The Peng Law
F1-F4 Family Preference Immigration
U.S. family preference immigration is divided into four categories, allowing U.S. citizens and green card holders to petition for specific relatives.
U.S. family preference immigration is divided into four categories, allowing U.S. citizens and green card holders to petition for specific relatives. Unlike immediate relative immigration, family preference categories are subject to annual visa number limits, and applicants typically wait years — sometimes over a decade — for a priority date to become current. The four categories are: F1 — unmarried adult children (21+) of U.S. citizens; F2A — spouses and minor children of green card holders; F2B — unmarried adult children (21+) of green card holders; F3 — married adult children of U.S. citizens; F4 — siblings of U.S. citizens. Wait times vary by country of birth and category.
F1: Unmarried adult children (21+) of U.S. citizens, and their minor children
F2A: Spouses and unmarried children (under 21) of green card holders (permanent residents)
F2B: Unmarried adult children (21+) of green card holders
F3: Married adult children of U.S. citizens, and their spouses and minor children
F4: Siblings of U.S. citizens, and their spouses and minor children (petitioner must be at least 21)
All categories require the U.S. citizen or green card holder to file Form I-130 (Petition for Alien Relative)
Determine Category
Based on the petitioner's status (citizen or green card holder) and the beneficiary's relationship, determine the applicable F1-F4 category.
File Form I-130
Submit Form I-130 and relationship evidence to USCIS. The filing date establishes the "Priority Date," which determines the applicant's place in line.
Wait for Priority Date
Monitor the monthly Visa Bulletin published by the Department of State, waiting for the priority date to become Current. Wait times vary by category and country of birth.
NVC Processing
Once the date is current, the case transfers to the NVC (National Visa Center). Pay fees and submit Form DS-260 and supporting documents.
Interview / I-485
Attend an immigrant visa interview at a U.S. consulate abroad; or file Form I-485 for adjustment of status within the U.S.
Receive Green Card
After the consular interview is approved, the immigrant enters the U.S. and receives a green card. For I-485, the card is mailed after approval.
| Stage | Duration |
|---|---|
| I-130 Adjudication | 5–24 months |
| F1 Wait Time | Approximately 7–22 years (varies by country) |
| F2A Wait Time | Approximately 2–5 years |
| F2B Wait Time | Approximately 5–10 years |
| F3 Wait Time | Approximately 12–24 years |
| F4 Wait Time | Approximately 14–24 years |
| NVC + Interview | 3–12 months |
Strategies include: (1) If a green card holder petitioning for a spouse/child (F2A/F2B) naturalizes as a citizen, the spouse and unmarried children under 21 are automatically reclassified as immediate relatives (no wait); (2) the beneficiary may independently pursue employment-based immigration (e.g., EB-1A, NIW) if eligible; (3) Cross-Chargeability rules — if the beneficiary's spouse was born in a country with shorter wait times, the spouse's country of birth may be used; (4) monitor Visa Bulletin trends, as some years see significant advancement.
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Immediate Relative / Conditional Resident
Immediate relatives of U.S. citizens — spouses, unmarried children under 21, and parents — represent the highest priority family immigration category with no annual visa number limitations.
I-485 Adjustment of Status
I-485 Adjustment of Status (AOS) is the legal process under U.S. immigration law that allows a foreign national physically present in the United States to change from nonimmigrant to…
N-400 Naturalization / US Citizenship
Naturalization is the legal process by which a permanent resident (green card holder) obtains U.S. citizenship.
I-751 Remove Conditions on Residence
Form I-751 (Petition to Remove Conditions on Residence) is used to convert a 2-year conditional green card to a standard 10-year permanent green card.
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Reviewed March 2026. This page is general information, not legal advice; rely on written attorney guidance for your own matter.