N.Y. Comp. Codes R. & Regs. tit. 21, § 509.5 – Commercial dishwashers efficiency standards.

(a) The following definitions refer to commercial dishwashers:

(1) Commercial dishwasher means a machine designed to clean and sanitize plates, pots, pans, glasses, cups, bowls, utensils, and trays by applying sprays of detergent solution (with or without blasting media granules) and a sanitizing rinse and are not a “compact dishwasher” or “standard dishwasher” (capacity less than eight place settings plus six serving pieces as specified in ANSI/AHAM DW-1, using the test load specified in section 2.7 of appendix C in subpart B of 10 CFR 430.32, as incorporated by reference in section 509.61 of this Part).
(2) Stationary rack machine means a dishwashing 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.
1. (i) Under counter means a stationary rack machine with an overall height of 38 inches or less, designed to be installed under food preparation workspaces. Under counter dishwashers can be either chemical or hot water sanitizing, with an internal or external booster heater for the latter.
2. (ii) Single tank, door type means a stationary rack machine designed to accept a standard 20 inch x 20 inch dish rack which requires the raising of a door to place the rack into the wash/rinse chamber. Closing of the door typically initiates the wash cycle. Subcategories of single tank, stationary door type machines include: single rack, double rack, pot, pan and utensil washers, chemical dump type and hooded wash compartment (hood type). Single tank, door type models can be either chemical or hot water sanitizing, with an internal or external booster heater for the latter.
3. (iii) Pot, pan, and utensil means a stationary rack, door type machine designed to clean and sanitize pots, pans, and kitchen utensils.
4. (iv) Glasswashing means a stationary rack, under counter machine specifically designed to clean and sanitize glasses.
(3) Conveyor machine means a dishwashing machine that employs a conveyor or similar mechanism to carry dishes through a series of wash and rinse sprays within the machine.
1. (i) Single tank conveyor means a conveyor machine that includes a tank for wash water followed by a sanitizing rinse (pumped or fresh water). This type of machine does not have a pumped rinse tank. This type of machine may include a prewashing section ahead of the washing section and an auxiliary rinse section, for purposes of reusing the sanitizing rinse water, between the power rinse and sanitizing rinse sections. Single tank conveyor dishwashers can be either chemical or hot water sanitizing, with an internal or external booster heater for the latter.
2. (ii) Multiple tank conveyor means a conveyor type machine that includes one or more tanks for wash water and one or more tanks for pumped rinse water, followed by a sanitizing rinse. This type of machine may include a pre-washing section before the washing section and an auxiliary rinse section, for purposes of reusing the sanitizing rinse water, between the power rinse and sanitizing rinse section. Multiple tank conveyor dishwashers can be either chemical or hot water sanitizing, with an internal or external booster heater for the latter.
3. (iii) Flight type conveyor means a conveyor machine where the dishes are loaded directly on the conveyor rather than transported within a rack. This machine is also referred to as a rackless conveyor.
(4) Hot water sanitizing (high temp) machine means a machine that applies hot water to the surfaces of dishes to achieve sanitization.
(5) Chemical sanitizing (low temp) machine means a machine that applies a chemical sanitizing solution to the surfaces of dishes to achieve sanitization.
(6) Chemical dump type machine means a low temp, stationary rack machine with a pumped recirculated sanitizing rinse.
(7) Dual sanitizing machine means a machine designed to operate as either a high temp or low temp machine.
(8) Wash mode means for stationary rack machines, the dishwasher is in wash mode when it is actively running a cycle and is spraying wash water (i.e., water that is neither part of the sanitizing rinse, post sanitizing rinse, nor the prewashing unit).
(9) Rinse mode means for stationary rack machines, the dishwasher is in rinse mode when it is at the end of the actively running cycle and is spraying hot water or chemical sanitizing rinse water or a postsanitizing rinse. If there is a post-sanitizing rinse, it shall be included in rinse mode.
(10) Dwell mode means for stationary rack machines, the dishwasher is in dwell mode when it is actively running a cycle but is not in wash or rinse modes.
(11) Idle mode means for all dishwasher types, the dishwasher is in idle mode when it is not actively running but is still powered on and ready to wash dishes at the required temperature.
(12) Energy saver mode means a dishwasher is in energy saver mode if the dishwasher is manually converted or, after inactivity, the dishwasher automatically converts to a setting that consumes less energy than it does in idle mode (not all dishwashers have this feature).
(13) Idle energy rate means the rate of energy consumed by the dishwasher while “holding” or maintaining wash tank water at the thermostat(s) set point during the time period specified in the ENERGY STAR Test Method for Commercial Dishwashers (Rev. May-2012), as incorporated by reference in section 509.61 of this Part.
(14) Product family means the variations of one model offered within a single product line with design differences limited to: finish/color; length of pre-wash section, voltage, and orientation (e.g., corner, straight through models). Individual models represented by a product family must have the same sanitizing and post sanitizing rinse water and idle energy consumption.
(15) Included products means the products that meet the definition of a commercial dishwasher as specified herein are subject to the requirements of subdivision (b) of this section, with the exception of products listed in paragraph (16) of this subdivision. The following product types are eligible: under counter; single tank, door type; single tank conveyor; multiple tank conveyor and flight type machines. Glass washing machines; pot, pan, and utensil machines; and dual sanitizing machines are also eligible. Only those under counter machines designed for wash cycles of 10 minutes or less are eligible for New York compliance. This standard only covers electric models.
(16) Excluded products means dishwashers intended for use in residential or laboratory applications are exempted from New York standards under this product specification. Steam, gas, and other non-electric models are also exempted from the standard.
(17) Water consumption is measured based on dishwasher type, see standard requirements below.
(b) Standard requirements for commercial dishwashers.

(1) Energy and water efficiency requirements: Table 3: Requirements for Commercial Dishwashers *Idle results should be measured with the door closed and represent the total idle energy consumed by the machine including all tank heater(s) and controls. Booster heater (internal or external) energy consumption should not be part of this measurement unless it cannot be separately monitored per the ENERGY STAR Test Method. **GPR = gallons per rack; GPSF = gallons per square foot of rack; GPH = gallons per hour; x = maximum conveyor speed (feet/min as verified through NSF 3 certification) x conveyor belt width (feet).

Machine Type	High Temp Efficiency Requirements	Low Temp Efficiency Requirements
	Idle Energy Rate*	Water Consumption**	Idle Energy Rate*	Water Consumption**
Under Counter	≤ 0.30 kW	≤ 0.86 GPR	≤ 0.25 kW	≤ 1.19 GPR
Stationary Single Tank Door	≤ 0.55 kW	≤ 0.89 GPR	≤ 0.30 kW	≤ 1.18 GPR
Pot, Pan, and Utensil	≤ 0.90 kW	≤ 0.58 GPSF	n/a	n/a
Single Tank Conveyor	≤ 1.20 kW	≤ 0.70 GPR	≤ 0.85 kW	≤ 0.79 GPR
Multiple Tank Conveyor	≤ 1.85 kW	≤ 0.54 GPR	≤ 1.00 kW	≤ 0.54 GPR
Single Tank Flight Type	Reported	GPH ≤ 2.975x + 55.00	n/a	n/a
Multiple Tank Flight Type	Reported	GPH ≤ 4.96x + 17.00	n/a	n/a

(2) User-adjustable conveyor machines: conveyor machines that offer multiple speeds adjustable by the end user must meet the ENERGY STAR V2.0 requirements, as incorporated by reference in section 509.61 of this Part, using the maximum conveyor speed setting tested to and certified to NSF/ANSI Standard 3, as incorporated by reference in section 509.61 of this Part. Water consumption values using the maximum conveyor speed setting shall be used for qualification purposes. Water consumption using the slowest conveyor speed shall also be reported to EPA.
(3) Dual sanitizing machines: as defined in paragraph (a)(7) of this section, these machines shall meet both the high temp and low temp requirements presented in Table 3, in paragraph (1) of this subdivision.
(4) Dual purpose door type machines: machines designed to be used either as a standard door type machine or a pot, pan, and utensil machine shall meet the performance requirements for both of those subcategories.
(5) Post sanitizing machines: machines offering a post sanitizing rinse will be evaluated for New York compliance with the post sanitizing rinse turned on during testing. The final rinse water consumption will include both sanitizing and post sanitizing rinses.
(6) Industry standard certifications: all machines shall be certified to the NSF/ANSI 3-2010, as incorporated by reference in section 509.61 of this Part, the NSF/ANSI 3-2019, as incorporated by reference in section 509.61 of this Part, or the current NSF/ANSI 3 Standard, Commercial Warewashing Equipment, as incorporated by reference in section 509.61 of this Part.
(7) Significant digits and rounding:
1. (i) All calculations shall be carried out with directly measured (unrounded) values.
2. (ii) Unless otherwise specified, compliance with specification limits shall be evaluated using directly measured or calculated values without any benefit from rounding.
3. (iii) Directly measured or calculated values that are submitted for rep.
  (c) Test procedures for assuring compliance with the standards established in subdivision (b) of this section.
(1) Representative models shall be selected for testing per the following requirements:
1. (i) For qualification of an individual product model, the representative model shall be equivalent to that which is intended to be marketed and labeled as ENERGY STAR.
2. (ii) For qualification of a product family, the most energy consumptive unit within the product family as defined in paragraph (a)(16) of this section shall serve as the representative model.

(2) When testing commercial dishwashers, the following test methods shall be used: Table 4: Test Method for Commercial Dishwashers

Requirement	Test Method Reference
Idle Energy Rate, GPH, GPR, and GPSF (all machines)	ENERGY STAR V2.0 Test Method for Commercial Dishwashers (Rev. May-2012), as incorporated by reference in section 509.61 of this Part
OR
Dishwasher Category	Test Method Reference
Under-counter; stationary single tank door; pot-pan-utensil	ASTM F1696-20, Standard Test Method for Energy Performance of Stationary-Rack, Door-Type Commercial Dishwashing Machines, as incorporated by reference in section 509.61 of this Part
Single tank conveyor; multiple tank conveyor; single tank flight; multiple tank flight	ASTM F1920-20, Standard Test Method for Energy Performance of Rack Conveyor Commercial Dishwashing Machines, as incorporated by reference in section 509.61 of this Part