The UK Department of Health supported the establishment of the UK Genetic Testing Network (UKGTN) in 2002. The UKGTN is a collaborative network of NHS molecular genetic laboratories that offer tests for human single gene germ-line disorders. Its objective is to provide high quality and equitable services for patients and their families who require genetic advice, diagnosis and management. The UKGTN has developed a 'Gene Dossier' process to evaluate genetic tests and recommend which tests will be provided by the National Health Service. This paper describes the UKGTN organisation and the 'Gene Dossier' process. A brief review of the UKGTN genetic test evaluation experience is presented.