What should I do once USCIS approves my I-601A provisional unlawful presence waiver?

Once USCIS approves your Form I-601A, it will inform NVC of its decision. If NVC has received all required forms and documents for your immigrant visa case, NVC will schedule your immigrant visa interview at the U.S. embassy or consulate you designated and notify you of your interview appointment date. You will then need to depart the United States to attend your immigrant visa interview at the designated location. If you fail to depart and attend your immigrant visa interview, the provisional unlawful presence waiver will not take effect, and the approval may no longer be valid.