New Rule: INA “Arrives in the United States” (8 U. S. C. §§ 1158(a)(1), 1225(a)(1)) Means Physical Entry Across the Border, Not Presence at the Border in Mexico

Introduction

Mullin v. Al Otro Lado (609 U. S. ___ (2026)) arises from the federal government’s former “metering” practice at ports of entry on the U.S.–Mexico border, adopted during border surges beginning in 2016. Under metering, CBP officers—positioned on the U.S. side—limited the number of people allowed to enter beyond the border line for inspection and asylum processing each day, in the name of safe and orderly processing.

Respondents (asylum seekers and the advocacy organization Al Otro Lado) brought a putative class action under the Administrative Procedure Act (APA), arguing that metering unlawfully withheld mandatory inspection and access to asylum processing from noncitizens who “arrive” at ports of entry. The District Court granted summary judgment and entered classwide declaratory relief; the Ninth Circuit affirmed in relevant part, holding that a noncitizen “arrives in the United States” when, while standing in Mexico, the person encounters a U.S. official at the border.

The Supreme Court granted review to resolve a narrow but consequential statutory question: when does a noncitizen coming from Mexico “arrive[] in the United States” for purposes of inspection and asylum eligibility—while still in Mexico at the threshold, or only after crossing into U.S. territory?

Summary of the Opinion

The Court (Justice Alito) reversed the Ninth Circuit. It held that a noncitizen standing in Mexico does not “arrive[] in the United States” within the meaning of 8 U. S. C. §§ 1158(a)(1) and 1225(a)(1) merely by attempting to enter and being prevented from doing so. Instead, a person “arrives in the United States” only upon crossing the border.

As a result, the INA does not (i) entitle a person still in Mexico to apply for asylum under §1158(a)(1), or (ii) obligate an immigration officer to inspect that person under §1225(a)(1) and (a)(3). The Court also held the case was not moot notwithstanding the government’s rescission of the metering policy, because the District Court’s declaratory judgment continued to constrain the government within the Ninth Circuit and the government represented it might resume metering under changed conditions.

Justice Thomas concurred, raising separate concerns about whether the lower courts’ classwide declaratory relief functioned as an unlawful end-run around 8 U. S. C. §1252(f)(1) as interpreted in Garland v. Aleman Gonzalez. Justices Sotomayor and Jackson dissented (Justice Kagan joined Sotomayor; Justice Jackson joined Sotomayor and also dissented on justiciability).

Analysis

Precedents Cited (and Their Role)

  • Chafin v. Chafin, 568 U. S. 165:
    Cited to support the Court’s conclusion that the case remained live because reversal would provide “effectual relief.” This anchored the majority’s rejection of mootness where an extant declaratory judgment continued to bind the government within the Ninth Circuit.
  • West Virginia v. EPA, 597 U. S. 697:
    Used (in the majority’s mootness footnote) to articulate the demanding standard for mootness via voluntary cessation—whether it is “absolutely clear” the challenged practice will not recur. The government’s stated desire to retain metering as a tool kept the controversy alive.
  • Keene Corp. v. United States, 508 U. S. 200 (quoting Russello v. United States, 464 U. S. 16):
    Central to the majority’s textual inference from statutory drafting: when Congress uses “attempt” language in some provisions but omits it in others, courts should treat that omission as intentional. That inference supported rejecting respondents’ “attempted arrival” theory.
  • National Assn. of Mfrs. v. Department of Defense, 583 U. S. 109:
    Invoked to reinforce the principle that express inclusions/exclusions matter—bolstering the majority’s contextual comparison across INA provisions that do mention “attempts” or “near a land border.”
  • Knight v. Commissioner, 552 U. S. 181:
    Used for the interpretive move that Congress’s failure to choose “readily available” alternative wording (“arrives at,” “near,” etc.) can support an ordinary-meaning reading of the chosen text.
  • Van Buren v. United States, 593 U. S. 374:
    Cited for the presumption that statutory amendments are meant to have “real and substantial effect,” used to support the majority’s reading that Congress’s 1996 change from “at a land border or port of entry” to “arrives in the United States” signaled a shift toward requiring U.S. presence.
  • Microsoft Corp. v. i4i Ltd. Partnership, 564 U. S. 91; Freeman v. Quicken Loans, Inc., 566 U. S. 624; Lorenzo v. SEC, 587 U. S. 71; United States v. Atlantic Research Corp., 551 U. S. 128:
    These cases collectively supplied the doctrinal framework limiting the canon against surplusage. The majority used them to explain why partial redundancy in §1158(a)(1) (“arrives in” plus “physically present”) is not dispositive when ordinary meaning and statutory context point the other way.
  • United States Postal Service v. Konan, 607 U. S. 391:
    Quoted to emphasize the “cardinal canon” that legislatures mean what they say—deployed to subordinate anti-surplusage arguments to text/ordinary meaning.
  • Morrison v. National Australia Bank Ltd., 561 U. S. 247; RJR Nabisco, Inc. v. European Community, 579 U. S. 325; Abitron Austria GmbH v. Hetronic Int'l, Inc., 600 U. S. 412; Small v. United States, 544 U. S. 385:
    These cases supplied the modern presumption-against-extraterritoriality methodology. The majority invoked the presumption not to override a settled meaning, but as a tie-breaker between two readings—choosing the one that kept inspection/asylum obligations on the U.S. side of the border.
  • Sale v. Haitian Centers Council, Inc., 509 U. S. 155:
    Treated by the majority as foreclosing respondents’ treaty-based argument. The Court relied on Sale’s construction of Article 33 of the Convention to conclude that it does not regulate a nation’s treatment of noncitizens outside its territory.
  • Garland v. Aleman Gonzalez, 596 U. S. 543:
    In Justice Thomas’s concurrence, Aleman Gonzalez is the pivot for arguing that §1252(f)(1) strips lower courts of authority to award classwide injunctive-like relief “to enforce, implement, or otherwise carry out” covered INA provisions—and that declaratory relief may sometimes function as an impermissible substitute.
  • California v. Grace Brethren Church, 457 U. S. 393 (and, by analogy, Samuels v. Mackell, 401 U. S. 66; Younger v. Harris, 401 U. S. 37):
    Also in Justice Thomas’s concurrence, these cases support the proposition that “enjoin or restrain” language can bar declaratory relief where declarations have the same practical effect as injunctions—used to question whether §1252(f)(1) should be read to preclude classwide declarations.
  • Trump v. Hawaii, 585 U. S. 667; Sessions v. Dimaya, 584 U. S. 148; Zivotofsky v. Kerry, 576 U. S. 1:
    In Justice Thomas’s concurrence, these authorities support the view that the President has inherent authority to exclude (and possibly to deport) aliens, raising constitutional-structure concerns with judicial orders that effectively require the Executive to permit entry.
  • Loper Bright Enterprises v. Raimondo, 603 U. S. 369 (dissent); Pulsifer v. United States, 601 U. S. 124 (dissent); Sturgeon v. Frost, 577 U. S. 424 (dissent):
    Justice Sotomayor used these cases chiefly to frame interpretive method (text-in-context) and to underscore the asserted relevance of contemporaneous, consistent regulations as interpretive evidence.

Legal Reasoning

1) Ordinary meaning controls: “arrives in” requires entry

The majority’s core move is linguistic: “arrive” means “reach a destination,” and “in” means “within the bounds” of a place. From those ordinary definitions, a person arrives “in” a place only when the person enters it. The Court rejects the Ninth Circuit’s “threshold” theory under which a person can “arrive in” a place while remaining outside it if blocked by a barrier or official.

2) Statutory context reinforces the ordinary meaning

The Court relied on several contextual cues within the INA:

  • The INA sometimes expressly covers “attempts” to enter (e.g., criminal provisions), but §§1158(a)(1) and 1225(a)(1) do not—suggesting Congress did not equate “attempted entry” with “arrival in.”
  • Congress elsewhere used “near a land border” language, which it did not include here.
  • Congress previously used “at a land border or port of entry” in §1158(a) (1994 ed.) but replaced it with “arrives in the United States” in 1996—implying a meaningful change.

3) The anti-surplusage canon does not overcome text and context

Respondents argued (and the Ninth Circuit agreed) that if “arrives in” requires physical presence, it becomes redundant with “physically present in the United States” in §1158(a)(1). The majority accepted that the point had “some force,” but treated redundancy as (i) not absolute, and (ii) an acceptable byproduct of Congress’s 1996 restructuring—particularly the introduction of expedited removal, which is keyed to “arrival.” The Court expressly preferred “some redundancy” over a reading that, in its view, distorts ordinary meaning.

4) Presumption against extraterritoriality as a tie-breaker

The Court reasoned that respondents’ reading effectively projects U.S. statutory obligations onto conduct occurring while the noncitizen remains outside the United States. Because neither §1158(a)(1) nor §1225(a)(1) unmistakably requires asylum processing/inspection of persons outside U.S. territory, the presumption against extraterritoriality supported the government’s territorial reading.

5) Treaty and policy arguments rejected

The Court used Sale v. Haitian Centers Council, Inc. to reject the argument that the Refugee Convention/Protocol forbids the government’s approach toward persons outside U.S. territory. It also dismissed “perverse incentives” arguments as insufficient to overcome the best reading of the statute, noting metering delays rather than permanently bars entry and that illegal entry carries criminal and immigration consequences.

6) Case remains live despite rescission

Although DHS rescinded metering, the majority found non-mootness because the District Court’s declaration remained operative within the Ninth Circuit and the government stated it might reintroduce metering as a tool. Thus, reversal would provide “effectual relief.”

Impact

1) Border management: metering and “line management” regain statutory space

The immediate doctrinal consequence is that, as a matter of the two INA provisions construed, the government may physically prevent entry at the border line without triggering (i) inspection obligations under §1225(a)(1) or (ii) asylum-application eligibility under §1158(a)(1), so long as the person remains outside the United States. This substantially strengthens the federal government’s legal position should it resume metering (or similar port-access controls) during surges.

2) Litigation posture shifts: challenges must target different hooks

After this decision, plaintiffs challenging border turnbacks will likely pivot away from claims that rely on “arrives in the United States” in §§1158(a)(1)/1225(a)(1), and instead explore other avenues (e.g., different INA provisions, constitutional claims, statutory limits on particular programs, or procedural challenges to new policies). The majority expressly confined itself to the meaning of “arrives in,” leaving other legal theories unresolved.

3) Territoriality baseline for asylum processing

The Court’s use of the presumption against extraterritoriality reinforces a broader interpretive posture: absent unmistakable congressional language, courts will be reluctant to read immigration-processing duties as extending to noncitizens outside U.S. territory even when U.S. officers are the ones creating the barrier at the border.

4) Remedies and §1252(f)(1) remain a looming fault line

Justice Thomas’s concurrence signals that future litigation may center not only on merits, but on whether classwide declaratory relief is an impermissible “end-run” around §1252(f)(1) (especially when sought via APA §706(1)). That question, explicitly reserved by the Court in other contexts, is now teed up as an institutional conflict over lower-court remedial power in immigration cases.

5) Practical effects for asylum seekers

The dissenting opinions stress humanitarian and incentive effects (including pressure toward unlawful entry). While the majority treated those considerations as policy concerns outside its role, the ruling’s practical footprint is nonetheless significant: statutory asylum/inspection triggers now turn on territorial entry, not the act of presenting at the threshold while still outside.

Complex Concepts Simplified

  • “Arrives in the United States”: The Court held it means being inside the country—crossing the border—rather than being at the border on the Mexico side.
  • Inspection (8 U. S. C. §1225): The screening process at entry where officials decide whether someone may be admitted, placed in expedited removal, or otherwise processed.
  • Expedited removal: A fast-track removal process for certain arriving applicants who lack proper documents, with a “credible fear” screen for those who say they fear persecution.
  • Credible fear interview: A preliminary interview to determine whether there is a significant possibility the person could qualify for asylum.
  • Metering: A policy of limiting the number of people allowed to enter for inspection each day at ports of entry, enforced by physically restricting access at the border line.
  • Canon against surplusage: A rule of thumb that courts try to avoid interpretations that make statutory words redundant. The Court said it is helpful but not absolute.
  • Presumption against extraterritoriality: Courts presume Congress does not legislate for conduct outside U.S. territory unless it clearly says so. The Court treated respondents’ reading as giving the INA provisions an extraterritorial effect.
  • Mootness / voluntary cessation: Even if a challenged policy ends, a case can remain live if the defendant may restart it and the court’s ruling would still have practical legal effect.
  • 8 U. S. C. §1252(f)(1): A jurisdiction/authority limitation that generally bars lower courts from entering classwide injunctions that “enjoin or restrain” operation of certain INA provisions; Justice Thomas questioned whether classwide declarations can function as forbidden injunctions.
  • APA §706(1): “unlawfully withheld” vs “unreasonably delayed”: Courts may compel unlawfully withheld agency action, and may also remedy unreasonable delay. The Ninth Circuit characterized metering as “withholding”; the majority did not need to resolve that remedial framing after its merits holding on “arrives in.”

Conclusion

Mullin v. Al Otro Lado establishes a clear territorial trigger for two foundational INA mechanisms: inspection and asylum application eligibility. A noncitizen “arrives in the United States” only upon crossing the border into U.S. territory; a person still in Mexico—even at a port of entry and facing U.S. officers—has no entitlement under §§1158(a)(1) and 1225(a)(1) to be inspected or to apply for asylum. The Court reached that result through ordinary meaning, statutory context, restrained use of the surplusage canon, and the presumption against extraterritoriality. The concurring and dissenting opinions, meanwhile, preview major future battlegrounds: the permissible scope of classwide declaratory relief under §1252(f)(1), and the tension between territorial statutory triggers and the humanitarian/structural aims Congress embedded in the modern asylum system.