If the USCIS approves my I-526 petition, why is the Consulate application and interview still necessary?

There is a number of reasons why the Consulate application and interview are still required.  However the primary reason is that the U.S. Consulate in your home country must prepare documents for the Visa interview upon approval of the I-526 application.  This procedure is required to ensure that the investor and their family members undergo medical exams, police, security and immigration history checks before the Conditional Permanent Resident Visa is issued.

During the interview process the Consulate will address these issues, request that the investor provide a summary of what the nature of their investment is and discuss the information included in the I-526 application.  If the investor, their spouse and family are already based in the United States, an Adjustment of Status may be applied for by filing form I-485 with the appropriate USCIS office.