INTRODUCTION TO ASYCUDA++ Ó UNCTAD - SITE (V1.15) 1.4 Amendment Control Grid Periodically,  amendments  to  this  Reference  Document  will  be  issued.  Each  amendment batch  will  be  serially  numbered  and  dated.  This  Amendment  Control  Grid  is  provided  in order   to   maintain   a   record   of   the   receipt   and   incorporation   of   amendments   into   the Reference Document and thereby ensure that it is kept fully up to date. 1 11 2 12 3 13 4 14 5 15 6 16 7 17 8 18 9 19 10 20