im not sure, my understanding of it was you are allowed to remain in the USA until one year after the commencement date, or until 30 days after you have finished training, whichever is sooner. I would like to know how to go about re-entering. DO I haveto go through the whole thing again , I hope not as its costing me nearly 300quid! Im off for my Visa interview tomorow in Belfast! so hope it goeswell :-)