ENERGY STAR Program Requirements for Residential Water Heaters Version 3.2
Canada, United States of America*
Instantaneous Water Heaters, Storage Water Heaters
Voluntary
Endorsement Label
Entered into force, Adopted, Revised
2009
2015
June 2021
Electricity, Gas, Solar
Inmetro Ordinance No. 420 of 04 October 2021
Brazil
Storage Water Heaters
Mandatory
Comparative Label
Entered into force, Adopted, Revised
2012
2021
September 2022
Solar
NOM-027-ENER/SCFI-2018 - Solar water heaters
Mexico
Instantaneous Water Heaters, Storage Water Heaters
Mandatory
Minimum Performance Standard
Entered into force, Adopted
2018
December 2023
Electricity, Gas, LPG, Solar
Procel Seal - Systems and Equipment for Photovoltaic Energy
Brazil
Solar Energy Kits
Voluntary
Endorsement Label
Entered into force, Adopted
2010
September 2022
Solar
Procel Seal - Systems and Equipment for Solar Water Heating
Brazil
Storage Water Heaters
Voluntary
Endorsement Label
Entered into force, Adopted, Revised
2010
September 2022
Solar
Sello FIDE No. 4176 - Solar Inverters
Mexico
Solar Inverters
Voluntary
Endorsement Label
Entered into force, Adopted, Revised
2011
2022
September 2022
Electricity, Solar
WaterSense® High-Efficiency Lavatory Faucet Specification
United States of America*
Taps or Faucets
Voluntary
Endorsement Label, Minimum Performance Standard
Entered into force, Adopted
2007
February 2021
Water
WaterSense® Specification for Flushing Urinals
United States of America*
Urinals
Voluntary
Endorsement Label, Minimum Performance Standard
Entered into force, Adopted
2009
February 2021
Water
WaterSense® Specification for Showerheads
United States of America*
Showers or Showerheads
Voluntary
Endorsement Label, Minimum Performance Standard
Entered into force, Adopted, Revised
2018
2018
February 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