GB 25502-2017 Minimum allowable values of water efficiency and water efficiency grades for water closets
China
Toilets
Mandatory
Minimum Performance Standard
Entered into force, Adopted, Revised
2010
2017
June 2021
Water
GB 28379-2012 Minimum allowable values of water efficiency and water efficiency grades for flush valve for water closets
China
Toilets
Mandatory
Minimum Performance Standard
Entered into force, Adopted
2013
May 2021
Water
GB 30717-2019 Minimum allowable values of water efficiency and water efficiency grades for squatting pans
China
Toilets
Mandatory
Minimum Performance Standard
Entered into force, Adopted, Revised
2014
2020
June 2021
Water
GB 38448-2019 Minimum allowable values and grades of the energy efficiency and water efficiency for smart water closets
China
Toilets
Mandatory
Minimum Performance Standard
Entered into force, Adopted
2021
May 2021
Water
WaterSense® Specification for Tank-Type Toilets Version 1.2
United States of America*
Toilets
Voluntary
Endorsement Label, Minimum Performance Standard
Entered into force, Adopted
2014
February 2021
Water