The Building Research Establishment has published a report commissioned by the British Cement Association and the Concrete Centre which reviews the changes in the fire design of concrete structures from CP 114 in 1948 to BS 8110 in 1997. The main source of data for the successive revisions of the codes of practice has been the fire resistance tests conducted at the Fire Research Station, Borehamwood from 1936 to 1946. The provisions are often conservative, being based on the assumption that the structural elements are fully stressed at the fire limit state. It is important for the concrete industry to provide further guidance for designers and regulators as fire engineering design moves from prescriptive design solutions towards performance-based procedures. To this end, more research is required on the performance of concrete structures subjected to realistic fire exposures. 10 refs.