be an organ donor. Filton Blood Centre NHSBT operates the largest blood processing facility in Europe, capable of processing 1 million units a year. The site also houses the International Blood Group Reference Laboratory, one of the world’s leading laboratories in rare blood identification. Notes External links Regulations governing NHS Blood and Transplant, (statutory instrument). 2005 establishments in the United Kingdom NHS special health authorities Health in Bristol Blood banks in the United Kingdom Transfusion medicine