The Consular Processing is a method that you can apply for an immigrant visa at a U.S. consulate overseas after your Form I-140 petition is approved and you are not in U.S. If the Form I-140 petition is approved and you are not in the United States, the USCIS will send the approved Form I-140 petition to the National Visa Center of Department of State. The National Visa Center will send you a notice of receipt. When an immigration visa numbers are available for your classification, the National Visa Center will send you another notice indicating when you should submit the immigrant visa processing fees and supporting documentation. The supporting documentation may include:

• a copy of Notice of Approval;
• a copy of your filed I-140 petition;
• a copy of Notice of Receipt of the I-140 petition;
• a copy of your valid passport;
• any criminal history records;
• a copy of your birth certificate;
• a copy of your marriage certificate;
• copies of birth certificates of your children and spouse.

After your fees and supporting documentation are received by the National Visa Center, they will send you a packet of forms and instructions to your foreign address. Thereafter, after submission of those forms, the U.S. consulate near your foreign address will send you an appointment letter including instructions for the medical exam, and it will indicate when you must appear at a U.S. consulate for an interview. After the interview, the U.S. consular will review your application, and decide either granting your visa or requesting the USCIS to reconsider your petition.