If you are currently outside the United States and are an immediate relative of a U.S. citizen, you can become a permanent resident through consular processing. Consular processing is when USCIS works with the Department of State to issue a visa on an approved Form I-130 petition when a visa is available. You may then travel on the visa and will officially become a permanent resident when admitted at a U.S. port of entry.
For more information on consular processing for immediate relatives of U.S. citizens, see the ?Consular Processing? link to the left under ?Green Card Processes & Procedures.? The Department of State will notify you when you are eligible to apply for an immigrant visa. If you do not apply for an immigrant visa within one year following notification from the Department of State, your petition may be terminated.