forms.
From US Soccer's website:
NOTE: WHEN TRAVELING OUTSIDE THE UNITED STATES, A TEAM MUST FILE 2 SETS OF APPLICATIONS AND HAVE BOTH APPROVED:
(1) A US YOUTH SOCCER APPLICATION TO TRAVEL, INCLUDING ATTACHMENTS, MUST BE
FILED WITH ITS STATE ASSOCIATION OR AFFILIATE AND APPROVED BY THE STATE ASSOCIATION
OR AFFILIATE, AND (2) A US SOCCER APPLICATION FOR FOREIGN TRAVEL AND CERTIFICATION
MUST BE FILED WITH US SOCCER AND APPROVED BY US SOCCER. BOTH APPLICATIONS
MUST BE APPROVED BEFORE A TEAM MAY TRAVEL OUTSIDE THE UNITED STATES.
Travel information can be found here