Approved by China Household Electrical Appliances Association, CHEAA standard T/CHEAA 0027-2023 Guidelines for carbon footprint accounting of household electrical appliances, T/CHEAA 0028-2023 Specific rules for carbon footprint accounting of household electrical appliances-Household refrigerators and T/CHEAA 0029-2023 Specific rules for carbon footprint accounting of household electrical appliances-Room air conditioners was officially released on December 29 2023 and have taken effect since January 1 2024.