N-600 (certificate of citizenship)
Written decisions in the mandamus and agency-delay group that name this form or filing, in every court.
2,996 written decisions from 2,731 cases in the whole mandamus and agency-delay group, the group's newest decided November 12, 2026. Updated November 14, 2026 at 1:17 a.m. CT; the Passim connector counts the live collection, which can differ by the day's additions and retirements (which total to quote). Coverage: of the 1,617 public decisions since January 1, 2025 that a CourtListener and GovInfo search for mandamus and agency delay finds, Passim holds 1,406 (87%), 1,039 of them in this group, measured November 14, 2026. Some of what that search finds are not mandamus decisions. Tell us about a decision we're missing.
These are counts of past written decisions and dockets, not predictions of how any case will be decided. A distribution appears only when at least 5 decisions (or 5 dockets) are behind it; smaller groups are listed, not summarized. How it's counted.
How the decisions came out
This page counts 12 of the group's written decisions, from 12 cases; the newest of them was decided March 17, 2026. The line at the top counts the whole group.
12written decisions
12cases they come from
0decisions weigh the TRAC factors
–median months from the application to the suit
Each case counts once in these outcome counts, by its latest decision here. A motion to dismiss denied and a later judgment for the government count as the judgment. How decisions are grouped into cases.
Disposition, by case
Months from the application to the suit
Fewer than five cases state it (2); no distribution is shown.
Months from the application to the court's decision, or to the agency's action where it acted first
14.7 months at the median; half fall between 11.6 and 26.1. 7 decisions state it.
In 4 of these the agency acted before the decision, so the months run to that action, where the delay ended.
Leaves out the 2 decisions holding that the agency had acted where no reading dates that action: their months to the decision are not a delay.
What the suits asked for, by case
- Decide the application2
- Some other action5
- Not recorded5
Forms and filings these cases name
- N-600 (certificate of citizenship)12
- I-290B1
A case that names another form beside this one is counted under both.
Decisions by year
Download these 12 decisions as a spreadsheet (CSV).
Examples
The newest case with each of the most common dispositions, by its latest decision.
E.D. Mo., August 20, 2025. Dismissed; prevailing party: government.
D. Ariz., March 9, 2016. Dismissed in part; some claims go on; prevailing party: each side in part.
D.D.C., December 7, 1936. Government's motion denied; the case goes on; prevailing party: applicant.
Rulings on the government's threshold defenses
How many of the decisions in the group that name this form applied each defense (the defense held) and how many rejected it. A decision counts where it rules on the defense, so most count under none or one. Each count opens those decisions in the list.
| Defense | Applied | Rejected |
|---|---|---|
| Section 1252(a)(2)(B) jurisdiction bar | 0 | 0 |
| Consular nonreviewability | 0 | 0 |
| No duty to re-adjudicate a 221(g) refusal | 0 | 0 |
| Mootness (the agency acted) | 2 | 0 |
| APA adequate-remedy bar to mandamus | 0 | 0 |
This page covers written decisions only: a suit's form is known mostly from its written decision, so counting suits by form would keep mostly the contested ones (how forms are read).