draft public utilities water supply amendment regulations 2018 public utilities water supply regulations will be amended to require dishwashers intended for household use that are supplied or offered displayed or advertised for supply in singapore to be registered and affixed with water efficiency labels from 1 oct 2018. singapores mandatory water efficiency labelling scheme mandatory wels was introduced in 2009 to hel consumers make more informed purchasing decisions and encourage suppliers to introduce more water efficient products into the market. this scheme will be extended to include dishwashers with effect from 1 oct 2018. import of dishwashers to singapore is still allowed with the implementation of the mandatory wels for dishwashers but all dishwashers intended for household use must be registered and labelled to provide information on their water efficiency level before they can be supplied or offered displayed or advertised for supply in singapore. in order to register the appliances must be tested according to the stipulated standards clause 8.2 of bs en 50242 2016 bs en 60436 2016 or clause 8.2 of iec 60436 2015 which would be used to determine their water consumption efficiency. dishwashers in singapore will be rated with minimum 1-tick 2-ticks 3-ticks or 4-ticks water efficiency rating with 4-ticks being the most water efficient. there is no model currently in the singapore market which uses more water than the 1-tick model. our stipulated standards clause 8.2 of bs en 50242 2016 bs en 60436 2016 or clause 8.2 of iec 60436 2015 to measure water consumption of dishwashers will be similar to what has been adopted in other countries. based on sales data from 2012 to 2014 as well as a recent check with major suppliers the rating scale of the mandatory wels for dishwashers intended for household use and the number of dishwasher models available in singapore for each of the water efficiency rating bands is tabulated below water efficiency rating requirements wels rating 1-tick 2-ticks 3-ticks 4-ticks water efficiency range in litres per place setting 1.2 to 1.5 litres 0.9 to 1.2 litres 0.6 to 0.9 litres 0.6 litres or less number of dishwasher models in the singapore market which meets the proposed water efficiency ratings 9 38 43 15