The Sibling of US Citizen category enables US citizens to sponsor their sister, brother, half-sister, half-brother, stepsister, stepbrother or adopted brother or sister living abroad or already residing in the United States to live and work in the US on a permanent basis.
If applying while the foreign sibling is in the US, the foreign sibling must have entered the US legally and continue to maintain lawful status. If applying while the foreign sibling is outside the United States, the foreign sibling must remain outside the US until the visa is granted.
Sibling of U.S. Citizen (F-4) Green Card Entitlements
The Sibling of U.S. Visa (F-4) category provides foreign siblings with the opportunity to reunite with family members living in the United States and become permanent residents. In addition, the spouse and children under 21 years of age of the foreign sibling may accompany the foreign sibling and apply for permanent residence as well.
Permanent Residents have the right to live and work in the United States permanently, leave and return to the United States with few limitations, attend public schools and colleges and become a U.S. citizen when eligible to do so.
Sibling of U.S. Citizen (F-4) Green Card Basic Requirements
To be eligible for a Green Card as a Sibling of a U.S. Citizen, the applicant must be the sister, brother, half-sister, half-brother, stepsister, stepbrother or adopted brother or sister of a U.S. citizen who is at least 21 years of age. This must be proven through the use of the following relevant documents: birth certificates, adoption papers, marriage certificates. Applicants must meet certain health and character requirements.