Like DOlibash, I am also travelling to Boston in 2 weeks time and only for 4 days. Can I ask them to change the address for GC delivery to some address in Texas (different from port of entry). Currently I gave address of my friend in Boston, but he will be away for 2-3 wekks in May. I am not sure if it will clash the time for GC delivery. So, i want to change address to Texas. Will that be okay?