In 1950 the role of the VO was expanded when it took over responsibility for the valuation of property in England and Wales for rating purposes. Prior to this year it had been the task of each local authority to compile and maintain its own rating list but this had led to inconsistencies in valuations. When in 1948 a new system of government equalisation grants to local authorities was introduced uniformity in rating valuation was essential and this could only be provided by a central organisation such as the VO.