10 CFR § 429.19 - Dishwashers.

Note 1 to § 429.19:

Prior to February 17, 2023, certification reports must be submitted as required either in this section or 10 CFR 429.19 as it appears in the 10 CFR parts 200 through 499 edition revised as of January 1, 2022. On or after February 17, 2023, certification reports must be submitted as required in this section.

(a) Sampling plan for selection of units for testing.

(1) The requirements of § 429.11 are applicable to dishwashers; and

(2) For each basic model of dishwashers, a sample of sufficient size shall be randomly selected and tested to ensure that—

(i) Any represented value of estimated annual operating cost, energy or water consumption or other measure of energy or water consumption of a basic model for which consumers would favor lower values shall be greater than or equal to the higher of:

(A) The mean of the sample, where:

$\begin{array}{c}\stackrel{—}{x}=\frac{1}{n}\sum _{i=1}^n{x}_i\\ \text{and,}\stackrel{—}{x}\text{is the sample mean; n is the number of samples; and}{x}_i\text{is the}{i}^{\mathrm{th}}\text{sample;}\end{array}$

Or,

(B) The upper 97 1/2 percent confidence limit (UCL) of the true mean divided by 1.05, where:

$\begin{array}{c}UCL=\stackrel{—}{x}+t_{.975}\left(\frac{s}{\sqrt{n}}\right)\\ \mathrm{And}\stackrel{—}{x}\text{is the sample mean; s is the sample standard deviation; n is the number of}\\ \text{samples; and}{t}_{0.975}\text{is the t statistic for a 97.5\% one-tailed confidence interval with}\\ \text{n-1 degrees of freedom (from Appendix A).}\end{array}$

and

(ii) Any represented value of the energy or water factor or other measure of energy or water consumption of a basic model for which consumers would favor higher values shall be less than or equal to the lower of:

(A) The mean of the sample, where:

$\begin{array}{c}\stackrel{—}{x}=\frac{1}{n}\sum _{i=1}^n{x}_i\\ \text{and,}\stackrel{—}{x}\text{is the sample mean; n is the number of samples; and}{x}_i\text{is the}{i}^{\mathrm{th}}\text{sample;}\end{array}$

Or,

(B) The lower 97 1/2 percent confidence limit (LCL) of the true mean divided by 0.95, where:

$\begin{array}{c}LCL=\stackrel{—}{x}-t_{.975}\left(\frac{s}{\sqrt{n}}\right)\\ \mathrm{And}\stackrel{—}{x}\text{is the sample mean; s is the sample standard deviation; n is the number of}\\ \text{samples; and}{t}_{0.975}\text{is the t statistic for a 97.5\% one-tailed confidence interval with}\\ \text{n-1 degrees of freedom (from Appendix A).}\end{array}$

(b) Certification reports.

(1) The requirements of § 429.12 are applicable to dishwashers; and

(2) Pursuant to § 429.12(b)(13), a certification report shall include the following public product-specific information: The estimated annual energy use in kilowatt hours per year (kWh/yr), the water consumption in gallons per cycle, and the capacity in number of place settings as specified in ANSI/AHAM DW–1–2010 (incorporated by reference, see § 429.4).

(3) Pursuant to § 429.12(b)(13), a certification report shall include the following additional product-specific information:

(i) The presence of a soil sensor, and if yes, the number of cycles required to reach calibration;

(ii) The water inlet temperature used for testing in degrees Fahrenheit ( °F);

(iii) The cycle selected for the energy test and whether that cycle is soil-sensing;

(iv) The options selected for the energy test;

(v) Presence of a built-in water softening system, and if yes, the energy use in kilowatt-hours and the water use in gallons required for each regeneration of the water softening system, the number of regeneration cycles per year, and data and calculations used to derive these values; and

(vi) Indication of whether Cascade Complete Powder or Cascade with the Grease Fighting Power of Dawn was used as the detergent formulation. When certifying dishwashers, other than water re-use dishwashers, according to appendix C1 to subpart B of part 430 of this chapter:

(A) Before July 17, 2023, Cascade Complete Powder detergent may be used as the basis for certification in conjunction with the detergent dosing methods specified in either section 2.5.2.1.1 or section 2.5.2.1.2 of appendix C1 to subpart B of part 430. Cascade with the Grease Fighting Power of Dawn detergent may be used as the basis for certification only in conjunction with the detergent dosing specified in section 2.5.2.1.1 of appendix C1.

(B) Beginning July 17, 2023, Cascade Complete Powder detergent may be used as the basis for certification of newly certified basic models only in conjunction with the detergent dosing method specified in section 2.5.2.1.2 of appendix C1 to subpart B of part 430. Cascade with the Grease Fighting Power of Dawn detergent may be used as the basis for certification only in conjunction with the detergent dosing specified in section 2.5.2.1.1 of appendix C1. Manufacturers may maintain existing basic model certifications made prior to July 17, 2023, consistent with the provisions of paragraph (b)(3)(vi)(A) of this chapter.

[76 FR 12451, Mar. 7, 2011; 76 FR 24766, May 2, 2011, as amended at 77 FR 31962, May 30, 2012; 77 FR 65977, Oct. 31, 2012; 81 FR 90118, Dec. 13, 2016; 87 FR 43977, July 22, 2022; 88 FR 48357, July 27, 2023]