Report by H H Gunson for the National Directorate of the National Blood Transfusion Service regarding the Pilot Trial of Anti-HCV Tests on Blood Donations at three Regional Transfusion Centres (Northeast Thames, Trent and West Midlands). Describes trial whereby 5000 anti-HCV tests were performed during a two week period in December 1989. Objectives were to assess the performance of the test in the daily work routine of the Regional Transfusion Centre and to try to estimate the costs of carrying out the test on a routine basis. Includes summary of results and comments from participants.