`[Federal Register Volume 90, Number 12 (Tuesday, January 21, 2025)]
[Rules and Regulations]
[Pages 6784-6795]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-00987]



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DEPARTMENT OF ENERGY

10 CFR Parts 429, 430, and 431

[EERE-2023-BT-CE-0001]


Energy Conservation Program: Energy Conservation Standards and 
Test Procedures for Certain Consumer Products and Commercial Equipment; 
Corrections

AGENCY: Office of Energy Efficiency and Renewable Energy, Department of 
Energy.

ACTION: Final rule; correcting amendments.

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SUMMARY: The U.S. Department of Energy (``DOE'') is publishing a final 
rule to amend and correct certain energy conservation standards and 
test procedures of consumer products and commercial and industrial 
equipment, as described in sections I and II of this document. The 
changes addressed in this document are technical in nature, and neither 
the errors nor the corrections in this document affect the substance of 
any rulemaking or any conclusions reached in support of any final rule.

DATES: Effective Date: January 21, 2025. The incorporation by reference 
of certain material listed in this rule was approved by the Director of 
the Federal Register as of September 30, 2022, April 24, 2023, June 5, 
2023, and June 14, 2023.

FOR FURTHER INFORMATION CONTACT: 
    Mr. Troy Watson, U.S. Department of Energy, Office of Energy 
Efficiency and Renewable Energy, Building Technologies Office, EE-5B, 
1000 Independence Avenue SW, Washington, DC 20585-0121. Telephone: 
(202) 449-9387. Email: [email protected].
    Mr. Eric Stas. Department of Energy, Office of the General Counsel, 
GC-33, 1000 Independence Avenue SW, Washington, DC 20585-0121. 
Telephone: (202) 586-4798. Email: [email protected].

SUPPLEMENTARY INFORMATION:

Table of Contents

I. Background
    A. Automatic Commercial Ice Makers
    B. Integrated Light-Emitting Diode Lamps
    C. General Service Lamps
    D. Uninterruptible Power Supplies
    E. Water Heaters
    F. Portable Air Conditioners
    G. Refrigerators, Refrigerator-Freezers, and Freezers
    H. Commercial Package Air Conditioners and Heat Pumps
    I. Distribution Transformers
    J. Walk-In Coolers and Walk-In Freezers
    K. Circulator Pumps
    L. Commercial and Industrial Pumps
II. Need for Correction
    A. Automatic Commercial Ice Makers
    B. Integrated Light-Emitting Diode Lamps
    C. General Service Lamps
    D. Uninterruptible Power Supplies
    E. Water Heaters
    F. Portable Air Conditioners
    G. Refrigerators, Refrigerator-Freezers, and Freezers
    H. Commercial Package Air Conditioners and Heat Pumps
    I. Distribution Transformers
    J. Walk-In Coolers and Walk-In Freezers
    K. Circulator Pumps
    L. Commercial and Industrial Pumps
III. Procedural Issues and Regulatory Review
IV. Approval of the Office of the Secretary

I. Background

A. Automatic Commercial Ice Makers

    On November 1, 2022, DOE published a final rule in the Federal 
Register amending the test procedure for automatic commercial ice 
makers (``ACIMs'') (87 FR 65856; ``November 2022 ACIM Final Rule''). As 
part of the November 2022 ACIM Final Rule, DOE codified certification 
requirements for ACIMs at title 10 of the Code of Federal Regulations 
(``CFR'') 429.45. However, in the publication of the November 2022 ACIM 
Final Rule, DOE inadvertently updated 10 CFR 429.45(a)(2)(ii) with a 
typographical error in the formula for the upper 95-percent confidence 
limit (``UCL'') which used a ``minus'' sign instead of a ``plus'' sign 
between the terms of the UCL formula (see 87 FR 65856, 65899 (Nov. 1, 
2022)). This document identifies and corrects this error.

B. Integrated Light-Emitting Diode Lamps

    On July 1, 2016, DOE published a final rule in the Federal Register 
amending the test procedure for integrated light-emitting diode 
(``LED'') lamps (81 FR 43404; ``July 2016 Integrated LED Lamps Final 
Rule''). In the July 2016 Integrated LED Lamps Final Rule, DOE adopted 
the requirement that testing of lumen output, input power, lamp 
efficacy, power factor, correlated color temperature (``CCT''), color 
rendering index (``CRI''), lifetime, and standby mode power (if 
applicable) for integrated LED lamps be conducted by test laboratories 
accredited by National Voluntary Laboratory Accreditation Program 
(``NVLAP'') or an accrediting organization recognized by the 
International Laboratory Accreditation Cooperation (``ILAC''), as 
codified at 10 CFR 429.56(b)(2). Further, in the July 2016 Integrated 
LED Lamps Final Rule, DOE provided that it would state directly that 
accreditation by an Accreditation Body that is a signatory member to 
the ILAC Mutual Recognition Arrangement (``MRA'') is an acceptable 
means of laboratory accreditation. 81 FR 43404, 43419 (July 1, 2016). 
However, DOE inadvertently did not update the certification 
requirements for integrated LED lamps in 10 CFR 429.56(b)(2) to reflect 
this statement. This document identifies and corrects this error by 
specifying in 10 CFR 429.56(b)(2) that the certification report must 
include the testing laboratory's ILAC accreditation body's 
identification number or other approved identification assigned by the 
ILAC accreditation body.
    Additionally, in the July 2016 Integrated LED Lamps Final Rule, DOE 
inadvertently updated 10 CFR 429.56(b)(2) to specify that lifetime be 
reported in years. As indicated in the determinations of their 
represented values in 10 CFR 429.56(a)(1)(ii)(D) and 10 CFR 
429.56(a)(2), respectively, lifetime must be reported in hours and life 
must be reported in years. This document identifies and corrects this 
error.

C. General Service Lamps

    On August 31, 2022, DOE published a final rule in the Federal 
Register amending the test procedure for general service fluorescent 
lamps (``GSFLs''), incandescent reflector lamps (``IRLs''), and general 
service incandescent lamps (``GSILs'') (87 FR 53618; ``August 2022 
Lamps Final Rule''). In the August 2022 Lamps Final Rule, DOE 
reorganized 10 CFR 429.27 to apply only to GSFLs (as opposed to GSFLs, 
GSILs, and IRLs), establishing new sections 10 CFR 429.55 for IRLs and 
10 CFR 429.66 for GSILs, so that each lamp type (i.e., GSFL, IRL, GSIL) 
has its own section within 10 CFR part 429. 87 FR 53618, 53629 (August 
31, 2022). However, as part of the August 2022 Lamps Final Rule, DOE 
inadvertently did not update the certification requirements for general 
service lamps (``GSLs'') in 10 CFR 429.57 to change references to 10 
CFR 429.27 to reflect this reorganization. Specifically, 10 CFR 
429.57(a)(2), (a)(5) and (b)(3) refer to certification requirements for 
GSILs at 10 CFR 429.27 when they should reference 10 CFR 429.66. This 
document identifies and corrects this error.
    Additionally, in the August 2022 Lamps Final Rule DOE clarified the 
definition of ``rated wattage'' in 10 CFR 430.2, which included 
replacing the references to appendix R with references to the relevant 
sections in 10 CFR part 429. 87 FR 53618, 53629 (August 31, 2022). 
However, in making

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this update, with respect to GSILs, DOE inadvertently referenced 10 CFR 
429.27 instead of 10 CFR 429.66 (see paragraph (2) of the ``rated 
wattage'' definition in 10 CFR 430.2). This document identifies and 
corrects this error.

D. Uninterruptible Power Supplies

    On September 8, 2022, DOE published a final rule in the Federal 
Register amending the battery charger portion of the battery charger 
and uninterruptible power supply (``UPS'') test procedure at 10 CFR 
part 430, subpart B, appendix Y (``appendix Y'') (87 FR 55090, 
``September 2022 Battery Charger Final Rule''). The final rule also 
created a new test procedure for both products at 10 CFR part 430, 
subpart B, appendix Y1 (``appendix Y1'') that expanded the scope of the 
battery charger test method and established separate metrics for active 
mode, standby mode, and off mode for all battery chargers other than 
uninterruptible power supplies. Manufacturers must continue to use the 
amended test procedure in appendix Y until the compliance date of any 
new final rule establishing amended energy conservation standards based 
on the newly established test procedure in appendix Y1 (although early 
compliance is permitted). 87 FR 55090, 55122 (Sept. 8. 2022). After the 
compliance date of new standards for battery chargers other than UPSs 
using these new metrics, manufacturers may no longer use appendix Y and 
instead will be required to determine compliance using the updated test 
procedure at appendix Y1. Id. at 87 FR 55125.
    On April 19, 2024, DOE published a final rule in the Federal 
Register (``April 2024 UPS Final Rule'') amending the UPS test 
procedure in appendix Y and appendix Y1, which incorporated by 
reference relevant portions of the latest version of the relevant 
industry testing standard, harmonized the current DOE definitions with 
the definitions in the latest version of the industry standard, and 
added a no-load testing condition as an optional test. 89 FR 28581.
    DOE has identified a reference error in both DOE's UPS enforcement 
provisions at 10 CFR 429.134(o), as well as appendix Y of the UPS test 
procedure. In 10 CFR 429.134(o), and in sections 0.1(d), 0.1(p), 
0.1(q), 0.1(r), and 4.3.4 of appendix Y, DOE incorrectly referenced 
sections 2.28.1 through 2.28.3 of appendix Y for UPS architecture 
tests. The correct reference should be sections 2.27.1 through 2.27.3 
of appendix Y. DOE additionally notes that the UPS enforcement 
provisions should also have been updated to address how to determine 
the UPS architecture of a unit tested using appendix Y1. This document 
identifies and corrects these reference errors.
    In the April 2024 UPS Final Rule, DOE also updated the introductory 
note to appendix Y. 89 FR 28581, 28592 (April 19, 2024). DOE intended 
to replace the introductory note, to add an introductory table, and to 
remove the introductory text to appendix Y. However, as written, the 
final rule did not remove the now-obsolete introductory text. This 
document identifies and removes this text.

E. Water Heaters

    The test procedure established for consumer water heaters and 
residential-duty commercial water heaters is located in DOE's 
regulations at 10 CFR part 430, subpart B, appendix E, ``Uniform Test 
Method for Measuring the Energy Consumption of Water Heaters'' 
(``appendix E''), and it specifies that tests must be conducted under 
specific conditions, depending on the type of water heater being 
tested. On June 21, 2023, the DOE published a final rule in the Federal 
Register adopting an amended test procedure for consumer water heaters 
and residential-duty commercial water heaters (88 FR 40406; ``June 2023 
Water Heater Final Rule'').
    In the preamble to the June 2023 Water Heater final rule, DOE 
discussed that it was amending the ambient air temperature tolerances 
required for tests conducted on all water heaters other than heat pump 
water heaters (i.e., for ``non-heat pump water heaters''), which was to 
be specified at section 2.2.1 of appendix E. 88 FR 40406, 40435-40436 
(June 21, 2023). Specifically, in section III.C.4 of the June 2023 
Water Heater Final Rule, DOE explained that it had initially proposed 
in a notice of proposed rulemaking (``NOPR'') published in the Federal 
Register on January 11, 2022 (87 FR 1554; ``January 2022 Water Heater 
NOPR'') to update the ambient temperature requirement for non-heat pump 
water heaters to require that the ambient temperature during testing 
must be an average of 67.5 [deg]F  2.5 [deg]F, with a 
maximum deviation of 67.5 [deg]F  5 [deg]F, as opposed to 
only a maximum deviation of 67.5 [deg]F  2.5 [deg]F as 
specified in the test procedure at that time. In the June 2023 Water 
Heater Final Rule, DOE concluded that, after considering comments on 
the January 2022 Water Heater NOPR, it was adopting the changes to 
ambient air temperature and relative humidity tolerances as proposed. 
88 FR 40406, 40435-40436 (June 21, 2023).
    However, the relevant regulatory text of section 2.2.1 in appendix 
E, as amended by the June 2023 Water Heater Final Rule, does not 
reflect these amended tolerances and improperly maintained the values 
specified under the previous version of DOE's test procedure for the 
subject water heaters. This document identifies and corrects this 
error.
    DOE also discovered a typographical error in section 6.3.2 of 
appendix E. Section 6.3.2 of appendix E addresses the calculations for 
mass of water removed during each draw of the 24-hour simulated-use 
test. In that section, it is written that the volume of water must be 
multiplied by the density of the water during each draw of the 24-hour 
simulated-use test to arrive at the mass of water removed during each 
draw of the 24-hour simulated-use test. Throughout appendix E, the 
symbol [rho] (the lowercase symbol for the Greek letter ``rho'') is 
used to represent density, including the definition for these values in 
section 6.3.2 of appendix E. However, the first equation in section 
6.3.2 of appendix E incorrectly uses the term Pdel,i, using 
the letter P rather than the symbol [rho]. This document identifies and 
corrects this error.
    Additionally, a typographical error occurred which inadvertently 
changed an equation in section 6.3.6 of appendix E. Section 6.3.6 of 
appendix E addresses the calculation of adjusted daily water heating 
energy consumption for water heaters with rated storage volumes greater 
than or equal to 2 gallons, as well as circulating water heaters. In 
that section, it is written that the difference between the energy used 
to heat water in the test and the energy required to heat the same 
quantity of water over a 67 [deg]F temperature rise (altogether 
represented by the term QHWD) must be added to the adjusted 
daily water heating energy consumption value to arrive at the daily 
energy consumption value. However, the equation printed directly below 
shows the terms being subtracted instead of being added together as the 
text had indicated. The equation in section 6.3.6 of appendix E 
specifically reads ``Qdm = Qda - 
QHWD'' instead of properly reading ``Qdm = 
Qda + QHWD.'' This document identifies and 
corrects this error as well.
    Another printing error caused the inadvertent deletion of the 
mathematical equation from section 6.4.7 of appendix E that identifies 
how to calculate the annual fossil fuel energy consumption of a water 
heater with rated storage volume less than 2 gallons. The annual fossil 
fuel energy consumption for such a product is equal to the total annual 
energy consumption

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minus the electrical energy consumption (adjusted from kilowatts to Btu 
per hour). Thus, the equation should read, ``Eannual,f = 
Eannual - (Eannual,e x 3,412)'' as it did in 
section 6.4.6 of appendix E prior to the June 2023 Water Heater Final 
Rule which renumbered the section. This document identifies and 
corrects this error.
    This document also identifies and corrects typographical errors 
pertaining to the amended standards for water heaters found at 10 CFR 
430.32(d). On May 6, 2024, DOE published a final rule in the Federal 
Register adopting amended energy conservation standards for consumer 
water heaters (89 FR 37778; ``May 2024 Water Heater Final Rule''). 
Throughout the May 2024 Water Heater Final Rule, DOE discussed 
transitioning standards for consumer water heaters to be based on an 
effective storage volume metric, as opposed to the previously used 
rated storage volume metric. Table I.1 in the May 2024 Water Heater 
Final Rule demonstrated how the amended standards (with compliance 
required beginning on May 6, 2029) would be based on effective storage 
volume. Id. at 89 FR 37780-37781. However, when adopting these 
standards into the regulatory text codified at 10 CFR 430.32(d)(2), the 
table inadvertently maintained a reference to the rated storage volume 
metric. Id. at 89 FR 37944. This document corrects the amended 
standards table to read ``Effective storage volume and input rating (if 
applicable)'' instead of ``Rated storage volume and input rating (if 
applicable)'' at 10 CFR 430.32(d)(2).
    In addition, the current standards, which use the rated storage 
volume metric, remain applicable until May 6, 2029. The May 2024 Water 
Heater Final Rule maintained these standards at 10 CFR 430.32(d)(1). 
However, the adopted regulatory text at 10 CFR 430.32(d)(1) included a 
typographical error with respect to the compliance dates for the 
standards therein. Section (d)(1) of 10 CFR 430.32 reads ``The uniform 
energy factor of water heaters manufactured May 6, 2029 shall not be 
less than the following'' instead of ``The uniform energy factor of 
water heaters manufactured before May 6, 2029 shall not be less than 
the following'' (emphasis added on the word ``before''). This document 
corrects this error as well.

F. Portable Air Conditioners

    On May 15, 2023, DOE published a final rule in the Federal Register 
establishing a new test procedure for portable air conditioners 
(``ACs'') at 10 CFR part 430, subpart B, appendix CC1, ``Uniform Test 
Method for Measuring the Energy Consumption of Portable Air 
Conditioners'' (``appendix CC1'') (88 FR 31102; ``May 2023 Portable AC 
Final Rule''). This test procedure must be used to determine compliance 
with any amended portable AC energy conservation standards that use the 
Annualized Energy Efficiency Ratio (``AEER'') metric. 88 FR 31102, 
31106 (May 15, 2023). In the May 2023 Portable AC Final Rule, as part 
of appendix CC1, DOE adopted an updated seasonally adjusted cooling 
capacity (``SACC'') calculation that consists of a weighted average of 
the cooling capacities measured at the 95 [deg]F and 83 [deg]F test 
conditions, each adjusted for duct heat transfer capacity losses and 
infiltration air capacity losses. For single-speed portable ACs, the 
adjusted cooling capacity for the 83 [deg]F test condition is also 
multiplied by a load factor of 0.6 for single-duct units and 0.5363 for 
dual-duct units. 88 FR 31102, 31114 (May 15, 2023).
    DOE has identified an error in section 5.1 of appendix CC1, which 
contains the calculations of adjusted cooling capacity for portable ACs 
at the 95 [deg]F and 83 [deg]F operating conditions. The identified 
error is in the formula for adjusted cooling capacity of single-duct 
single-speed units at 83 [deg]F (``ACC83''), which as 
published includes the term ``Qinfiltration_95,'' This term 
was included erroneously, and the formula should have used the term 
``Qinfiltration_83'' to reflect the infiltration heat 
transfer at 83 [deg]F rather than at 95 [deg]F as is currently shown. 
This erroneous term is also included in the amplifying instruction for 
single-speed single-duct units in that section, which should reference 
the Qinfiltration_83 value in addition to 
Qinfiltration_95. This document identifies and corrects 
these errors.

G. Refrigerators, Refrigerator-Freezers, and Freezers

    On January 17, 2024, DOE published a direct final rule in the 
Federal Register adopting amended energy conservation standards for 
refrigerators, refrigerator-freezers, and freezers (89 FR 3026; 
``January 2024 Refrigerator Direct Final Rule''). In the publication of 
the January 2024 Refrigerator Direct Final Rule, DOE inadvertently 
updated 10 CFR 430.32(a)(1) with a typographical error which states the 
current energy conservation standards for refrigerators, refrigerator-
freezers, and freezers ``apply to products manufactured on or before 
September 15, 2014.'' This document identifies and corrects this error, 
with text that reads ``standards apply to products manufactured on or 
after September 15, 2014.''
    In the January 2024 Refrigerator Direct Final Rule, DOE also 
inadvertently updated 10 CFR 430.32(a)(1) with another typographical 
error which lists the equation for the maximum energy use for product 
class 4I-BI as ``10.22AV + 441.4.2.'' This document identifies and 
corrects this error, to reflect the correct equation of ``10.22AV + 
441.4.''

H. Commercial Package Air Conditioners and Heat Pumps

    On May 20, 2024, DOE published a final rule in the Federal Register 
amending the current test procedures for air-cooled commercial unitary 
air conditioners with a rated cooling capacity greater than or equal to 
65,000 Btu/h, evaporatively-cooled commercial unitary air conditioners, 
and water-cooled commercial unitary air conditioners (referred to 
collectively as ``CUACs and CUHPs'') (89 FR 43986; ``May 2024 CUAC and 
CUHP TP Final Rule'').
    As part of the publication of the May 2024 CUAC and CUHP TP Final 
Rule, DOE updated Table 1 to paragraph (b) of 10 CFR 431.96, which 
lists the test procedure for all commercial air conditioners and heat 
pumps, and included a typographical error in one of the column headers. 
Specifically, the column heading in Table 1 to paragraph (b) 
erroneously stated, ``Use tests, conditions, an procedures in'' instead 
of ``Use tests, conditions and procedures in'' (see 89 FR 43986, 44037 
(May 20, 2024). This document identifies and corrects this error.

I. Distribution Transformers

    The applicable energy conservation standard requirements for 
distribution transformers are contained in DOE's regulations at 10 CFR 
part 431, subpart K and are applicable to products that meet the 
definition of ``distribution transformer'' as codified at 10 CFR 
431.192. 10 CFR 431.192 also includes definitions for several kinds of 
equipment explicitly excluded from the definition of ``distribution 
transformer.''
    On April 22, 2024, DOE published a final rule in the Federal 
Register adopting amended energy conservation standards for 
distribution transformers and adopting minor edits to the definitions 
relevant for distribution transformers, including clarifying edits to 
the definition of ``special-impedance transformer'' (89 FR 29834; 
``April 2024 Transformer Final Rule''). In the publication of the April 
2024 Transformer Final Rule, DOE updated 10 CFR 431.192 with a 
typographical error in the titles of Tables 1 and 2 relevant for the 
definition of ``special-impedance transformer.'' Specifically,

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the headings for Table 1 and Table 2 each state, ``to the Definition o 
`Special-Impedance Transformer.' '' This document identifies and 
corrects this error with text that reads, ``to the Definition of 
`Special-Impedance Transformer.' ''

J. Walk-In Coolers and Walk-In Freezers

    On May 4, 2023, DOE published a final rule in the Federal Register 
amending the test procedures for walk-in coolers and walk-in freezers 
(referred to as ``walk-ins'' or ``WICFs'') (88 FR 28780; ``May 2023 
WICF TP Final Rule''). As part of the May 2023 WICF TP Final Rule, DOE 
adopted a new test procedure at 10 CFR part 431, subpart R, appendix C1 
(``appendix C1'') and a new efficiency metric (i.e., annual walk-in 
energy factor 2 (``AWEF2'')), for walk-in refrigeration systems. 
Appendix C1 references the Air-Conditioning, Heating, and Refrigeration 
Institute (``AHRI'') industry test standard AHRI 1250-2020, ``2020 
Standard for Performance Rating of Walk-in Coolers and Freezers.''
    AWEF2 is the ratio of annual total heat removed from a walk-in box 
(i.e., the annual walk-in box load) to the annual total energy input. 
For all outdoor dedicated condensing refrigeration systems (i.e., 
outdoor matched pairs, single-package dedicated systems, and dedicated 
condensing units), annual walk-in box load and annual energy use are 
determined by summing the walk-in box load and energy use for 20 
different bins and corresponding bin temperatures multiplied by the 
number of hours in each bin (see, e.g., section 7.4.1 of AHRI 1250-
2020). Power values for each bin are interpolated or extrapolated based 
on the power measurements taken at three different outdoor ambient 
temperatures (95 [deg]F, 59 [deg]F, and 35 [deg]F). For outdoor 
dedicated condensing refrigeration systems, there are three off-cycle 
tests conducted at these same three outdoor ambient conditions (95 
[deg]F, 59 [deg]F, and 35 [deg]F), and, therefore, there are three 
separate measurements of off-cycle condensing unit power (see, e.g., 
Table 5 of AHRI 1250-2020).
    In the May 2023 WICF TP Final Rule, for outdoor dedicated 
condensing refrigeration systems, DOE deviated from the AHRI 1250-2020 
calculations for off-cycle energy use in AWEF2 because the equations 
for refrigeration system total power input by each bin temperature tj 
(e.g., equation 13 of AHRI 1250-2020) do not use off-cycle power values 
that vary by bin temperature. Because the condensing unit off-cycle 
power may vary as a function of outdoor temperature, DOE adopted 
instructions for calculating condensing unit off-cycle power as a 
function of outdoor temperature based on the measurements made at the 
three outdoor test condition temperatures. 88 FR 28780, 28812-28813 
(May 4, 2023). DOE adopted these provisions for all outdoor dedicated 
condensing systems, regardless of whether they are high-, medium-, or 
low-temperature dedicated condensing systems.
    Section 3.4.12.2 of appendix C1 specifies how to calculate AWEF2 
for high-temperature, outdoor matched pairs or single-packaged 
refrigeration systems. Section 3.4.12.2 erroneously specifies that the 
condensing unit off-cycle power, Ecu,off, is measured as described in 
section C3.5 of AHRI 1250-2020 and does not specify that condensing 
unit off-cycle power should be determined based on bin temperature tj 
per section 3.4.3.3 of appendix C1. This document identifies and 
corrects this error with text that specify that condensing unit off-
cycle power for high-temperature, outdoor matched pairs or single-
packaged refrigeration systems should be determined based on bin 
temperature tj per section 3.4.3.3 of appendix C1.

K. Circulator Pumps

    On May 20, 2024, DOE published a final rule in the Federal Register 
establishing energy conservation standards for circulator pumps (89 FR 
44464; ``May 2024 Circulator Pump Final Rule''). In the publication of 
the May 2024 Circulator Pump Final Rule, DOE updated the section 
heading of 10 CFR 431.465 which previously read ``Pumps energy 
conservation standards and their compliance dates'' to read 
``Circulator pumps energy conservation standards and their compliance 
dates.'' This amendment was in error, as this section of the CFR 
includes energy conservation standards for dedicated purpose pool pumps 
and commercial and industrial pumps in addition to circulator pumps. 
This document identifies and corrects this error by reverting to the 
previous section heading.

L. Commercial and Industrial Pumps

    The test procedure established for commercial and industrial pumps 
is located in DOE's regulations at 10 CFR part 431, subpart Y, appendix 
A, ``Uniform Test Method for the Measurement of Energy Consumption of 
Pumps'' (``appendix A''). Sections IV.D.2 and VI.D.2 of appendix A 
outline how to determine the best efficiency point (``BEP'') using the 
testing-based approach for pumps sold with motors. On March 24, 2023, 
DOE published a final rule in the Federal Register adopting an amended 
test procedure for commercial and industrial pumps (88 FR 17934; 
``March 2023 Pumps Final Rule'').
    DOE has identified errors in sections IV.D.2 and VI.D.2 of appendix 
A, as finalized in the March 2023 Pumps Final Rule, which erroneously 
reference ``pump efficiency,'' calculated using ``pump power input,'' 
in describing how to determine the BEP using the testing-based approach 
for pumps sold with motors; whereas, those sections should instead 
reference ``overall efficiency,'' calculated using ``driver power 
input,'' consistent with the wording as it appeared prior to the 
amendments of the March 2023 Pumps Final Rule. This document identifies 
and corrects these errors by reverting to the prior language.

II. Need for Correction

A. Automatic Commercial Ice Makers

    As published, the regulatory text in 10 CFR 429.45(a)(2)(ii) will 
likely cause confusion and may mislead interested parties regarding how 
to properly determine the UCL for ACIM certification purposes. The 
relevant changes to 10 CFR 429.45(a)(2)(ii) correct the inadvertent 
formula error. Accordingly, the changes addressed in this document are 
technical in nature.

B. Integrated Light-Emitting Diode Lamps

    As published, the regulatory text in 10 CFR 429.56(b)(2) will 
likely cause confusion and may mislead interested parties regarding the 
entities permitted to test integrated LED lamps and the units to be 
used in making certain representations. The relevant changes to 10 CFR 
429.56(b)(2) correct the units used and the testing laboratory 
requirements. Accordingly, the changes addressed in this document are 
technical in nature.

C. General Service Lamps

    As published, the erroneous section references in the regulatory 
text in sections (a) and (b) of 10 CFR 429.57 and the definition of 
``rated wattage'' in 10 CFR 430.2 will likely cause confusion and may 
mislead interested parties regarding how to properly test and certify 
GSFLs, IRLs, and GSILs. The relevant changes to sections (a) and (b) of 
10 CFR 429.57 and the definition of ``rated wattage'' in 10 CFR 430.2 
correct the reference errors. Accordingly, the changes addressed in 
this document are technical in nature.

D. Uninterruptible Power Supplies

    As published, the now-obsolete introductory text in appendix Y, the

[[Page 6788]]

erroneous section references in the regulatory text in 10 CFR 
429.134(o), and sections 0 and 4.3.4 of appendix Y will likely cause 
confusion and may mislead interested parties regarding test procedure 
applicability date, and regarding how to properly determine UPS 
architecture. The relevant changes to 10 CFR 429.134(o) and sections 0 
and 4.3.4 of appendix Y correct the reference errors related to UPS 
architecture testing. Accordingly, the changes addressed in this 
document are technical in nature.

E. Water Heaters

    As published, the regulatory text in sections 2.2.1, 6.3.6, and 
6.4.7 of appendix E, will likely cause confusion and may mislead 
interested parties regarding how to properly conduct testing under 
DOE's consumer water heaters and residential-duty commercial water 
heaters test procedure. The relevant changes to section 2.2.1 of 
appendix E, involving a tolerance to ambient temperature requirement 
for non-heat pump water heaters, was discussed in the June 2023 Water 
Heater Final Rule's preamble, but it was inadvertently omitted from the 
amended regulatory text. The relevant changes to section 6.3.2 and 
section 6.3.6 of appendix E, involving the proper nomenclature for mass 
of water removed and the proper calculation of daily energy 
consumption, respectively, fix inadvertent typographical errors. The 
changes to section 6.4.7 of appendix E correct the inadvertent deletion 
of an equation used to compute annual fossil fuel energy consumption. 
Additionally, the relevant changes to the amended standards at 10 CFR 
430.32(d)(1)-(2), involving the description of the compliance date and 
the storage volume metric, also resolve inadvertent typographical 
errors. Accordingly, the changes addressed in this document are 
technical in nature.

F. Portable Air Conditioners

    As published, the regulatory text in section 5.1 of appendix CC1 to 
subpart B of 10 CFR part 430 will likely result in confusion as to the 
meaning of these terms and the references to provisions elsewhere in 
the test procedure. The relevant changes to section 5.1 of appendix CC1 
correct the typographical errors introduced in the May 2023 Portable AC 
Final Rule. Accordingly, the changes addressed in this document are 
technical in nature.

G. Refrigerators, Refrigerator-Freezers, and Freezers

    As published, the regulatory text in 10 CFR 430.32(a)(1) will 
likely cause confusion and may mislead interested parties regarding 
applicability of the current energy conservation standards of 
refrigerators, refrigerator-freezers, and freezers. The relevant 
changes to 10 CFR 430.32(a)(1), correct the inadvertent typographical 
errors introduced in the January 2024 Refrigerator Direct Final Rule. 
Accordingly, the changes addressed in this document are editorial in 
nature.

H. Commercial Package Air Conditioners and Heat Pumps

    As published, the regulatory text in section 10 CFR 431.96 may 
cause confusion to interested parties regarding how to properly conduct 
testing under DOE's commercial air conditioner and heat pump test 
procedures. The relevant changes to 10 CFR 431.96 correct the 
typographical error introduced in the May 2024 CUAC and CUHP TP Final 
Rule. Accordingly, the changes addressed in this document are editorial 
in nature.

I. Distribution Transformers

    As published, the regulatory text in section 10 CFR 431.192 will 
likely cause confusion to interested parties regarding definitions 
relevant to the current energy conservation standards of distribution 
transformers. The relevant changes to 10 CFR 431.192 correct the 
typographical error introduced in the April 2024 Transformer Final 
Rule. Accordingly, the changes addressed in this document are editorial 
in nature.

J. Walk-In Coolers and Walk-In Freezers

    As published, the regulatory text in section 3.4.12.2 of 10 CFR 
part 431, subpart R, appendix C1 will likely cause confusion and may 
mislead interested parties regarding how to properly conduct testing of 
high-temperature, outdoor matched pairs or single-packaged dedicated 
condensing systems under DOE's walk-in refrigeration systems test 
procedure. The relevant changes to section 3.4.12.2 of appendix C1 
correct the inadvertent error introduced in the May 2023 WICF TP Final 
Rule. Accordingly, the changes addressed in this document are technical 
in nature.

K. Circulator Pumps

    As published, the title of 10 CFR 431.465 will likely cause 
confusion and may mislead interested parties regarding the current 
energy conservation standards of dedicated purpose pool pumps and 
commercial and industrial pumps. The relevant changes to 10 CFR 431.465 
correct the misleading section heading introduced in the May 2024 
Circulator Pump Final Rule. Accordingly, the changes addressed in this 
document are editorial in nature.

L. Commercial and Industrial Pumps

    As published, the regulatory text in sections IV.D.2 and VI.D.2 of 
appendix A to subpart Y of 10 CFR part 431 will likely cause confusion 
and may mislead interested parties regarding how to properly conduct 
testing under DOE's commercial and industrial pump test procedure. The 
relevant changes to 10 CFR part 431, subpart Y, appendix A correct the 
inadvertent error introduced in the March 2023 Pumps Final Rule. 
Accordingly, the changes addressed in this document are technical in 
nature.

III. Procedural Issues and Regulatory Review

    DOE has concluded that the determinations made pursuant to the 
various procedural requirements applicable to the final rules discussed 
elsewhere in this document related to ACIMs \1\; integrated LED lamps 
\2\; general service lamps \3\; UPSs \4\; water heaters \5\; portable 
ACs \6\; refrigerators, refrigerator-freezers, freezers \7\; CUACs and 
CUHPs \8\; distribution transformers \9\; WICFs \10\; circulator pumps 
\11\; and commercial and industrial pumps \12\ remain unchanged for 
this final rule correcting amendments.
---------------------------------------------------------------------------

    \1\ See 87 FR 65856, 65895-65898 (Nov. 1, 2022).
    \2\ See 81 FR 43404, 43420-43425 (July 1, 2016).
    \3\ See 87 FR 53618, 53633-53637 (August 31, 2022).
    \4\ See 87 FR 55090, 55117-55122 (Sept. 8, 2022); 89 FR 28581, 
28589-28592 (April 19, 2024).
    \5\ See 88 FR 40406, 40468-40471 (June 21, 2023); 89 FR 37778, 
37936-37941 (May 6, 2024).
    \6\ See 88 FR 31102, 31122-31125 (May 15, 2023).
    \7\ See 89 FR 3026, 3109-3112 (Jan. 17, 2024).
    \8\ See 89 FR 4986, 44028-44032 (May 20, 2024).
    \9\ See 89 FR 29834, 30032-30038 (April 22, 2024).
    \10\ See 88 FR 28780; 28827-28834 (May 4, 2023)
    \11\ See 89 FR 44464, 44532-44535 (May 20, 2024).
    \12\ See 88 FR 17934, 17968-17972 (March 24, 2023).
---------------------------------------------------------------------------

    Pursuant to the Administrative Procedure Act, 5 U.S.C. 553(b)(B), 
DOE finds that there is good cause to not issue a separate notification 
to solicit public comment on the changes contained in this document. 
Issuing a separate notification to solicit public comment would be 
impracticable, unnecessary, and contrary to the public interest. 
Neither the errors nor the corrections in this document affect the 
substance of the aforementioned final rules for the subject consumer 
products and commercial and industrial equipment or any of the 
conclusions reached in support of those documents. Additionally, given 
the energy conservation standards and test procedures that are being 
corrected are

[[Page 6789]]

a result of an extensive administrative record with numerous 
opportunities for public comment, DOE finds additional comment on the 
technical corrections is unnecessary. Therefore, providing prior 
notification and an opportunity for public comment on correcting 
objective, typographical errors that do not change the substance of the 
relevant energy conservation standards and test procedures serves no 
useful purpose.
    Further, this rule correcting typographical errors makes non-
substantive changes to the subject test procedure and energy 
conservation standards. As such, this rule is not subject to the 30-day 
delay in effective date requirement of 5 U.S.C. 553(d) otherwise 
applicable to rules that make substantive changes.
    The following standards appear in the amendatory text of this 
document and were previously approved for the locations in which they 
appear: ANSI C78.81, ANSI C78.901, AHAM PAC-1-2022, AHRI 1250-2020, and 
HI 40.6-2021.

IV. Approval of the Office of the Secretary

    The Secretary of Energy has approved publication of this final 
rule.

List of Subjects

10 CFR Part 429

    Administrative practice and procedure, Confidential business 
information, Energy conservation, Household appliances, Imports, 
Intergovernmental relations, Reporting and recordkeeping requirements, 
Small businesses.

10 CFR Part 430

    Administrative practice and procedure, Confidential business 
information, Energy conservation, Household appliances, Incorporation 
by reference, Imports, Intergovernmental relations, Reporting and 
recordkeeping requirements, Small businesses.

10 CFR Part 431

    Administrative practice and procedure, Confidential business 
information, Energy conservation, Incorporation by reference, Reporting 
and recordkeeping requirements.

Signing Authority

    This document of the Department of Energy was signed on January 10, 
2025, by Jeffrey Marootian, Principal Deputy Assistant Secretary for 
Energy Efficiency and Renewable Energy, pursuant to delegated authority 
from the Secretary of Energy. That document with the original signature 
and date is maintained by DOE. For administrative purposes only, and in 
compliance with requirements of the Office of the Federal Register, the 
undersigned DOE Federal Register Liaison Officer has been authorized to 
sign and submit the document in electronic format for publication, as 
an official document of the Department of Energy. This administrative 
process in no way alters the legal effect of this document upon 
publication in the Federal Register.

    Signed in Washington, DC, on January 13, 2025.
Treena V. Garrett,
Federal Register Liaison Officer, U.S. Department of Energy.
    For the reasons stated in the preamble, DOE corrects parts 429, 
430, and 431 of Chapter II of Title 10, Code of Federal Regulations, by 
making the following correcting amendments:

PART 429--CERTIFICATION, COMPLIANCE, AND ENFORCEMENT FOR CONSUMER 
PRODUCTS AND COMMERCIAL AND INDUSTRIAL EQUIPMENT

0
1. The authority citation for part 429 continues to read as follows:

    Authority:  42 U.S.C. 6291-6317; 28 U.S.C. 2461 note.


0
2. Amend Sec.  429.45 by revising paragraph (a)(2)(ii) to read as 
follows:


Sec.  429.45  Automatic commercial ice makers.

    (a) * * *
    (2) * * *
    (ii) The upper 95 percent confidence limit (UCL) of the true mean 
divided by 1.10, where:
[GRAPHIC] [TIFF OMITTED] TR21JA25.084


And x is the sample mean; s is the sample standard deviation; n is the 
number of samples; and t0.95 is the Student's t-Distribution Values for 
a 95 percent one-tailed confidence interval with n-1 degrees of freedom 
(from appendix A to this subpart).
* * * * *

0
3. Amend Sec.  429.56 by revising paragraph (b)(2) to read as follows:


Sec.  429.56  Integrated light-emitting diode lamps.

* * * * *
    (b) * * *
    (2) Values reported in certification reports are represented 
values. Pursuant to Sec.  429.12(b)(13), a certification report must 
include the following public product-specific information: The testing 
laboratory's ILAC accreditation body's identification number or other 
approved identification assigned by the ILAC accreditation body, the 
date of manufacture, initial lumen output in lumens (lm), input power 
in watts (W), lamp efficacy in lumens per watt (lm/W), CCT in kelvin 
(K), power factor, lifetime in hours (and whether value is estimated), 
and life in years (and whether value is estimated). For lamps with 
multiple modes of operation (such as variable CCT or CRI), the 
certification report must also list which mode was selected for testing 
and include detail such that another laboratory could operate the lamp 
in the same mode. Lifetime and life are estimated values until testing 
is complete. When reporting estimated values, the certification report 
must specifically describe the prediction method, which must be 
generally representative of the methods specified in appendix BB. 
Manufacturers are required to maintain records per Sec.  429.71 of the 
development of all estimated values and any associated initial test 
data.
* * * * *

0
4. Amend Sec.  429.57 by revising paragraphs (a) and (b) to read as 
follows:


Sec.  429.57  General service lamps.

    (a) Determination of represented value. Manufacturers must 
determine represented values, which includes certified ratings, for 
each basic model of general service lamp in accordance with following 
sampling provisions.
    (1) The requirements of Sec.  429.11 are applicable to general 
service lamps, and
    (2) For general service incandescent lamps, use Sec.  429.66(a);
    (3) For compact fluorescent lamps, use Sec.  429.35(a);
    (4) For integrated LED lamps, use Sec.  429.56(a);
    (5) For other incandescent lamps, use Sec.  429.66(a);
    (6) For other fluorescent lamps, use Sec.  429.35(a); and
    (7) For OLED lamps and non-integrated LED lamps, use Sec.  
429.56(a).
    (b) Certification reports. (1) The requirements of Sec.  429.12 are 
applicable to general service lamps;
    (2) Values reported in certification reports are represented 
values;
    (3) For general service incandescent lamps, use Sec.  429.66(b);
    (4) For compact fluorescent lamps, use Sec.  429.35(b);
    (5) For integrated LED lamps, use Sec.  429.56(b); and
    (6) For other incandescent lamps, for other fluorescent lamps, for 
OLED lamps and non-integrated LED lamps, pursuant to Sec.  
429.12(b)(13), a certification report must include the following public 
product-specific

[[Page 6790]]

information: The testing laboratory's ILAC accreditation body's 
identification number or other approved identification assigned by the 
ILAC accreditation body, initial lumen output, input power, lamp 
efficacy, and power factor. For non-integrated LED lamps, the 
certification report must also include the input voltage and current 
used for testing.
* * * * *

0
5. Amend Sec.  429.134 by revising paragraph (o)(1) to read as follows:


Sec.  429.134  Product-specific enforcement provisions.

* * * * *
    (o) * * *
    (1) To determine the uninterruptible power supply (UPS) 
architecture:
    (i) When testing according to appendix Y to subpart B of part 430, 
perform the UPS architecture tests specified in the definitions of VI, 
VFD, and VFI in sections 2.27.1 through 2.27.3 of appendix Y to subpart 
B of 10 CFR part 430.
    (ii) When testing according to appendix Y1 to subpart B of part 
430, perform the UPS architecture tests specified in the definitions of 
VI, VFD, and VFI in sections 2.28.1 through 2.28.3 of appendix Y1 to 
subpart B of 10 CFR part 430.
* * * * *

PART 430--ENERGY CONSERVATION PROGRAM FOR CONSUMER PRODUCTS

0
6. The authority citation for part 430 continues to read as follows:

    Authority:  42 U.S.C. 6291-6309; 28 U.S.C. 2461 note.


0
7. Amend Sec.  430.2 by revising the definition of ``Rated wattage'' to 
read as follows:


Sec.  430.2  Definitions.

* * * * *
    Rated wattage means:
    (1) With respect to fluorescent lamps and general service 
fluorescent lamps:
    (i) If the lamp is listed in ANSI C78.81 (incorporated by 
reference; see Sec.  430.3) or ANSI C78.901 (incorporated by reference; 
see Sec.  430.3), the rated wattage of a lamp determined by the lamp 
designation of Clause 11.1 of ANSI C78.81 or ANSI C78.901;
    (ii) If the lamp is a residential straight-shaped lamp, and not 
listed in ANSI C78.81 (incorporated by reference; see Sec.  430.3), the 
wattage of a lamp when operated on a reference ballast for which the 
lamp is designed; or
    (iii) If the lamp is neither listed in one of the ANSI standards 
referenced in paragraph (1)(i) of this definition, nor a residential 
straight-shaped lamp, a represented value of electrical power for a 
basic model, determined according to 10 CFR 429.27, and derived from 
the measured initial input power of a lamp tested according to appendix 
R to subpart B of this part.
    (2) With respect to general service incandescent lamps, a 
represented value of electrical power for a basic model, determined 
according to 10 CFR 429.66, and derived from the measured initial input 
power of a lamp tested according to appendix R to subpart B of this 
part.
    (3) With respect to incandescent reflector lamps, a represented 
value of electrical power for a basic model, determined according to 10 
CFR 429.55, and derived from the measured initial input power of a lamp 
tested according to appendix R to subpart B of this part.
* * * * *

0
8. Amend appendix E to subpart B of part 430 by revising sections 
2.2.1, 6.3.2, 6.3.6, and 6.4.7 to read as follows:

Appendix E to Subpart B of Part 430--Uniform Test Method for Measuring 
the Energy Consumption of Water Heaters

* * * * *
    2.
* * *
    2.2 * * *
    2.2.1 Non-Heat Pump Water Heaters. The ambient air temperature 
shall be maintained at an average of 67.5 [deg]F  2.5 
[deg]F (19.7 [deg]C  1.4 [deg]C) on a continuous basis 
throughout the test, with a maximum deviation of 67.5 [deg]F  5 [deg]F (19.7 [deg]C  2.8 [deg]C).
* * * * *
    6. * * *
    6.3 * * *
    6.3.2 Mass of Water Removed. Determine the mass of water removed 
during each draw of the 24-hour simulated-use test 
(Mdel,i) as:
    If the mass of water removed is measured, use the measured 
value, or, if the volume of water removed is being measured,

Mdel,i = Vdel,i x rdel,i
* * * * *
    6.3.6 Adjusted Daily Water Heating Energy Consumption. The 
adjusted daily water heating energy consumption, Qda, 
takes into account that the ambient temperature may differ from the 
nominal value of 67.5 [deg]F (19.7 [deg]C) due to the allowable 
variation in surrounding ambient temperature of 65 [deg]F (18.3 
[deg]C) to 70 [deg]C (21.1 [deg]C). The adjusted daily water heating 
energy consumption is computed as:

Qda = Qd-(67.5 [deg]F-Ta,stby,2) UA tstby,2

or,

Qda = Qd-(19.7 [deg]C-Ta,stby,2) UA tstby,2

Where:

Qda = the adjusted daily water heating energy 
consumption, Btu (kJ).
Qd = as defined in section 6.3.4 of this appendix.
Ta,stby,2 = the average ambient temperature during the 
total standby portion, tstby,2, of the 24-hour simulated-
use test, [deg]F ([deg]C).
UA = as defined in section 6.3.4 of this appendix.
Tstby,2 = the number of hours during the 24-hour 
simulated-use test when water is not being withdrawn from the water 
heater.

    A modification is also needed to take into account that the 
temperature difference between the outlet water temperature and 
supply water temperature may not be equivalent to the nominal value 
of 67 [deg]F (125 [deg]F-58 [deg]F) or 37.3 [deg]C (51.7 [deg]C-14.4 
[deg]C). The following equations adjust the experimental data to a 
nominal 67 [deg]F (37.3 [deg]C) temperature rise.
    The energy used to heat water, Btu/day (kJ/day), may be computed 
as:
[GRAPHIC] [TIFF OMITTED] TR21JA25.085

Where:

N = total number of draws in the 24-hour simulated-use test.
Mdel,i = the mass of water removed during the ith draw (i 
= 1 to N) as calculated in section 6.3.2 of this appendix, lb (kg).
Cpi = the specific heat of the water withdrawn during the 
ith draw of the 24-hour simulated-use test, evaluated at 
(Tdel,i + Tin,i)/2, Btu/(lb[middot][deg]F) 
(kJ/(kg[middot][deg]C)).
Tdel,i = the average water outlet temperature measured 
during the ith draw (i = 1 to N), [deg]F ([deg]C).
Tin,i = the average water inlet temperature measured 
during the ith draw (i = 1 to N), [deg]F ([deg]C).
hr = as defined in section 6.3.3 of this appendix.

    The energy required to heat the same quantity of water over a 67 
[deg]F (37.3 [deg]C) temperature rise, Btu/day (kJ/day), is:
[GRAPHIC] [TIFF OMITTED] TR21JA25.086

or,
[GRAPHIC] [TIFF OMITTED] TR21JA25.087


[[Page 6791]]


    The difference between these two values is:

QHWD = QHW,67[deg]F-QHW

or,

QHWD = QHW,37.3[deg]C-QHW

    This difference (QHWD) must be added to the adjusted 
daily water heating energy consumption value. Thus, the daily energy 
consumption value, which takes into account that the ambient 
temperature may not be 67.5 [deg]F (19.7 [deg]C) and that the 
temperature rise across the storage tank may not be 67 [deg]F (37.3 
[deg]C) is:

Qdm = Qda + QHWD
* * * * *
    6.4 * * *
    6.4.7 Annual Fossil Fuel Energy Consumption. The annual fossil 
fuel energy consumption for water heaters with rated storage volumes 
less than 2 gallons, Eannual,f, is computed as:

Eannual,f = Eannual-(Eannual,e x 3412)

Where:

Eannual = the annual energy consumption as defined in section 6.4.5 
of this appendix, Btu (kJ).
Eannual,e = the annual electrical energy consumption as defined in 
section 6.4.6 of this appendix, kWh.
3412 = conversion factor from kWh to Btu.
* * * * *

0
9. Amend appendix Y to subpart B of part 430 by revising Note 1 and 
table and sections 0.1(d), 0.1(p), 0.1(q), 0.1(r), and 4.3.4 to read as 
follows:

Appendix Y to Subpart B of Part 430--Uniform Test Method for Measuring 
the Energy Consumption of Battery Chargers

    Note 1: For all Battery Chargers, including UPSs, compliance 
with the relevant standard in Sec.  430.32(z) or any representation 
must be based upon results generated under the corresponding 
appendix listed in the following table:


------------------------------------------------------------------------
                                   Battery chargers
                                    other than UPSs           UPS
------------------------------------------------------------------------
On or After July 3, 2024 and      Use appendix Y as   Use appendix Y as
 Before October 16, 2024.          it appeared on      it appeared on
                                   either March 7,     either March 7,
                                   2023, or July 3,    2023, or July 3,
                                   2024.               2024.
On or After October 16, 2024 and  Use appendix Y as   Use appendix Y as
 Before compliance date of any     it appeared on      it appeared on
 new or amended standards          July 3, 2024..      July 3, 2024.
 published any time after
 September 2022.
On or After compliance date of    Use appendix Y1...  Use appendix Y1.
 any new or amended standards
 published any time after
 September 2022.
------------------------------------------------------------------------

    0. * * *
    0.1 * * *
    (d) Section 5.2, UPS input specification, as specified in 
section 2.27.2 of this appendix;
* * * * *
    (p) Section 6.2.2.7, AC input failure, as specified in Note to 
section 2.27.1 of this appendix;
    (q) Section 6.4, Type test procedure (electrical); Section 
6.4.1, Input--AC input power compatibility; Section 6.4.1.2, Steady 
state input voltage tolerance and VI input independency, as 
specified in Note to section 2.27.3 of this appendix;
    (r) Section 6.4.1.3, Combined input voltage/frequency tolerance 
and VFI input independency, as specified in Note to section 2.27.2 
of this appendix;
* * * * *
    4. * * *
    4.3. * * *
    4.3.4 UUT Classification
    Optional Test for determination of UPS architecture. Determine 
the UPS architecture by performing the tests specified in the 
definitions of VI, VFD, and VFI (sections 2.27.1 through 2.27.3 of 
this appendix).
* * * * *

0
10. Amend appendix CC1 to subpart B of part 430 by revising section 5.1 
to read as follows:

Appendix CC1 to Subpart B of Part 430--Uniform Test Method for 
Measuring the Energy Consumption of Portable Air Conditioners

* * * * *
    5. * * *
    5.1 Adjusted Cooling Capacity. Calculate the adjusted cooling 
capacities at the 95 [deg]F and 83 [deg]F operating conditions 
specified below of the sample unit, in Btu/h, according to the 
following equations.
    For a single-duct single-speed unit:

ACC95 = CapacitySD - Qduct\SD - Qinfiltration\95

ACC83 = 0.6000 x (CapacitySD - Qduct\SD - Qinfiltration\83)

    For a single-duct variable-speed unit:

ACC95 = CapacitySD\Full - Qduct\SD\Full - Qinfiltration\95

ACC83 = CapacitySD\Low - Qduct\SD\Low - Qinfiltration\83\Low

    For a dual-duct single-speed unit:

ACC95 = CapacityDD\95\Full - Qduct\DD\95\Full - Qinfiltration\95

ACC83 = 0.5363 x (CapacityDD\83 - Qduct\DD\83 - Qinfiltration\83)

    For a dual-duct variable-speed unit:

ACC95 = CapacityDD\95\Full - Qduct\DD\95\Full - Qinfiltration\95

ACC83 = CapacityDD\Low - Qduct\DD\83\Low - Qinfiltration\83\Low

Where:

ACC95 and ACC 83 = adjusted cooling capacity 
of the sample unit, in Btu/h, calculated from testing at:
For a single-duct single-speed unit, test configuration 2A in Table 
2 of AHAM PAC-1-2022.
For a single-duct variable-speed unit, test configurations 2B and 2C 
in Table 2 of AHAM PAC-1-2022.
For a dual-duct single-speed unit, test configurations 1A and 1B in 
Table 2 of AHAM PAC-1-2022.
For a dual-duct variable-speed unit: test configurations 1C and 1E 
in Table 2 of AHAM PAC-1-2022.
CapacitySD, CapacitySD_Full, 
CapacitySD_Low, CapacityDD_95, 
CapacityDD_83, CapacityDD_95_Full, and 
CapacityDD_83_Low = cooling capacity, in Btu/h, measured 
in testing at test configuration 2A, 2B, 2C, 1A, 1B, 1C, and 1E of 
Table 2 in section 8.1 of AHAM PAC-1-2022, respectively.
Qduct_SD, Qduct_SD_Full, 
Qduct_SD_Low, Qduct_DD_95, 
Qduct_DD_83, Qduct_DD_95_Full, and 
Qduct_DD_83_Low = duct heat transfer while operating in 
cooling mode for each duct configuration, compressor speed (where 
applicable) and temperature condition (where applicable), calculated 
in section 9.1 of AHAM PAC-1-2022, in Btu/h.
Qinfiltration_95, Qinfiltration_83, and 
Qinfiltration_83_Low = total infiltration air heat 
transfer in cooling mode, in Btu/h, for each of the following 
compressor speed and duct configuration combinations:
For a single-duct single-speed unit, use Qinfiltration_95 
and Qinfiltration_83 as calculated for a single-duct 
single-speed unit in section 9.2 of AHAM PAC-1-2022.
For a single-duct variable-speed unit, use 
Qinfiltration_95 and Qinfiltration_83_Low as 
calculated for a single-duct variable-speed unit in section 9.2 of 
AHAM PAC-1-2022.
For a dual-duct single-speed unit, use Qinfiltration_95 
and Qinfiltration_83 as calculated for a dual-duct 
single-speed unit in section 9.2 of AHAM PAC-1-2022.
For a dual-duct variable-speed unit, use Qinfiltration_95 
and Qinfiltration_83_Low as calculated for a dual-duct 
variable-speed unit in section 9.2 of AHAM PAC-1-2022.
0.6000 and 0.5363 = empirically-derived load-based capacity 
adjustment factor for a single-duct and dual-duct single-speed unit, 
respectively, when operating at test conditions 2A and 1B.
* * * * *

0
11. Amend Sec.  430.32 by revising paragraph (a)(1), the introductory 
text to (d)(1), and paragraph (d)(2) to read as follows:


Sec.  430.32  Energy and water conservation standards and their 
compliance dates.

* * * * *
    (a) * * *

[[Page 6792]]

    (1) The following standards apply to products manufactured on or 
after September 15, 2014, and before the 2029/2030 compliance dates 
depending on product class (see paragraphs (a)(2) and (a)(3) of this 
section).

                                           Table 1 to Paragraph (a)(1)
----------------------------------------------------------------------------------------------------------------
                                                                               Equations for maximum energy use
                                                                                           (kWh/yr)
                                Product class                                -----------------------------------
                                                                                 based on AV
                                                                                   (ft\3\)      based on av  (L)
----------------------------------------------------------------------------------------------------------------
1. Refrigerators and refrigerator-freezers with manual defrost..............    7.99AV + 225.0   0.282av + 225.0
1A. All-refrigerators--manual defrost.......................................    6.79AV + 193.6   0.240av + 193.6
2. Refrigerator-freezers--partial automatic defrost.........................    7.99AV + 225.0   0.282av + 225.0
3. Refrigerator-freezers--automatic defrost with top-mounted freezer without    8.07AV + 233.7   0.285av + 233.7
 an automatic icemaker......................................................
3-BI. Built-in refrigerator-freezer--automatic defrost with top-mounted         9.15AV + 264.9   0.323av + 264.9
 freezer without an automatic icemaker......................................
3I. Refrigerator-freezers--automatic defrost with top-mounted freezer with      8.07AV + 317.7   0.285av + 317.7
 an automatic icemaker without through-the-door ice service.................
3I-BI. Built-in refrigerator-freezers--automatic defrost with top-mounted       9.15AV + 348.9   0.323av + 348.9
 freezer with an automatic icemaker without through-the-door ice service....
3A. All-refrigerators--automatic defrost....................................    7.07AV + 201.6   0.250av + 201.6
3A-BI. Built-in All-refrigerators--automatic defrost........................    8.02AV + 228.5   0.283av + 228.5
4. Refrigerator-freezers--automatic defrost with side-mounted freezer           8.51AV + 297.8   0.301av + 297.8
 without an automatic icemaker..............................................
4-BI. Built-In Refrigerator-freezers--automatic defrost with side-mounted      10.22AV + 357.4   0.361av + 357.4
 freezer without an automatic icemaker......................................
4I. Refrigerator-freezers--automatic defrost with side-mounted freezer with     8.51AV + 381.8   0.301av + 381.8
 an automatic icemaker without through-the-door ice service.................
4I-BI. Built-In Refrigerator-freezers--automatic defrost with side-mounted     10.22AV + 441.4   0.361av + 441.4
 freezer with an automatic icemaker without through-the-door ice service....
5. Refrigerator-freezers--automatic defrost with bottom-mounted freezer         8.85AV + 317.0   0.312av + 317.0
 without an automatic icemaker..............................................
5-BI. Built-In Refrigerator-freezers--automatic defrost with bottom-mounted     9.40AV + 336.9   0.332av + 336.9
 freezer without an automatic icemaker......................................
5I. Refrigerator-freezers--automatic defrost with bottom-mounted freezer        8.85AV + 401.0   0.312av + 401.0
 with an automatic icemaker without through-the-door ice service............
5I-BI. Built-In Refrigerator-freezers--automatic defrost with bottom-mounted    9.40AV + 420.9   0.332av + 420.9
 freezer with an automatic icemaker without through-the-door ice service....
5A. Refrigerator-freezer--automatic defrost with bottom-mounted freezer with    9.25AV + 475.4   0.327av + 475.4
 through-the-door ice service...............................................
5A-BI. Built-in refrigerator-freezer--automatic defrost with bottom-mounted     9.83AV + 499.9   0.347av + 499.9
 freezer with through-the-door ice service..................................
6. Refrigerator-freezers--automatic defrost with top-mounted freezer with       8.40AV + 385.4   0.297av + 385.4
 through-the-door ice service...............................................
7. Refrigerator-freezers--automatic defrost with side-mounted freezer with      8.54AV + 432.8   0.302av + 431.1
 through-the-door ice service...............................................
7-BI. Built-In Refrigerator-freezers--automatic defrost with side-mounted      10.25AV + 502.6   0.362av + 502.6
 freezer with through-the-door ice service..................................
8. Upright freezers with manual defrost.....................................    5.57AV + 193.7   0.197av + 193.7
9. Upright freezers with automatic defrost without an automatic icemaker....    8.62AV + 228.3   0.305av + 228.3
9I. Upright freezers with automatic defrost with an automatic icemaker......    8.62AV + 312.3   0.305av + 312.3
9-BI. Built-In Upright freezers with automatic defrost without an automatic     9.86AV + 260.9   0.348av + 260.6
 icemaker...................................................................
9I-BI. Built-In Upright freezers with automatic defrost with an automatic       9.86AV + 344.9   0.348av + 344.9
 icemaker...................................................................
10. Chest freezers and all other freezers except compact freezers...........    7.29AV + 107.8   0.257av + 107.8
10A. Chest freezers with automatic defrost..................................   10.24AV + 148.1   0.362av + 148.1
11. Compact refrigerators and refrigerator-freezers with manual defrost.....    9.03AV + 252.3   0.319av + 252.3
11A. Compact refrigerators and refrigerator-freezers with manual defrost....    7.84AV + 219.1   0.277av + 219.1
12. Compact refrigerator-freezers--partial automatic defrost................    5.91AV + 335.8   0.209av + 335.8
13. Compact refrigerator-freezers--automatic defrost with top-mounted          11.80AV + 339.2   0.417av + 339.2
 freezer....................................................................
13I. Compact refrigerator-freezers--automatic defrost with top-mounted         11.80AV + 423.2   0.417av + 423.2
 freezer with an automatic icemaker.........................................
13A. Compact all-refrigerator--automatic defrost............................    9.17AV + 259.3   0.324av + 259.3
14. Compact refrigerator-freezers--automatic defrost with side-mounted          6.82AV + 456.9   0.241av + 456.9
 freezer....................................................................
14I. Compact refrigerator-freezers--automatic defrost with side-mounted         6.82AV + 540.9   0.241av + 540.9
 freezer with an automatic icemaker.........................................
15. Compact refrigerator-freezers--automatic defrost with bottom-mounted       11.80AV + 339.2   0.417av + 339.2
 freezer....................................................................
15I. Compact refrigerator-freezers--automatic defrost with bottom-mounted      11.80AV + 423.2   0.417av + 423.2
 freezer with an automatic icemaker.........................................
16. Compact upright freezers with manual defrost............................    8.65AV + 225.7   0.306av + 225.7
17. Compact upright freezers with automatic defrost.........................   10.17AV + 351.9   0.359av + 351.9
18. Compact chest freezers..................................................    9.25AV + 136.8   0.327av + 136.8
----------------------------------------------------------------------------------------------------------------
AV = Total adjusted volume, expressed in ft\3\, as determined in appendices A and B to subpart B of this part.
av = Total adjusted volume, expressed in Liters.

* * * * *
    (d) * * *
    (1) The uniform energy factor of water heaters manufactured before 
May 6, 2029, shall not be less than the following:
* * * * *
    (2) The uniform energy factor of water heaters manufactured on or 
after May 6, 2029, shall not be less than the following:

[[Page 6793]]



                                          Table 14 to Paragraph (d)(2)
----------------------------------------------------------------------------------------------------------------
                                    Effective storage volume
          Product class               and input rating (if        Draw pattern         Uniform energy factor *
                                          applicable)
----------------------------------------------------------------------------------------------------------------
Gas-fired Storage Water Heater...  <20 gal..................  Very Small..........        0.2062-(0.0020 x Veff)
                                                              Low.................        0.4893-(0.0027 x Veff)
                                                              Medium..............        0.5758-(0.0023 x Veff)
                                                              High................        0.6586-(0.0020 x Veff)
                                   >=20 gal and <=55 gal....  Very Small..........        0.3925-(0.0020 x Veff)
                                                              Low.................        0.6451-(0.0019 x Veff)
                                                              Medium..............        0.7046-(0.0017 x Veff)
                                                              High................        0.7424-(0.0013 x Veff)
                                   >55 gal and <=100 gal....  Very Small..........        0.6470-(0.0006 x Veff)
                                                              Low.................        0.7689-(0.0005 x Veff)
                                                              Medium..............        0.7897-(0.0004 x Veff)
                                                              High................        0.8072-(0.0003 x Veff)
                                   >100 gal.................  Very Small..........        0.1482-(0.0007 x Veff)
                                                              Low.................        0.4342-(0.0017 x Veff)
                                                              Medium..............        0.5596-(0.0020 x Veff)
                                                              High................        0.6658-(0.0019 x Veff)
Oil-fired Storage Water Heater...  <=50 gal.................  Very Small..........        0.2909-(0.0012 x Veff)
                                                              Low.................        0.5730-(0.0016 x Veff)
                                                              Medium..............        0.6478-(0.0016 x Veff)
                                                              High................        0.7215-(0.0014 x Veff)
                                   >50 gal..................  Very Small..........        0.1580-(0.0009 x Veff)
                                                              Low.................        0.4390-(0.0020 x Veff)
                                                              Medium..............        0.5389-(0.0021 x Veff)
                                                              High................        0.6172-(0.0018 x Veff)
Very Small Electric Storage Water  <20 gal..................  Very Small..........        0.5925-(0.0059 x Veff)
 Heater.
                                                              Low.................        0.8642-(0.0030 x Veff)
                                                              Medium..............        0.9096-(0.0020 x Veff)
                                                              High................        0.9430-(0.0012 x Veff)
Small Electric Storage Water       >=20 gal and <=35 gal....  Very Small..........        0.8808-(0.0008 x Veff)
 Heater.
                                                              Low.................        0.9254-(0.0003 x Veff)
Electric Storage Water Heaters...  >=20 and <=55 gal          Very Small..........                          2.30
                                    (excluding small
                                    electric storage water
                                    heaters).
                                                              Low.................                          2.30
                                                              Medium..............                          2.30
                                                              High................                          2.30
                                   >55 gal and <=120 gal....  Very Small..........                          2.50
                                                              Low.................                          2.50
                                                              Medium..............                          2.50
                                                              High................                          2.50
                                   >120 gal.................  Very Small..........        0.3574-(0.0012 x Veff)
                                                              Low.................        0.7897-(0.0019 x Veff)
                                                              Medium..............        0.8884-(0.0017 x Veff)
                                                              High................        0.9575-(0.0013 x Veff)
Tabletop Water Heater............  <20 gal..................  Very Small..........        0.5925-(0.0059 x Veff)
                                                              Low.................        0.8642-(0.0030 x Veff)
                                   >=20 gal.................  Very Small..........        0.6323-(0.0058 x Veff)
                                                              Low.................        0.9188-(0.0031 x Veff)
Instantaneous Oil-fired Water      <2 gal and <=210,000 Btu/  Very Small..........                          0.61
 Heater.                            h.
                                                              Low.................                          0.61
                                                              Medium..............                          0.61
                                                              High................                          0.61
                                   >=2 gal and <=210,000 Btu/ Very Small..........        0.2780-(0.0022 x Veff)
                                    h.
                                                              Low.................        0.5151-(0.0023 x Veff)
                                                              Medium..............        0.5687-(0.0021 x Veff)
                                                              High................        0.6147-(0.0017 x Veff)
Instantaneous Electric Water       <2 gal...................  Very Small..........                          0.91
 Heater.
                                                              Low.................                          0.91
                                                              Medium..............                          0.91
                                                              High................                          0.92
                                   >=2 gal..................  Very Small..........        0.8086-(0.0050 x Veff)
                                                              Low.................        0.9123-(0.0020 x Veff)
                                                              Medium..............        0.9252-(0.0015 x Veff)
                                                              High................        0.9350-(0.0011 x Veff)
Grid-Enabled Water Heater........  >75 gal..................  Very Small..........        1.0136-(0.0028 x Veff)
                                                              Low.................        0.9984-(0.0014 x Veff)
                                                              Medium..............        0.9853-(0.0010 x Veff)
                                                              High................        0.9720-(0.0007 x Veff)
----------------------------------------------------------------------------------------------------------------
* Veff is the Effective Storage Volume (in gallons), as determined pursuant to Sec.   429.17 of this chapter.


[[Page 6794]]

* * * * *

PART 431--ENERGY EFFICIENCY PROGRAM FOR CERTAIN COMMERCIAL AND 
INDUSTRIAL EQUIPMENT

0
12. The authority citation for part 431 continues to read as follows:

    Authority:  42 U.S.C. 6291-6317; 28 U.S.C. 2461 note.


0
13. Amend Sec.  431.96 by revising table 1 to paragraph (b) to read as 
follows:


Sec.  431.96  Uniform test method for the measurement of energy 
efficiency of commercial air conditioners and heat pumps.

* * * * *
    (b) * * *
    (2) * * *

                                Table 1 to Paragraph (b)--Test Procedures for Commercial Air Conditioners and Heat Pumps
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                      Additional test
                                                               Cooling capacity or                                Use tests,        procedure provisions
             Equipment                      Category            moisture removal       Energy efficiency       conditions, and      as indicated in the
                                                                  capacity \1\             descriptor           procedures in       listed paragraphs of
                                                                                                                                        this section
--------------------------------------------------------------------------------------------------------------------------------------------------------
Commercial Package Air Conditioning  Air-Cooled, 3-Phase,    <65,000 Btu/h.........  SEER and HSPF........  Appendix F to this     None.
 and Heating Equipment.               AC and HP.                                                             subpart \2\.
Commercial Package Air Conditioning  Air-Cooled, 3-Phase,    <65,000 Btu/h.........  SEER2 and HSPF2......  Appendix F1 to this    None.
 and Heating Equipment.               AC and HP.                                                             subpart \2\.
Commercial Package Air Conditioning  Air-Cooled AC and HP    >=65,000 Btu/h and      EER, IEER, and COP...  Appendix A to this     None.
 and Heating Equipment.               (excluding double-      <760,000 Btu/h.                                subpart \2\.
                                      duct AC and HP).
Commercial Package Air Conditioning  Air-Cooled AC and HP    >=65,000 Btu/h and      EER2, COP2, IVEC, and  Appendix A1 to this    None.
 and Heating Equipment.               (excluding double-      <760,000 Btu/h.         IVHE.                  subpart \2\.
                                      duct AC and HP).
Commercial Package Air Conditioning  Double-duct AC and HP.  >=65,000 Btu/h and      EER, IEER, and COP...  Appendix A to this     None.
 and Heating Equipment.                                       <300,000 Btu/h.                                subpart \2\.
Commercial Package Air Conditioning  Double-duct AC and HP.  >=65,000 Btu/h and      EER2, COP2, IVEC, and  Appendix A1 to this    None.
 and Heating Equipment.                                       <300,000 Btu/h.         IVHE.                  subpart \2\.
Commercial Package Air Conditioning  Water-Cooled and        <760,000 Btu/h........  EER and IEER.........  Appendix A to this     None.
 and Heating Equipment.               Evaporatively-Cooled                                                   subpart \2\.
                                      AC.
Commercial Package Air Conditioning  Water-Cooled and        <760,000 Btu/h........  EER2 and IVEC........  Appendix A1 to this    None.
 and Heating Equipment.               Evaporatively-Cooled                                                   subpart \2\.
                                      AC.
Water-Source Heat Pumps............  HP....................  <760,000 Btu/h........  EER and COP..........  Appendix C to this     None.
                                                                                                             subpart \2\.
Water-Source Heat Pumps............  HP....................  <760,000 Btu/h........  IEER and ACOP........  Appendix C1 to this    None.
                                                                                                             subpart \2\.
Packaged Terminal Air Conditioners   AC and HP.............  <760,000 Btu/h........  EER and COP..........  Paragraph (g) of this  Paragraphs (c), (e),
 and Heat Pumps.                                                                                             section.               and (g).
Computer Room Air Conditioners.....  AC....................  <760,000 Btu/h........  SCOP.................  Appendix E to this     None.
                                                                                                             subpart \2\.
Computer Room Air Conditioners.....  AC....................  <760,000 Btu/h or       NSenCOP..............  Appendix E1 to this    None.
                                                              <930,000 Btu/h \3\.                            subpart \2\.
Variable Refrigerant Flow Multi-     AC....................  <65,000 Btu/h (3-       SEER.................  Appendix F to this     None.
 split Systems.                                               phase).                                        subpart \2\.
Variable Refrigerant Flow Multi-     AC....................  <65,000 Btu/h (3-       SEER2................  Appendix F1 to this    None.
 split Systems.                                               phase).                                        subpart \2\.
Variable Refrigerant Flow Multi-     HP....................  <65,000 Btu/h (3-       SEER and HSPF........  Appendix F to this     None.
 split Systems, Air-cooled.                                   phase).                                        subpart \2\.
Variable Refrigerant Flow Multi-     HP....................  <65,000 Btu/h (3-       SEER2 and HSPF2......  Appendix F1 to this    None.
 split Systems, Air-cooled.                                   phase).                                        subpart \2\.
Variable Refrigerant Flow Multi-     AC and HP.............  >=65,000 Btu/h and      EER and COP..........  Appendix D to this     None.
 split Systems, Air-cooled.                                   <760,000 Btu/h.                                subpart \2\.
Variable Refrigerant Flow Multi-     AC and HP.............  >=65,000 Btu/h and      IEER and COP.........  Appendix D1 to this    None.
 split Systems, Air-cooled.                                   <760,000 Btu/h.                                subpart \2\.
Variable Refrigerant Flow Multi-     HP....................  <760,000 Btu/h........  EER and COP..........  Appendix D to this     None.
 split Systems, Water-source.                                                                                subpart \2\.

[[Page 6795]]

 
Variable Refrigerant Flow Multi-     HP....................  <760,000 Btu/h........  IEER and COP.........  Appendix D1 to this    None.
 split Systems, Water-source.                                                                                subpart \2\.
Single Package Vertical Air          AC and HP.............  <760,000 Btu/h........  EER and COP..........  Appendix G to this     None.
 Conditioners and Single Package                                                                             subpart \2\.
 Vertical Heat Pumps.
Single Package Vertical Air          AC and HP.............  <760,000 Btu/h........  EER, IEER, and COP...  Appendix G1 to this    None.
 Conditioners and Single Package                                                                             subpart \2\.
 Vertical Heat Pumps.
Direct Expansion-Dedicated Outdoor   All...................  <324 lbs. of moisture   ISMRE2 and ISCOP2....  Appendix B to this     None.
 Air Systems.                                                 removal/hr.                                    subpart.
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ Moisture removal capacity applies only to direct expansion-dedicated outdoor air systems.
\2\ For equipment with multiple appendices listed in this table, consult the notes at the beginning of those appendices to determine the applicable
  appendix to use for testing.
\3\ For upflow ducted and downflow floor-mounted computer room air conditioners, the test procedure in appendix E1 to this subpart applies to equipment
  with net sensible cooling capacity less than 930,000 Btu/h. For all other configurations of computer room air conditioners, the test procedure in
  appendix E1 to this subpart applies to equipment with net sensible cooling capacity less than 760,000 Btu/h.

* * * * *

0
14. Amend Sec.  431.192 by revising the headings to Table 1 and Table 2 
to read as follows:


Sec.  431.192  Definitions.

* * * * *

Table 1 to the Definition of ``Special-Impedance Transformer''--Normal 
Impedance Ranges for Liquid-Immersed Transformers

* * * * *

Table 2 to the Definition of ``Special-Impedance Transformer''--Normal 
Impedance Ranges for Dry-Type Transformers

* * * * *

0
15. Amend appendix C1 to subpart R of part 431 by revising section 
3.4.12.2 to read as follows:

Appendix C1 to Subpart R of Part 431--Uniform Test Method for the 
Measurement of Net Capacity and AWEF2 of Walk-In Cooler and Walk-In 
Freezer Refrigeration Systems

* * * * *
    3. * * *
    3.4 * * *
    3.4.12 * * *
    3.4.12.2 Calculate the AWEF2 as follows:
    [GRAPHIC] [TIFF OMITTED] TR21JA25.088
    
Where:

Ess(tj, in W, is the system power input for temperature 
tj, calculated as described in section 7.4.2 of AHRI 
1250-2020;
Ecu,off(tj, in W, is the condensing unit off-cycle power consumption 
for temperature tj, determined as indicated in section 
3.4.3.3 of this appendix; and
nj are the hours for temperature bin j.
* * * * *

0
16. Amend Sec.  431.465 by revising the section heading to read as 
follows:


Sec.  431.465  Pumps energy conservation standards and their compliance 
dates.

* * * * *

0
17. Amend appendix A to subpart Y of part 431 by revising sections 
IV.D.2 and VI.D.2. to read as follows:

Appendix A to Subpart Y of Part 431--Uniform Test Method for the 
Measurement of Energy Consumption of Pumps

* * * * *
    IV. * * *
    IV.D * * *
    IV.D.2 Determine the BEP flow rate as the flow rate at the 
operating point of maximum overall efficiency on the pump efficiency 
curve, as determined in accordance with section 40.6.6.3 of HI 40.6-
2021, where the overall efficiency is the ratio of the pump power 
output divided by the driver power input, as specified in Table 
40.6.2 of HI 40.6-2021, disregarding the calculations provided in 
section 40.6.6.2 of HI 40.6-2021.
* * * * *
    VI. * * *
    VI.D * * *
    VI.D.2 Determine the BEP flow rate as the flow rate at the 
operating point of maximum overall efficiency on the pump efficiency 
curve, as determined in accordance with section 40.6.6.3 of HI 40.6-
2021, where the overall efficiency is the ratio of the pump power 
output divided by the driver power input, as specified in Table 
40.6.2 of HI 40.6-2021, disregarding the calculations provided in 
section 40.6.6.2 of HI 40.6-2021.
* * * * *
[FR Doc. 2025-00987 Filed 1-17-25; 8:45 am]
BILLING CODE 6450-01-P`