Maybe in HKG ( Cathay ) . I previously replied to ATP on this .
http://www.airbus.com/fileadmin/medi...at-Feb2013.pdf
This suggests that the standard is in fact C , but I believe that there cat D variants . Don't assume that your Airlines Procedures or variants are the standard . Heaven forbid , a "Heavy" is CAT C .
Hope it is not a blow to the ego that that some 321's are CAT D .