Once the marriage has taken place, the couple files the following with USCIS:
Petition for Alien Relative (USCIS Form I-130)
Application to Register Permanent Residence (USCIS Form I-485)
Biographic Information (USCIS Form G-325A)
Affidavit of Support (USCIS Form I-864)
Permission for Work Authorization (Optional) (USCIS Form I-765)
Medical Examination Results (USCIS Form I-693)
Request for Travel Documents (Optional) (USCIS Form I-131)
The appropriate supporting documents
The USCIS filing fees ($1,010 to $1,365).
The USCIS will first contact you first regarding the Biometrics Appointment.
The USCIS will then issue the work authorization and permission to travel approximately 90 days after filing.
The USCIS will contact you next to schedule an interview. This will be anywhere from 2 months to 4 months after filing the initial application.
Following a successful interview, the foreign national spouse will receive a stamp classifying him/her as a Conditional Permanent Resident.
USCIS will mail the Permanent Resident Card (Green Card) approx 4-8 weeks after the successful interview.
The Conditional Status may be dropped by applying for Removal of Conditional Status (USCIS Form I-751) within 90 days of the 2 year anniversary of the granting of Conditional Permanent Residency.