It depends on how you entered and your current immigration status — some categories like family or employment sponsorship have different eligibility timelines.

If you're on a visa like F-1, H-1B, or are married to a U.S. citizen, you may be able to start the Green Card process right away, assuming other criteria are met.

You generally need to be in valid status and have an eligible pathway (family, employer, asylum, etc.) — consult an immigration attorney to determine the best option for your situation.