Help me to go usa.?

Right now the priority cut off date for F2a petitions is 15 December 2002. That means that only those petitions filed in that category on or before that date are now valid for use to immigrate into the US. So, until your priority date is reached in the Visa Bulletin, which changes from month to month, you aren't eligible to go. As the message says, you and your petitioner, your father I suppose will be notified by the NVC when it is close to being ready. You can check your priority date against the Visa Bulletin each month on your own, if you like at a href="http://travel.state.gov/visa/frvi/bulletin/bulletin_3827.html." rel="nofollow"http://travel.state.gov/visa/frvi/bullet…/a