On December 22, 2021, the Department of Energy (DOE) published a notice of proposed rulemaking to amend the current test procedures appendix, to adopt a new test procedure, to incorporate by reference newly published Association of Home Appliance Manufacturers (AHAM) standards - AHAM DW-1-2020 and DW-2-2020, and to apply certain provisions of the industry standards to the test procedure appendices. The proposed amendments to the current test procedure would establish requirements for water hardness, relative humidity, and loading pattern; update the requirement for ambient temperature, detergent dosage, and standby power measurement; include testing approaches from recently published waivers for dishwashers; and include provisions for a minimum cleaning index threshold to validate the selected test cycle. The proposed new test procedure appendix would additionally include updated annual number of cycles and low-power mode hours for the calculation of energy consumption.