|In May 2000 the Independent Expert Group on Mobile Phones (IEGMP), chaired by Sir William Stewart, issued its report on mobile phones and health. The report reviewed epidemiological and experimental studies relevant to an assessment of health effects from exposure to radiofrequency (RF) radiation from the use of mobile phones. It also made a number of recommendations that were designed to address public health concerns and related issues. This 2004 report, by the Board of NRPB, provides further advice to address remaining public concerns about mobile phone technology as well as related technological developments. It also reviews progress on implementing the recommendations in the Stewart Report.