Hello, I've applied for a GC for my parents and they got it approved more than 5 years ago. They have decided not to move to the US and are not interested. I'm applying for a B1/B2 visitor visa now. What is the procedure to this? Do we have to fill a separate form to surrender GC? Will they be rejected a visitor visa, since they have shown intent to migrate before? Any help is appreciated. Vijay.