Standards play an important role in achieving sustainable development goals (SDGs).
ISO has developed several standards families like ISO 14000 that relate to environmental management and reducing impacts. National standards bodies help develop domestic standards aligned with international ones. Standards ensure wastewater is treated according to drinking, irrigation and discharge quality levels. They provide guidance on sampling techniques and laboratory competence. The U4SSC KPIs use international smart city standards to measure sustainability progress. However, some challenges remain such as the lack of standards in all needed areas and difficulty getting communities to adhere to standards.