Core Points - The National Standardization Administration has issued a plan for the revision of 18 mandatory national standards, including the first mandatory national standard for membrane bioreactor (MBR) energy and water efficiency, which will fill a gap in the MBR product standards in China [1] - MBR is a key technology in the water treatment sector, and its energy and water efficiency levels directly impact the operational costs and resource consumption of wastewater treatment plants [1] - The implementation of this standard will raise industry entry barriers, eliminate outdated production capacity, and promote the development of MBR technology towards high efficiency and low carbon [1] - The Membrane Industry Association will organize relevant units to develop the standard, conduct systematic research on MBR energy and water efficiency testing methods, and scientifically determine the limit value indicators and grading requirements to ensure the standard's scientific, advanced, and operable nature [1]