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Federal Register / Vol. 86, No. 167 / Wednesday, September 1, 2021 / Proposed Rules
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load Size lbs Figure 111.2 Illustrative Depiction of the Three Load Sizes Representing the Normal Distribution of Consumer Loads from the 1995 Procter & Gamble Data In the August 1997 Final Rule, these load size relationships were scaled across the range of 0.8 ft3 to 3.8 ft3
capacities 28 using the equations described above: Minimum load size fixed at 3 lb for all capacity bins;
maximum load size calculated as 4.1
times the mean clothes washer capacity of each capacity bin; and average load size calculated as the mean of the minimum and maximum load sizes. 62
FR 45484, 45504, 45513. Within each capacity bin, the three defined load sizes were intended to approximate a normal distribution of consumer load sizes. As noted, the load size table in Appendix J11997 was extrapolated to 6.0 ft3 in the March 2012 Final Rule, 28 For capacities in the range of 0.0 to 0.8 ft3, a fixed load size of 3 lb was defined for all three test load sizes.

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applicable to both Appendix J1 and Appendix J2.
In the May 2020 RFI, DOE requested data and information on whether the minimum, average, and maximum load size definitions in Table 5.1 are representative of the range of load sizes used by consumers for each capacity bin in the table, particularly for largercapacity RCWs. 85 FR 31065, 31078.
UL commented that in order to make load sizes more equitable for the widening range of clothes washer capacities, all three load sizes should be proportional to capacity, similar to the current definition of maximum load. UL
suggested that minimum and average load sizes could be proportional to the maximum load size e.g., minimum and average load sizes could be 25 percent and 50 percent of maximum load size, respectively. UL, No. 9 at p. 4

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Fixing the minimum load size at 3 lb represents the need for consumers to wash a small load of laundry for example, a single outfit of clothing regardless of the capacity of the clothes washer. The average load size as constructed in Appendix J2 represents the middle of the range of load sizes 29
washed by consumers i.e., the approximate peak of the roughly normal distribution of load sizes. As described below, DOE is proposing in the proposed new Appendix J to define two, rather than three, load sizes, and each of the two load sizes would be defined as a function of capacity.
The CA IOUs recommended that DOE
amend the average and maximum load sizes in Table 5.1 of Appendix J2 to use 29 In effect, the average load size is intended to represent the median load size washed by consumers.

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