 South Africa (then not a member of the Commonwealth) set up a Metrication Advisory Board in 1967, New Zealand set up its Metric Advisory Board in 1969, Australia passed the Metric Conversion Act in 1970 and Canada appointed a Metrication Commission in 1971.Metrication in Australia, New Zealand and South Africa was essentially complete within a decade, while metrication in India and Canada is not complete.In Canada, the square foot is still widespread for commercial and residential advertisements and partially in construction because of the close trade relations with the United States.