A U.S. Lawful Permanent Resident (LPR) or Conditional Resident (CR) who has remained outside the United States for longer than one year, or beyond the validity period of a Re-entry Permit, will require a new immigrant visa to enter the United States and resume permanent residence. You can learn more about Returning Resident Visas on usvisas.state.gov.
If you are married to a U.S. citizen who is currently residing in Australia, you may want to consider having your U.S. citizen spouse file an I-130 petition on your behalf instead.
If you have reviewed the requirements of the SB-1 Visa and believe that you qualify, please email the nearest Consulate where you would like to apply, along with a copy of the DS-117. In Section 3 of Form DS-117, please ensure that you include your Australian home address, telephone number and email address. Do not include your U.S. address. Once your request is received by that office, an appointment will be scheduled and a confirmation email letter will be sent. Please review Prepare your documentation (PDF 153KB)
Contact information for the Consulates: