Family Preference categories are available for specific, more distant, family relationships with a U.S. citizen and some specified relationships with a Lawful Permanent Resident (LPR). Congress has provided for fiscal year numerical limitations on family preference immigrants, shown at the end of each category below. The family preference categories are:

Family First Preference (F1): Unmarried sons and daughters of U.S. citizens, and their minor children, if any. (23,400)
Family Second Preference (F2): Spouses, minor children, and unmarried sons and daughters (age 21 and over) of LPRs. At least seventy-seven percent of all visas available for this category will go to the spouses and children; the remainder is allocated to unmarried sons and daughters. (114,200)
Family Third Preference (F3): Married sons and daughters of U.S. citizens, and their spouses and minor children. (23,400)
Family Fourth Preference (F4): Brothers and sisters of U.S. citizens, and their spouses and minor children, provided the U.S. citizens are at least 21 years of age. (65,000)
Note: Grandparents, aunts, uncles, in-laws, and cousins cannot sponsor a relative for immigration.