from a different provider triggers the "multiple submissions" red flag. The new evaluation must be exceptionally thorough and explicitly acknowledge and reconcile any differences with the prior submission.
N-648 fraud: what USCIS is watching for
PA-2025-10 expanded the list of "credible reasons to doubt" an N-648 from approximately six factors to at least fourteen. Understanding every red flag is essential for evaluators who want to proactively address them and for attorneys who need to prepare clients for what officers will scrutinize.
The expanded red flag inventory
Red flags carried over from prior guidance include: the applicant was not actually examined by the certifying professional, the medical professional is under investigation for fraud, and the interpreter used during the evaluation is known or suspected to be involved in immigration fraud. The new red flags added by PA-2025-10 are:
- Interview statements that directly contradict the claimed medical condition
- The I-693 medical examination shows no history of the condition now claimed
- Any official documentation conflicts with N-648 information
- Multiple submissions from different providers (characterized as potential "doctor shopping")
- An interpreter was not present but likely should have been
- The evaluation appears to violate state telehealth laws
- The form was filed late without extenuating circumstances
- "Any other articulable grounds supported by the record" (the catch-all)
Federal fraud prosecutions
USCIS's fraud crackdown is backed by real prosecutions. Several notable DOJ cases have shaped the current enforcement posture:
- United States v. Awaisi (E.D. Mich., 2023): A physician was convicted of preparing fraudulent N-648 certificates after performing sham examinations and falsely diagnosing disabilities.
- United States v. Van Horn (S.D. Fla., 2020): Two doctors were charged with assisting 1,249 immigrants through fraudulent waivers, diagnosing disorders the applicants did not have and charging $500 per fake certification.
- United States v. Mendez-Villamil (S.D. Fla., 2016): A Miami psychiatrist was sentenced for providing false mental health diagnoses for thousands of naturalization applicants.
- United States v. Kostic (N.D. Ill., 2016): A Chicago doctor and assistant were indicted for falsifying N-648 forms, claiming applicants could not learn English even in their own language and fabricating examination details.
Despite these cases, the statistical reality bears repeating: only 0.1% of all N-648 filings in FY 2020 were confirmed fraudulent. The tension between the enforcement posture and the actual fraud rate is a factual basis for challenging overly aggressive adjudication in N-336 hearings and federal court review.
For evaluators: The practical takeaway is that every N-648 report must be written as if it will face quasi-adversarial scrutiny. For attorneys: proactively address every potential inconsistency before the interview. A well-prepared submission is the best defense against a system primed to look for problems.
Telehealth and interpreter guidance
Telehealth N-648 evaluations remain fully permissible under both the 2022 and 2025 policy frameworks, provided the medical professional complies with state telehealth laws and the evaluation involves a synchronous, real-time interaction via video or telephone. However, PA-2025-10 added evaluations that appear to "violate state telehealth laws" as a specific red flag.
California-specific considerations
California does not participate in PSYPACT, the interstate telepsychology agreement. This means applicants residing in California cannot legally rely on telehealth evaluations conducted by psychologists licensed in other states. They must use a California-licensed doctoral provider. For psychologists, this means holding an active California Board of Psychology PSY license. This regulatory barrier limits the provider pool but reinforces the value of California-based practitioners who understand local field office practices.
Interpreter requirements
If the applicant does not speak English, a professional, neutral interpreter must be utilized. Evaluators should thoroughly document the interpreter's identity, credentials, and qualifications, given the recent FDNS focus on interpreter fraud. Under the current policy, USCIS has authorized FDNS to aggressively scrutinize interpreters. If an interpreter is suspected of involvement in an "N-648 mill," they may be summoned via a G-56 Call-in letter or subpoenaed. If the interpreter is disqualified, the evaluation is rejected entirely.
Document the interpreter. Include the interpreter's full name, language, professional credentials, and a statement confirming they have no relationship to the applicant beyond the evaluation. USCIS expects interpreter information on Item 22 of the N-648 form. The ILRC recommends using the same interpreter for the clinical evaluation and the USCIS interview to maintain consistency.
Step-by-step: how to work with a psychologist on the N-648
Step 1: Attorney screening
Before referring a client, screen out inappropriate cases. An N-648 should never be filed merely because an applicant is illiterate, elderly, or received a poor education in their home country. If the inability to learn is based solely on lack of educational opportunity rather than a medically determinable impairment, the waiver will be denied. If the client's condition only makes testing difficult but does not prevent learning, a reasonable accommodation is the appropriate path.
Step 2: Assemble the referral package
Once eligibility is established, the attorney should compile a comprehensive 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 (powerful evidence)
- 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
Time the evaluation 2 to 4 months before the planned N-400 filing date, allowing 2 to 4 weeks for report completion and attorney review while staying within the 180-day window. Confirm the evaluator holds a doctoral-level credential (M.D., D.O., PsyD, or PhD) and is licensed in the state where the evaluation will occur.
Step 4: The clinical evaluation
The evaluator conducts the comprehensive assessment: clinical interview, cognitive testing, records review, and behavioral observations. If the applicant does not speak English, a qualified interpreter must be present. The evaluation typically takes 1 to 4 hours (60 minutes for the interview, 2 to 3 hours for cognitive testing when warranted).
Step 5: Report completion and attorney review
The evaluator completes the N-648 form and, for complex cases, prepares a supplemental report. Report turnaround is generally 2 to 4 weeks. Before filing, the attorney should review for consistency with all prior filings, verify that every section of the form 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
File the N-648 with the N-400. Confirm the form edition date is current. Keep proof of mailing. If there is any delay in filing, be prepared 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 the applicant about daily activities, medical care, employment, and community involvement. Prepare the client to answer basic questions about their evaluation ("How long did you spend with the doctor?" "Did you use an interpreter?") to ensure the evaluation appears credible and consistent with their presentation.
Disclaimer: This article is for educational purposes only and does not constitute legal advice. Immigration law is complex and changes frequently. Consult a licensed immigration attorney for guidance specific to your case. Dr. Julia Mantonya, PsyD (PSY 28494) provides psychological evaluations for immigration cases but does not provide legal advice.
Need a qualified evaluator for an N-648 case?
Dr. Mantonya is a California-licensed clinical psychologist (PsyD) with forensic evaluation experience in corrections and high-security settings. N-648 evaluations include cognitive testing, clinical interview, records review, and a complete report. $1,500 flat fee. 5 to 7 day turnaround. Spanish interpretation included at no extra cost.
Contact Dr. MantonyaDr. Julia Mantonya, PsyD • PSY 28494 • Licensed Clinical Psychologist • California Statewide Telehealth
Frequently asked questions
Who can sign Form N-648?
Only three types of licensed professionals: medical doctors (M.D.), doctors of osteopathy (D.O.), and clinical psychologists with a doctoral degree (PsyD or PhD). Licensed Clinical Social Workers, Marriage and Family Therapists, Nurse Practitioners, and master's-level counselors are all categorically excluded 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 the applicant from learning English and civics. 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 cannot be solely due to illegal drug use.
How much does an N-648 evaluation cost?
N-648 evaluations typically cost between $800 and $2,000 depending on case complexity and evaluator credentials. Dr. Mantonya charges a $1,500 flat fee that includes cognitive testing, clinical interview, records review, and a complete report with a 5 to 7 day turnaround. Spanish interpretation is included at no extra cost. 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 PTSD alone is generally insufficient. The evaluator must demonstrate how chronic hyperarousal disrupts sustained attention, how intrusive memories interrupt working memory, and how avoidance symptoms prevent structured learning. The strongest PTSD-based N-648s include neuropsychological testing showing measurable cognitive impairment and document treatment resistance (the applicant received therapy or medication but cognitive deficits persist).
How long is an N-648 valid?
The medical professional must sign the form no more than 180 days (approximately six months) before the N-400 is filed. Once properly submitted and accepted, the N-648 remains valid for the entire duration of that naturalization application, including re-examination and any N-336 hearing, regardless of how long USCIS takes to adjudicate the case.
What changed with the 2025 USCIS N-648 policy update?
Policy Alert PA-2025-10 (June 13, 2025) much tightened adjudication. Key changes: mandatory concurrent filing with the N-400, removal of supervisory safeguards before FDNS referrals, expanded red flags including a catch-all provision, heightened scrutiny of multiple submissions, and a new distinction between accepting a diagnosis and accepting the nexus to inability to learn. Applications filed before June 13, 2025, are governed by the prior, more accommodative framework.
What is the difference between an N-648 and a reasonable accommodation?
An N-648 grants a complete exemption from testing. The applicant does not take the tests at all. A reasonable accommodation modifies how the test is administered (extended time, large print, sign language interpreter, off-site testing) but the applicant still takes the test. If an applicant can learn with accommodations, USCIS policy states the N-648 should not be granted. Both can be requested simultaneously when appropriate.
What happens if my N-648 is denied?
The applicant must attempt the English and civics tests. If they fail, a re-examination is scheduled 60 to 90 days later with an opportunity to submit a revised N-648. If the second attempt also fails, the N-400 is denied. The applicant can file Form N-336 within 30 days ($700 filing fee, fee waiver available) for a de novo hearing before a different officer. Federal court review is available after exhausting USCIS remedies.
Can a family doctor complete the N-648?
Yes, any licensed M.D. or D.O. can technically sign the form. However, the evaluator must be experienced in diagnosing relevant impairments, and the clinical rigor required under PA-2025-10 makes it impractical for most primary care physicians. In practice, clinical psychologists with forensic evaluation experience handle the majority of mental health and cognitive N-648 cases because they are trained in the specific testing and nexus documentation USCIS demands.
Can a second N-648 be submitted from a different doctor?
Technically yes, but under PA-2025-10 this is specifically flagged as a credibility concern. Multiple submissions from different providers trigger heightened scrutiny and may be characterized as "doctor shopping." The preferred approach is to have the original evaluator address deficiencies through a supplemental letter or revised form. If a new evaluator is necessary, the new evaluation must explicitly reconcile any differences with the prior submission.
Disclaimer: This article is for educational purposes only and does not constitute legal or clinical advice. No therapist-client relationship is established by reading this content. For legal advice specific to your case, consult with a licensed immigration attorney. For a professional N-648 evaluation, contact Dr. Mantonya. This practice operates independently of any government employment.