Loz is correct.. you can go to any hospital and have your blood group checked, and register your blood group. You can also give a donation. The problem that we have in this area is that we do not have a blood bank. Sometimes you may hear over the loud speaker system, that a certain blood group is needed,(this is because the hospitals do not have that type in storage). I always tell my friends of ANY blood group,(BUT especially those that have a rare blood group), to make themselves known to the local hospitals. They will take your contact details, and in the event of them needing blood, they will contact you.