 For example, prior to the implementation of annual revaluations in 1999, long periods between general revaluations had resulted in large increases in rateable values, giving rise to a very significant increase in the rates burden and causing hardship to ratepayers.To soften the impact of these increases, a Public Revenue Protection (Rating) Order was made in March 1977 to limit the increases in the amount of rates payable for the years 1977/78 and 1978/79 to not more than one third of the amount of rates payable for the preceding year.This measure was also known as the “Rates Relief Scheme”.