American relative immigrant visa passed, but supplementary materials are needed. How long do I have to wait to get my visa?

You or your agent must wait at least 60 to 120 days from the date of interview or the date of submitting supplementary documents (whichever comes later) to check the visa status.

Most administrative procedures will be completed within 60 days after the visa interview. If further administrative processing is required, the time required will depend on the specific circumstances of each application.