My friends who come for a few months got all the papers last year & were never asked, however, this year when they checked in at their airport in the US they were not going to let them take the dog because they did not do the SXM forms this time. Eventually they talked their way on to the flight but were told it was their problem if SXM would not let the dog in.....Stopped other friends of mine last year in SXM for the papers which fortunately they did have so better to be safe & have the papers then risk not be allowed in....