QCMD (Scotland, United Kingdom) is a world leading External Quality Assessment (EQA) / Proficiency Testing (PT) scheme, dedicated to improving the quality of molecular diagnostic assays used in the detection of infectious diseases. QMCD helps to monitor and improve quality within the clinical laboratory by assessing a laboratory's ability to use molecular diagnostic technologies within the routine clinical setting. The QCMD EQA programmes support the clinical laboratory's regulatory requirements and are also educational in application. The reports and practical feedback QCMD provides participants allows them to identify and resolve potential problems whilst monitoring the effectiveness of their laboratory quality assurance processes.