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  By SHYAFIQ DZULKIFLI PETALING JAYA: Selangor leads among Peninsula Malaysia states when it comes to reducing water losses. The state has managed to cut non-revenue water (NRW) by nearly four percent over a five-year period from 2018 to 2022. NRW refers to water that has been produced but is lost before it reaches customers. According to the most recent figures from the National Water Services Commission (SPAN), Selangor's NRW, which was at 31.7% in 2018, fell to 27.8% in 2022, representing a 3.9% drop. Perlis is second in NRW reduction with a 2.3% reduction over the same period, while Pahang is third with a 1.4% drop. Reducing NRW will be under greater public scrutiny with new water tariffs coming into effect on Feb 1. Numbers for Sabah and Sarawak are not available as SPAN only regulates the water and sewerage industry for Peninsula Malaysia and the Federal Territory of L