Immigration headlines use many legal terms, often interchangeably. They are not interchangeable. An Executive orderA directive from the President to federal agencies and officials about how to run the executive branch and carry out the law. Executive orders are numbered and published in the Federal Register, and they generally bind the executive branch.See it in the glossary is not a regulation, a proposed rule is not in effect, and an injunction is not a final judgment. Knowing which one you are reading tells you whether anything has changed yet.
This glossary groups the terms by who issues them.
Documents from the President
Executive order
A written directive from the President to federal agencies, published in the Federal Register with a number, such as Executive Order 14160 on birthright citizenship. Many immigration executive orders tell agencies to take steps later, so the practical effect depends on what the agencies do next. An executive order cannot override a statute or the Constitution.
Proclamation
A presidential document often used for entry restrictions under section 212(f) of the Immigration and Nationality Act. Proclamations can take effect at a stated time, sometimes within days. The September 18, 2026 extension of the $100,000 Cap-subject and cap-exempt (H-1B)The H-1B category has an annual limit of 65,000 new visas or statuses per fiscal year, plus 20,000 more for people with a U.S. master's degree or higher. Petitions counted toward that limit are cap-subject. Petitions from higher education institutions, their related or affiliated nonprofits, and nonprofit or governmental research organizations are cap-exempt.See it in the glossary entry payment was a proclamation, as we reported.
Presidential memorandum
Similar to an executive order but usually narrower. It directs specific agencies or officials.
Documents from agencies
Proposed rule (NPRM)
A Notice of Proposed Rulemaking (NPRM)A formal announcement of a rule an agency intends to adopt, usually open for public comment before it takes effect.See it in the glossary published in the Federal RegisterThe daily journal of the U.S. government where proposed and final rules, notices and executive orders are published.See it in the glossary. It describes a change an agency wants to make and invites public comment. It is not in effect. The September 11, 2026 proposal to end the 60-day grace periodA discretionary period of up to 60 consecutive days after employment ends during which certain workers in E-1, E-2, E-3, H-1B, H-1B1, L-1, O-1 and TN status, and their dependents, can be treated as maintaining status. It is set out in 8 CFR 214.1(l)(2).See it in the glossary is an example; comments are due November 10, and the current rule still applies, as we explained.
Final rule
The version an agency adopts after reviewing comments. It has an effective date, usually at least 30 days after publication under the Administrative Procedure Act. Once effective, it has the force of law, unless a court blocks it.
Interim final rule
A rule that takes effect without prior notice and comment, justified by a claim of “good cause,” with comments accepted afterward. These are often challenged in court on procedural grounds.
Policy manual update, memo or guidance
Instructions to agency staff on how to apply existing law. The USCIS Policy Manual is the main example. Guidance can change practice quickly without notice and comment, but it cannot contradict statutes or regulations.
Form edition change
USCIS regularly issues new editions of forms. When an edition changes with no grace period, applications on the old edition can be rejected. On September 18, 2026 the new Form I-485Application to Register Permanent Residence or Adjust Status, the form used to apply for a green card from inside the United States.See it in the glossary edition arrived with no grace period, as we reported.
Federal Register notice
A catch-all for official announcements, such as Temporary Protected Status (TPS)A designation that lets nationals of certain countries facing conflict or disaster stay and work in the United States temporarily.See it in the glossary designations, fee adjustments and program changes.
Documents from courts
Temporary restraining order (TRO)
A short-term order, often issued quickly, that pauses government action for days or weeks until a fuller hearing.
Preliminary injunction
An order that blocks a policy while the lawsuit continues. The judge must find the challengers are likely to succeed and would face irreparable harm, among other factors. It is not a final decision on the merits.
Stay under 5 U.S.C. 705
Under section 705 of the Administrative Procedure Act, a court can postpone a rule’s effective date while a case proceeds. The September 14, 2026 order on Duration of status (D/S)The period of stay for F, J and I nonimmigrants, who are admitted for as long as they maintain their program or activity rather than until a fixed date. It appears as D/S on Form I-94.See it in the glossary was a postponement of this kind, covered in our explainer.
Vacatur
A court’s order setting aside an agency action under 5 U.S.C. 706. Vacatur removes the rule or policy, rather than just pausing it for particular people. On August 21, 2026 a court vacated the State Department’s 75-country immigrant visa suspension, as we reported.
Permanent injunction and final judgment
Orders issued at the end of a case. They can still be appealed.
Stay pending appeal
An appeals court’s order pausing a lower court’s decision while the appeal proceeds. If granted, the blocked policy can take effect again temporarily.
Certiorari
The Supreme Court’s decision to hear a case. It takes the votes of four justices. See what happens when the Supreme Court takes a case.
Terms about scope
Nationwide or universal relief
Relief that protects people beyond the named parties. In Trump v. CASA in 2025, the Supreme Court held that federal courts generally lack authority to issue universal injunctions, while leaving open class actions and relief under the Administrative Procedure Act. Our explainer on nationwide injunctions covers what changed.
Class action
A lawsuit on behalf of a defined group. A court can grant relief to everyone in the class. The Supreme Court’s birthright citizenship ruling came in a class case.
How to use this glossary
When you read an immigration headline, find three things: who issued the document, what type it is, and whether it has a current effective date. A proposed rule, an order still awaiting agency action, and a court order that is on appeal all describe situations that can still change. For a step-by-step method, see how to read an immigration announcement.
Terms about timing
Effective date
The date a rule becomes binding. It is usually listed in the “DATES” section of a Federal Register document.
Compliance date
A later date by which people or employers must comply, sometimes used when a rule needs preparation time.
Grace period
A window during which old form editions or procedures are still accepted after a change. Not every change has one.
Sunset
An end date written into a document. The original $100,000 H-1B proclamation carried a one-year sunset before it was extended.
Common questions
Is a USCIS policy alert binding?
Alerts and policy manual updates guide USCIS officers and describe how the agency applies the law. They must be consistent with statutes and regulations, and courts can review them, but in practice they govern how cases are decided.
What is the difference between a stay and an injunction?
An injunction orders a party to do or stop doing something. A stay pauses the effect of an action or a lower court’s order. In immigration rule cases, courts often use section 705 of the Administrative Procedure Act to stay a rule’s effective date.
Can an agency ignore a court order while it appeals?
No. Agencies must comply with valid orders unless a higher court stays them. They often post notices explaining how they are complying.
Where can I find the original documents?
The Federal Register publishes presidential documents and agency rules. Court orders appear on case dockets. Agency sites such as uscis.gov and travel.state.gov post implementation notices.