Naturalization has a feature most other immigration benefits do not: a deadline written into the statute. If USCIS has interviewed you for citizenship and has not decided your application within 120 days, federal law lets you ask a federal judge to take over. That remedy, under 8 U.S.C. § 1447(b), is often faster and more direct than a general mandamus lawsuit. This guide explains when you can use it, how it differs from mandamus, what happens in court, and what to do if your N-400 is stuck at a different stage.
The 120-day rule
USCIS regulations say a decision on a naturalization application should be made at the interview or within 120 days after it (8 CFR 335.3(a)). The statute adds an enforcement mechanism. Under 8 U.S.C. § 1447(b), if no determination is made within 120 days after the date of the “examination,” the applicant may apply to the U.S. district court for the district where they live. The court then has jurisdiction and “may either determine the matter or remand the matter, with appropriate instructions,” to USCIS.
Courts have consistently read “examination” to mean the naturalization interview, not the whole background-check process (for example, Walji v. Gonzales, 500 F.3d 432 (5th Cir. 2007)). So the 120-day clock generally starts on your interview date.
1447(b) vs. mandamus: which one applies?
| Where your N-400 is stuck | Remedy | What the court can do |
|---|---|---|
| Filed, but no interview scheduled for a long time | Mandamus / APA unreasonable-delay suit | Order USCIS to interview and decide within a set time |
| Interviewed, more than 120 days, no decision | 8 U.S.C. § 1447(b) | Decide the application itself, or send it back with instructions and a deadline |
| Approved, but no oath ceremony scheduled | Mandamus / APA, or a request for a judicial oath where available | Order scheduling of the oath |
| Denied | Form N-336 hearing, then 8 U.S.C. § 1421(c) | After the N-336, the court reviews the denial de novo |
Why 1447(b) is a stronger tool than ordinary mandamus
- A clear trigger. You do not need to convince the judge that the delay is “unreasonable” under the TRAC factors. Once 120 days pass after the interview, the statute gives the court jurisdiction.
- The court can decide the case itself. In practice, most judges remand to USCIS with instructions to decide within a fixed period, often 30 to 60 days. But the court's power to decide puts real pressure on the agency.
- Exclusive jurisdiction. Several circuits hold that once a 1447(b) case is filed, the district court has exclusive jurisdiction. USCIS cannot decide the application on its own unless the court remands it (United States v. Hovsepian, 359 F.3d 1144 (9th Cir. 2004) (en banc); Etape v. Chertoff, 497 F.3d 379 (4th Cir. 2007)). This prevents a quick denial while the case is pending.
Why naturalization cases stall in 2026
- Neighborhood investigations. An August 25, 2026 USCIS policy alert reintroduced neighborhood investigations under INA § 335(a) and stressed verifying applicant information. More field checks mean longer files.
- Expanded vetting across USCIS since 2026, including re-review of some earlier approvals.
- Travel and tax questions. Long trips abroad (six months or more), unfiled taxes or unpaid child support often lead to follow-up requests after the interview.
- Criminal history checks. Even old or minor arrests can require certified court records.
- Revocation referrals. A September 14, 2026 policy alert addressed referrals for revocation of naturalization. That points to closer scrutiny of good moral character and honesty in the application.
Interviewed more than 120 days ago and still waiting? Yellow Law Group files 1447(b) and mandamus cases for naturalization applicants. Learn about our N-400 services or book a free case evaluation.
Before filing: a quick self-check
- Count the days from your interview date, using the date printed on your interview notice and the N-652 results sheet you received at the interview.
- Check whether anything is outstanding. Did you receive Form N-14 asking for more documents? A 1447(b) case can still be filed, but the court will expect you to have responded.
- Review your eligibility honestly. Look at continuous residence, physical presence, good moral character, taxes and any arrests. If the judge decides the case, or USCIS decides it on remand, every weakness will matter.
- Try a service request and a congressional inquiry first. They are free and show diligence.
- Gather your documents: the N-400 receipt notice, interview notice, N-652, any N-14 and your response, and your inquiry history.
How a 1447(b) case unfolds
- Petition filed in the federal district court where you live, naming the responsible USCIS officials and the Secretary of Homeland Security in their official capacities.
- Service on the U.S. Attorney, the Attorney General and the agencies.
- Government response. Often the government agrees to a remand: USCIS decides within a set period, commonly 30 to 60 days, and the case closes. Sometimes it asks for time to complete background checks.
- Court decision if no agreement is reached. The judge either decides the application (which can include an evidentiary hearing) or remands with specific instructions.
- Oath. After approval, USCIS schedules the oath ceremony. In some districts the court can administer the oath.
If your N-400 is denied
A denial is not the end. You can request an administrative hearing before a different USCIS officer by filing Form N-336 within 30 days of the denial (33 days if the decision was mailed). The current fee is $830 on paper or $780 online. If the denial is affirmed, 8 U.S.C. § 1421(c) allows review in federal district court, where the judge reviews the case de novo and is not bound by USCIS's findings. If the denial was based on something fixable, such as a short residence period, refiling after you become eligible may be faster.
Costs and fees in 2026
- N-400 filing fee: $760 on paper, $710 online, $380 reduced fee for eligible households (paper only). A June 23, 2026 proposed rule would end the reduced fee and fee waivers. It was not final as of October 2026.
- Federal court filing fee for a 1447(b) or mandamus case, plus attorney fees.
- N-336 fee: $830 paper, $780 online.
A note for Turkish applicants
Turkish law generally allows dual citizenship, so most Turkish green card holders who naturalize keep their Turkish nationality, subject to Turkish notification rules. Check with a Turkish consulate. For the U.S. side, the most common issues we see in Turkish naturalization files are long stays in Turkey that break continuous residence, unreported foreign income on U.S. tax returns, and old arrests or traffic matters that were never documented. Address these before the interview, not after a delay suit.
When to talk to a lawyer
- More than 120 days have passed since your interview without a decision.
- Your N-400 has been pending for a long time without an interview being scheduled.
- You were approved but have not been scheduled for the oath.
- You received an N-14 or a denial and need to decide on next steps.
- Your file includes long trips abroad, tax issues or any arrest.
Talk to Yellow Law Group. We handle citizenship and naturalization cases from the N-400 through federal court, in English and Turkish. Read our N-400 naturalization guide and our mandamus guide, or book a free case evaluation.
Sources
- 8 U.S.C. § 1447 (Hearings on denials of applications for naturalization)
- 8 U.S.C. § 1421(c) (Judicial review)
- 8 CFR 335.3 (Decision on application)
- United States v. Hovsepian, 359 F.3d 1144 (9th Cir. 2004) (en banc); Etape v. Chertoff, 497 F.3d 379 (4th Cir. 2007); Walji v. Gonzales, 500 F.3d 432 (5th Cir. 2007)
- USCIS Policy Manual updates (August 25 and September 14, 2026 alerts)
- DHS, Naturalization Application Fee Adjustments (proposed rule), 91 FR 37500 (June 23, 2026)
- USCIS, Fee Schedule (Form G-1055), edition 10/16/26
This article is general information, not legal advice, and reflects the law as of October 2026.
