From the USTA website today:https://www.usta.com/Adult-Tennis/USTA-Adult-Senior-Tournaments/seniorinternational/

SENIOR INTERNATIONAL

Attention Super Senior Players:

The USTA is aware of the travel warning posted by the U.S. State Department in regard to travel to southeast Turkey, and we take the safety and security of our players very seriously.  We will continue to monitor the situation. We have also been in communication with the ITF in regard to the possibility of moving this event. If a decision is made by the ITF to move the event to another venue, we will  update the notice posted on this page.

To be considered for selection to the Super Senior Cup Teams, we encourage you to complete the application process by the entry deadline.

Note: The application for super senior team consideration will be posted on April 25 and will be due by May 5, 2016.

Click this link (https://www.usta.com/Adult-Tennis/USTA-Adult-Senior-Tournaments/seniorinternational/) on or after April 25th to reach the application form used to apply for consideration for a super senior (65-80) team. The current guidelines are also posted on that page.