# Family-Based Immigration: Immediate Relatives and Preference Categories

> U.S. citizens and green-card holders can petition for family. The difference between uncapped immediate relatives and the capped preference categories — and why the wait varies so much.

- Source: https://carlosmaury.law/news/family-based-immigration-categories-explained
- Author: Carlos Maury Law
- Published: 2026-06-19
- Topics: family-based immigration, immediate relatives, 8 U.S.C. 1151, family preference categories, 8 U.S.C. 1153

Family is the largest pathway to a green card in the United States. A U.S. citizen or lawful permanent resident can **petition** for certain relatives to immigrate — but not all family relationships are treated the same. The single most important distinction is between **immediate relatives**, who face no annual limit, and the **family preference categories**, which do — and that difference explains why some families wait months and others wait many years. This guide explains how the categories work, in plain English.

This is general information, not legal advice. The categories below come directly from **[8 U.S.C. § 1151](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title8-section1151&num=0&edition=prelim)** and **[8 U.S.C. § 1153](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title8-section1153&num=0&edition=prelim)** — the sections of the Immigration and Nationality Act that define immediate relatives and the family preference categories — as published in the U.S. Code by the Office of the Law Revision Counsel. Whether any of it applies to a specific case is a legal judgment that depends on the facts.

## Immediate relatives: no annual cap

The most favorable category is **immediate relatives.** Under **§ 1151(b)**, the term means:

- the **spouse** of a U.S. citizen,
- the **children** (unmarried and under 21) of a U.S. citizen, and
- the **parents** of a U.S. citizen — but only where the **citizen is at least 21 years old.**

What makes this category so important is that immediate relatives are **not subject to the annual numerical limits** that apply to other family categories. Because there is no cap and no waiting line for visa numbers, immediate-relative cases generally move as fast as the paperwork and processing allow, rather than waiting years for a visa to become available.

The statute also protects certain **widows and widowers**: a person who was the spouse of a U.S. citizen and not legally separated at the citizen's death can remain an immediate relative if they file within the statutory time limit.

## The family preference categories: capped, with waiting lines

Everyone else who qualifies through family falls into the **family preference categories** under **§ 1153(a).** These categories *are* subject to annual numerical limits, which is why they involve waiting — sometimes years, depending on the category and the country. The categories are:

- **First preference (F1):** **unmarried sons and daughters (21 or older) of U.S. citizens.**
- **Second preference (F2):** **spouses and unmarried children of lawful permanent residents** (green-card holders) — split into spouses/minor children and unmarried adult sons and daughters.
- **Third preference (F3):** **married sons and daughters of U.S. citizens.**
- **Fourth preference (F4):** **brothers and sisters of U.S. citizens**, where the citizen is at least 21.

Each category has a fixed annual allotment of visas. Because demand exceeds those numbers, applicants join a **queue based on their priority date** — generally the date the petition was filed — and wait until a visa becomes available for their category and country.

## Why the wait varies so much

The practical result of this structure is that **who petitions for whom** dramatically affects the timeline:

- A U.S. citizen petitioning for a **spouse, minor child, or parent** (immediate relatives) faces **no visa cap.**
- A U.S. citizen petitioning for a **sibling** (F4) may face one of the **longest waits** in the entire system, because that category is heavily oversubscribed.
- A green-card holder can only petition in the **F2** categories — one reason many people choose to naturalize, which opens the faster immediate-relative and other citizen categories.

This is why understanding the categories before filing matters so much: the relationship and the petitioner's status determine not just *whether* someone can immigrate through family, but *how long* it will take.

## Priority dates and the visa bulletin

For the capped categories, the waiting line is tracked through **priority dates.** When a preference petition is filed, it establishes the applicant's place in line. Whether a visa is "available" at any given time is published monthly, and it moves forward (and occasionally backward) over time. Keeping track of a priority date is essential, because it determines when the next steps in the process can happen.

## Why planning ahead pays off

Because the difference between an immediate relative and a preference category can mean the difference between months and years — and because a petitioner's status (citizen vs. permanent resident) changes what is possible — families benefit from understanding the categories and planning early. In some situations, the timing of a naturalization or a child's age can significantly change the options.

## Talk to a lawyer about a family petition

If you are a U.S. citizen or permanent resident hoping to petition for a relative, the specific relationship and circumstances determine the category, the wait, and the strategy. Carlos Maury Law is a national firm of former U.S. Immigration Judges. To talk about your situation, call **(213) 769-0050**. **We speak Spanish.**

## Frequently Asked Questions

### What is the difference between an immediate relative and a family preference category?

Immediate relatives — the spouse, minor children, and parents of a U.S. citizen — are not subject to annual visa caps, so their cases generally move faster. Family preference categories, which cover other relationships, are capped and involve waiting in line based on a priority date.

### Who counts as an immediate relative?

Under 8 U.S.C. § 1151, immediate relatives are the spouse and unmarried children under 21 of a U.S. citizen, and the parents of a U.S. citizen who is at least 21 years old. This category has no annual numerical limit.

### Can a green-card holder petition for family?

Yes, but only in the second preference (F2) categories — spouses and unmarried children of lawful permanent residents. Citizens have access to more categories, including the uncapped immediate-relative category, which is one reason many permanent residents choose to naturalize.

### Why do some family green cards take so long?

The family preference categories under 8 U.S.C. § 1153 have fixed annual visa limits. Because demand exceeds those numbers, applicants wait in a queue based on their priority date. Some categories — like siblings of U.S. citizens — are heavily oversubscribed and can involve very long waits.

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This article is general information only and is not legal advice. Reading it does not create an attorney–client relationship. Immigration law is complex and fact-specific; consult a qualified immigration attorney about your situation. Prior results do not guarantee a similar outcome. Attorney advertising.

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*General legal information from Carlos Maury Law — not legal advice. https://carlosmaury.law/news/family-based-immigration-categories-explained*