ENERGY STAR® Program Requirements
for Commercial Dishwashers
Below is the product specification for ENERGY STAR qualified commercial dishwashers. A product must
meet all of the identified criteria if it is to earn the ENERGY STAR.
Definitions: Below are the definitions of the relevant terms in this document.
A. Dishwashing Machine: A machine designed to clean and sanitize plates, glasses, cups, bowls,
utensils, and trays by applying sprays of detergent solution (with or without blasting media
granules) and a sanitizing final rinse.
B. 	 Under Counter Dishwasher: A machine with an overall height 38 inches or less, in which a rack of
dishes remains stationary within the machine while being subjected to sequential wash and rinse
sprays, and is designed to be installed under food preparation workspaces. Under counter
dishwashers can be either chemical or hot water sanitizing, with an internal booster heater for the
latter. For purposes of this specification, only those machines designed for wash cycles of 10
minutes or less can qualify for ENERGY STAR.
C. 	 Stationary Rack, Single Tank, Door Type Dishwasher: A machine in which a rack of dishes
remains stationary within the machine while subjected to sequential wash and rinse sprays. This
definition also applies to machines in which the rack revolves on an axis during the wash and
rinse cycles. Subcategories of stationary door type machines include: single and multiple wash
tank, double rack, pot, pan and utensil washers, chemical dump type and hooded wash
compartment (“hood type”). Stationary rack, single tank, door type models are covered by this
specification and can be either chemical or hot water sanitizing, with an internal or external
booster heater for the latter.
D. 	 Single Tank Conveyor Dishwasher: A warewashing machine that employs a conveyor or similar
mechanism to carry dishes through a series of wash and rinse sprays within the machine.
Specifically, a single tank con