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

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

(2) For each basic model of cooking products a sample of sufficient size shall be randomly selected and tested to ensure that any represented value of estimated annual operating cost, standby mode power consumption, off mode power consumption, annual energy consumption, integrated annual energy consumption, or other measure of energy consumption of a basic model for which consumers would favor lower values shall be greater than or equal to the higher of:

(i) The mean of the sample, where:

and x̅ is the sample mean; n is the number of samples; and xi is the ith sample;

Or,

(ii) The upper 971⁄2 percent confidence limit (UCL) of the true mean divided by 1.05, where:

And x̅ is the sample mean; s is the sample standard deviation; n is the number of samples; and t0.975 is the t statistic for a 97.5% one-tailed confidence interval with n-1 degrees of freedom (from appendix A).

(b) Certification reports.

(1) The requirements of §429.12 are applicable to conventional cooking tops, conventional ovens and microwave ovens; and

(2) Pursuant to §429.12(b)(13), a certification report shall include the following public product-specific information: For conventional cooking tops and conventional ovens: the type of pilot light and a declaration that the manufacturer has incorporated the applicable design requirements. For microwave ovens, the average standby power in watts.

[76 FR 12451, Mar. 7, 2011; 76 FR 24769, May 2, 2011, as amended at 77 FR 65977, Oct. 31, 2012; 78 FR 4025, Jan. 18, 2013; 78 FR 36368, June 17, 2013; 81 FR 91445, Dec. 16, 2016]