The FSBPT has posted a notice stating:

ALERT: Effective October 18, 2006 exam scheduling will no longer be available at test sites in the U.S. territories and Canada. If you are currently scheduled to take an exam in the U.S. territories or Canada, you will be able to sit for the exam as scheduled. All future examinations may be scheduled at any of the approximately 300 testing centers in the United States.

Accordingly, it will be exceedingly more difficult for foreign-trained PTs to practice in the US.

http://www.fsbpt.org/exams/index.asp