The Department has commissioned research into the effects of fluoridation on health. A Systematic Review of Public Water Fluoridation published by the university of York in 2000 found no significant association between, water fluoridation and cancer, but called for further research to strengthen the evidence base. Section 58 of the Water Act 2003 placed a duty on strategic health authorities (SHAs) to monitor the effects of fluoridation schemes on the health of persons living in the fluoridated area and publish reports containing an analysis of the effects on health at four-yearly intervals. We have commissioned the West Midland Public Health Observatory to propose a set of standard indicators, which can be used by SHAs to discharge this duty. We understand that, in compiling its proposals, the Observatory is considering whether data on the incidence of bone cancer held in cancer registries could be included among the indicators.