[Federal Register Volume 84, Number 78 (Tuesday, April 23, 2019)]
[Proposed Rules]
[Pages 17004-17028]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-06868]



[[Page 17003]]

Vol. 84

Tuesday,

No. 78

April 23, 2019

Part III





Department of Energy





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10 CFR Part 431





 Energy Conservation Program: Test Procedures for Small Electric Motors 
and Electric Motors; Proposed Rule

  Federal Register / Vol. 84 , No. 78 / Tuesday, April 23, 2019 / 
Proposed Rules  

[[Page 17004]]


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DEPARTMENT OF ENERGY

10 CFR Part 431

[EERE-2017-BT-TP-0047]
RIN 1904-AE18


Energy Conservation Program: Test Procedures for Small Electric 
Motors and Electric Motors

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

ACTION: Notice of proposed rulemaking and request for comment.

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SUMMARY: The U.S. Department of Energy (DOE) proposes amending its test 
procedures for small electric motors. First, DOE proposes further 
harmonizing its procedures with industry practice by incorporating a 
new industry standard manufacturers would be permitted to use in 
addition to the industry standards currently incorporated by reference 
as options for use when testing small electric motor efficiency. 
Second, with respect to electric motors, DOE proposes further 
harmonizing its test procedures by incorporating an additional industry 
standard to the two that are already incorporated by reference as 
options when testing the efficiency of this equipment. Each of these 
changes is expected to reduce testing burdens on manufacturers. 
Finally, DOE proposes to adopt industry provisions related to the test 
conditions to ensure the comparability of test results for small 
electric motors. None of these proposed changes would affect the 
measured average full-load efficiency of small electric motors or the 
measured nominal full-load efficiency of electric motors when compared 
to the current test procedures.

DATES: DOE will accept comments, data, and information regarding this 
proposal no later than June 24, 2019. See section V, ``Public 
Participation,'' for details. DOE will hold a public meeting on this 
proposed test procedure if one is requested by May 7, 2019.

ADDRESSES: Any comments submitted must identify the Test Procedure NOPR 
for small electric motors and electric motors and provide docket number 
EERE-2017-BT-TP-0047 and/or regulatory information number (RIN) 1904-
AE18. Comments may be submitted using any of the following methods:
    Federal eRulemaking Portal: http://www.regulations.gov. Follow the 
instructions for submitting comments.
    Email: [email protected]. Include the docket 
number and/or RIN in the subject line of the message.
    Postal Mail: Appliance and Equipment Standards Program, U.S. 
Department of Energy, Building Technologies Office, Mailstop EE-5B, 
1000 Independence Avenue SW, Washington, DC 20585-0121. Telephone: 
(202) 287-1445. If possible, please submit all items on a compact disc 
(``CD''), in which case it is not necessary to include printed copies.
    Hand Delivery/Courier: Appliance and Equipment Standards Program, 
U.S. Department of Energy, Building Technologies Office, 950 L'Enfant 
Plaza SW, Suite 600, Washington, DC 20024. Telephone: (202) 287-1445. 
If possible, please submit all items on a CD, in which case it is not 
necessary to include printed copies.
    No telefacsimilies (faxes) will be accepted. For detailed 
instructions on submitting written comments and additional information 
on the rulemaking process, see section V of this document (Public 
Participation).
    Docket: The docket, which includes Federal Register notices, public 
meeting attendee lists and transcripts, comments, and other supporting 
documents/materials, is available for review at http://www.regulations.gov. All documents in the docket are listed in the 
http://www.regulations.gov index. However, some documents listed in the 
index, such as those containing information that is exempt from public 
disclosure, may not be publicly available.
    The docket web page can be found at http://www.regulations.gov/#!docketDetail;D=EERE-2017-BT-TP-0047. The docket web page contains 
instructions on how to access all documents, including public comments, 
in the docket. See section V.A for information on how to submit 
comments through http://www.regulations.gov.

FOR FURTHER INFORMATION CONTACT: Mr. Jeremy Dommu, U.S. Department of 
Energy, Office of Energy Efficiency and Renewable Energy, Building 
Technologies Program, EE-5B, 1000 Independence Avenue SW, Washington, 
DC 20585-0121. Telephone: (202) 586-9870. Email: 
[email protected].
    Michael Kido, U.S. Department of Energy, Office of the General 
Counsel, GC-33, 1000 Independence Avenue SW, Washington, DC 20585-0121. 
Telephone: (202) 586-8145. Email: [email protected].
    For further information on how to submit a comment, review other 
public comments and the docket, or to request a public meeting, contact 
the Appliance and Equipment Standards Program staff at (202) 287-1445 
or by email: [email protected].

SUPPLEMENTARY INFORMATION: DOE proposes to maintain previously approved 
incorporations by reference or newly incorporate by reference the 
following industry standards into 10 CFR part 431:
    (1) Canadian Standards Association (CSA) CSA Standard C390-10, 
``Test methods, marking requirements, and energy efficiency levels for 
three-phase induction motors.''
    (2) CSA Standard C747-09, ``Energy efficiency test methods for 
small motors.''
    Copies of CSA C390-10 and CSA C747-09 can be obtained from Canadian 
Standards Association, Sales Department, 5060 Spectrum Way, Suite 100, 
Mississauga, Ontario, L4W 5N6, Canada, 1-800-463-6727, or http://www.shopcsa.ca/onlinestore/welcome.asp.
    (3) IEEE 112-2004, ``IEEE Standard Test Procedure for Polyphase 
Induction Motors and Generators.''
    (4) IEEE 112-2017, ``IEEE Standard Test Procedure for Polyphase 
Induction Motors and Generators.''
    (5) IEEE Standard 114-2010, ``Test Procedure for Single-Phase 
Induction Motors.''
    Copies of IEEE 112-2004, IEEE 112-2017, and IEEE 114-2010 can be 
obtained from: IEEE, 445 Hoes Lane, P.O. Box 1331, Piscataway, NJ 
08855-1331, (732) 981-0060, or by visiting http://www.ieee.org.
    (6) IEC 60034-2-1:2014, ``Rotating electrical machines--Part 2-1: 
Standard methods for determining losses and efficiency from tests 
(excluding machines for traction vehicles).''
    (7) IEC 60034-1:2010, ``Rotating electric machines--Part 1: Rating 
and performance''.
    (8) IEC 60051-1:2016, ``Direct acting indicating analogue 
electrical measuring instruments and their accessories--Part 1: 
Definitions and general requirements common to all parts''.
    Copies of IEC 60034-2-1:2014, IEC 60034-1:2010, and IEC 60051-
1:2016 may be purchased from International Electrotechnical Commission, 
3 rue de Varemb[eacute], 1st floor, P.O. Box 131, CH--1211 Geneva 20--
Switzerland, +41 22 919 02 11, or by going to https://webstore.iec.ch/home.
    (9) National Electrical Manufacturers Association (NEMA) MG 1-2016, 
``Motors and Generators.''
    Copies of NEMA MG 1-2016 may be purchases from National Electrical

[[Page 17005]]

Manufacturers Association, 1300 North 17th Street, Suite 900, 
Arlington, Virginia 22209, +1 703 841 3200, or by going to https://www.nema.org.
    For a further discussion of these standards, see section IV.N.

Table of Contents

I. Authority and Background
    A. Authority
    B. Background
II. Synopsis of the Notice of Proposed Rulemaking
III. Discussion
    A. Scope of the Test Procedures for Currently Regulated Small 
Electric Motors and Electric Motors
    1. Definitions Relevant to ``Small Electric Motor''
    2. Scope of the Small Electric Motor Test Procedure
    3. Scope of the Electric Motor Test Procedure
    B. Metric for Small Electric Motors
    1. Average and Nominal Efficiency
    2. Representations
    C. Industry Standards for Existing Test Procedures
    1. IEEE 112-2017
    2. IEC 60034-2-1:2014
    D. Rated Output Power of Small Electric Motors
    1. Background
    2. NEMA Breakdown Torque Method
    3. NEMA Service Factor Load Method
    E. Rated Values Specified for Testing Small Electric Motors
    1. Rated Frequency
    2. Rated Load
    3. Rated Voltage
    F. Test Procedure Costs, Harmonization, and Other Topics
    1. Test Procedure Costs and Impact
    2. Harmonization with Industry Standards
    3. Other Test Procedure Topics
    G. Compliance Date and Waivers
IV. Procedural Issues and Regulatory Review
    A. Review Under Executive Order 12866
    B. Review Under Executive Orders 13771 and 13777
    C. Review Under the Regulatory Flexibility Act
    D. Review Under the Paperwork Reduction Act of 1995
    E. Review Under the Treasury and General Government 
Appropriations Act, 1999
    F. Review Under the National Environmental Policy Act of 1969
    G. Review Under Executive Order 13132
    H. Review Under Executive Order 12988
    I. Review Under the Unfunded Mandates Reform Act of 1995
    J. Review Under Executive Order 12630
    K. Review Under Treasury and General Government Appropriations 
Act, 2001
    L. Review Under Executive Order 13211
    M. Review Under Section 32 of the Federal Energy Administration 
Act of 1974
    N. Description of Materials Incorporated by Reference
V. Public Participation
    A. Submission of Comments
    B. Issues on Which DOE Seeks Comment
VI. Approval of the Office of the Secretary

I. Authority and Background

    DOE is authorized to establish and amend energy conservation 
standards and test procedures for small electric motors and electric 
motors.\1\ (42 U.S.C. 6311(1)(A); 42 U.S.C. 6317(b)) The current DOE 
test procedures for small electric motors appear at Title 10 of the 
Code of Federal Regulations (``CFR'') section 431.444. The current DOE 
test procedures for electric motors appear in appendix B to subpart B 
of 10 CFR part 431 (``Appendix B''). The following sections discuss 
DOE's authority to amend test procedures for small electric motors and 
electric motors, as well as relevant background information regarding 
DOE's consideration of test procedures for these motors.
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    \1\ EPCA authorized DOE to establish and amend energy 
conservation standards and test procedure for small electric motors 
pending a determination of feasibility and justification (42 U.S.C. 
6317(b)), completed on July 10, 2006. 71 FR 38799
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A. Authority

    The Energy Policy and Conservation Act of 1975, as amended 
(``EPCA'') \2\ (42 U.S.C. 6291-6317), among other things, authorizes 
DOE to regulate the energy efficiency of a number of consumer products 
and industrial equipment. In 1978, Title III, Part C \3\ of EPCA was 
added by section 441(a) of Title IV of the National Energy Conservation 
Policy Act, Public Law 95-619 (November 9, 1978), which established the 
Energy Conservation Program for Certain Industrial Equipment, and set 
forth a variety of provisions designed to improve the energy efficiency 
of certain industrial equipment. Later, in 1992, the Energy Policy Act 
of 1992, Public Law 102-486 (October 24, 1992), further amended EPCA by 
adding, among other things, provisions governing the regulation of 
small electric motors. EPCA was further amended by the American Energy 
Manufacturing Technical Corrections Act, Public Law 112-210 (December 
18, 2012), which explicitly permitted DOE to examine the possibility of 
regulating ``other motors'' in addition to those electric and small 
electric motors that Congress had already otherwise defined and 
required DOE to regulate. (42 U.S.C. 6311(1)(A), 6311(2)(B)(xiii); 42 
U.S.C. 6317(b))
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    \2\ All references to EPCA in this document refer to the statute 
as amended through America's Water Infrastructure Act of 2018, 
Public Law 115-270 (October 23, 2018).
    \3\ For editorial purposes, upon codification into the U.S. 
Code, Part C was re-designated as Part A-1.
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    Under EPCA, DOE's energy conservation program consists of four 
parts: (1) Testing, (2) labeling, (3) Federal energy conservation 
standards, and (4) certification and enforcement procedures. Relevant 
provisions of the Act include definitions (42 U.S.C. 6311), energy 
conservation standards (42 U.S.C. 6313), test procedures (42 U.S.C. 
6314), labeling provisions (42 U.S.C. 6315), and the authority to 
require information and reports from manufacturers (42 U.S.C. 6316). 
EPCA includes specific authority to establish test procedures and 
standards for small electric motors. (42 U.S.C. 6317(b))
    Federal energy efficiency requirements for covered equipment 
established under EPCA generally supersede State laws and regulations 
concerning energy conservation testing, labeling, and standards. (42 
U.S.C. 6316(a) and (b); 42 U.S.C. 6297)
    The Federal testing requirements consist of test procedures that 
manufacturers of covered equipment must use as the basis for: (1) 
Certifying to DOE that their equipment complies with the applicable 
energy conservation standards adopted pursuant to EPCA (42 U.S.C. 
6316(a); 42 U.S.C. 6295(s)), and (2) making representations about the 
efficiency of that equipment. (42 U.S.C. 6314(d)) Similarly, DOE uses 
these test procedures to determine whether the equipment complies with 
relevant standards promulgated under EPCA. (42 U.S.C. 6316(a); 42 
U.S.C. 6295(s))
    Under 42 U.S.C. 6314, EPCA sets forth criteria and procedures for 
prescribing and amending test procedures for covered equipment. EPCA 
provides in relevant part that any test procedures prescribed or 
amended under this section must be reasonably designed to produce test 
results which reflect the energy efficiency, energy use, or estimated 
annual operating cost of covered equipment during a representative 
average use cycle or period of use and not be unduly burdensome to 
conduct. (42 U.S.C. 6314(a)(2))
    In addition, if DOE determines that a test procedure amendment is 
warranted, it must publish proposed test procedures and offer the 
public an opportunity to present oral and written comments on them. (42 
U.S.C. 6314(b))
    EPCA also requires that, at least once every 7 years, DOE evaluate 
test procedures for each type of covered equipment including small 
electric motors, to determine whether amended test procedures would 
more accurately or fully comply with the requirements for the test 
procedures to not be unduly burdensome to conduct and be reasonably 
designed to produce test results that reflect the energy efficiency, 
energy use, and estimated operating costs during a representative 
average use cycle. (42 U.S.C. 6314(a)(1)) If the

[[Page 17006]]

Secretary determines that a test procedure amendment is warranted, the 
Secretary must publish proposed test procedures in the Federal 
Register, and afford interested persons an opportunity (of not less 
than 45 days' duration) to present oral and written data, views, and 
arguments on the proposed test procedures. (42 U.S.C. 6314(b)) DOE is 
publishing this NOPR to satisfy the 7-year review requirement specified 
in EPCA, which requires that DOE publish either a final rule amending 
the test procedures or a determination that amended test procedures are 
not required. (42 U.S.C. 6314(a)(1)(A))

B. Background

    EPCA defines ``small electric motor,'' as ``a NEMA general purpose 
alternating current single-speed induction motor, built in a two-digit 
frame number series in accordance with NEMA Standards Publication MG 1-
1987.'' (42 U.S.C. 6311(13)(G)) (The term ``NEMA'' refers to the 
National Electrical Manufacturers Association.) EPCA directed DOE to 
establish a test procedure for small electric motors for which DOE 
makes a determination that energy conservation standards would be 
technologically feasible and economically justified, and would result 
in significant energy savings. (42 U.S.C. 6317(b)(1)) On July 10, 2006, 
DOE published its determination that energy conservation standards for 
certain polyphase and certain single-phase, capacitor-start, induction-
run, small electric motors are technologically feasible and 
economically justified, and would result in significant energy savings. 
71 FR 38799. In a final rule published July 7, 2009, DOE adopted test 
procedures for small electric motors. 74 FR 32059. EPCA also required 
that following establishment of the required test procedures, DOE 
establish energy conservation standards for those small electric motors 
for which test procedures were prescribed. (42 U.S.C. 6317(b)(2)) In a 
final rule published on March 9, 2010 (the ``March 2010 ECS final 
rule''), DOE adopted energy conservation standards for small electric 
motors. 75 FR 10874.\4\
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    \4\ A technical correction was published on April 5, 2010, to 
correct the compliance date. 75 FR 17036.
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    Subsequently, DOE updated the test procedures for small electric 
motors on May 4, 2012 (the ``May 2012 EM/SEM TP final rule''). 77 FR 
26608. The existing test procedures for small electric motors appear at 
10 CFR 431.444, and incorporate certain industry standards from the 
Institute of Electrical and Electronics Engineers (``IEEE'') and 
Canadian Standards Association (``CSA''), as listed in Table I-1.

  Table I-1--Industry Standards Currently Incorporated by Reference for
                          Small Electric Motors
------------------------------------------------------------------------
         Equipment description               Industry test procedure
------------------------------------------------------------------------
Single-phase small electric motors.....  IEEE 114-2010, CSA C747-09.
Polyphase small electric motors less     IEEE 112-2004 Test Method A,
 than or equal to 1 horsepower.           CSA C747-09.
Polyphase small electric motors greater  IEEE 112-2004 Test Method B,
 than 1 horsepower.                       CSA C390-10.
------------------------------------------------------------------------

    DOE published a request for information pertaining to the test 
procedures for small electric motors and electric motors. 82 FR 35468 
(July 31, 2017) (the ``July 2017 TP RFI''). In the July 2017 TP RFI, 
DOE solicited public comments, data, and information on all aspects of, 
and any issues or problems with, the existing DOE test procedure for 
small electric motors, including on any needed updates or revisions. 
DOE also discussed potential categories of electric motors (as defined 
at 10 CFR 431.12) that may be considered in future DOE test procedures. 
82 FR at 35470-35474. At the request of commenters, DOE extended the 
comment period for the July 2017 TP RFI in a notice published on August 
30, 2017. 82 FR 41179.
    DOE received a number of comments in response to the July 2017 TP 
RFI.\5\ This NOPR proposes to further clarify the test procedures for 
small electric motors and incorporate an additional industry test 
method for testing small electric motors and electric motors. Comments 
regarding other matters related to electric motors are not addressed in 
this document. DOE also notes that it received a number of comments 
unrelated to either small electric motors or electric motors--these are 
also not addressed.\6\
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    \5\ All comments received in response to the July 2017 TP RFI 
are available for review at http://www.regulations.gov under docket 
number EERE-2017-BT-TP-0047.
    \6\ Anonymous, No. 9, No. 11, No. 12, No. 13, No. 14, No. 15, 
and No. 17; Raymond Calore, No. 10.
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II. Synopsis of the Notice of Proposed Rulemaking

    In this notice of proposed rulemaking (``NOPR''), DOE proposes to 
update 10 CFR part 431 as follows:
    (1) Incorporate by reference a revised test procedure for the 
measurement of energy efficiency in small electric motors and electric 
motors, the Institute of Electrical and Electronics Engineers 
(``IEEE'') 112-2017, ``IEEE Standard Test Procedure for Polyphase 
Induction Motors and Generators;''
    (2) Incorporate by reference an alternative test procedure for the 
measurement of energy efficiency in small electric motors and electric 
motors, the International Electrotechnical Commission (``IEC'') 60034-
2-1:2014, ``Standard methods for determining losses and efficiency from 
tests (excluding machines for traction vehicles);''
    Add definitions for ``rated load'', ``rated output power'', and 
``breakdown torque'' of small electric motors based on NEMA MG 1-2016; 
and
    Specify the frequency used for testing and specify that 
manufacturers select the voltage used for testing
    Table II-1 summarizes the proposed test procedure amendments 
compared to the current test procedure as well as the reason for the 
change.

[[Page 17007]]



      Table II-1--Synopsis of the Notice of Proposed Test Procedure
------------------------------------------------------------------------
                                     Proposed test         Reason for
    Current test procedure             procedure         proposed change
------------------------------------------------------------------------
Incorporates by reference IEEE  --Adds IEEE 112-2017    Achieve
 112-2004 to measure full-load   as an alternative to    consistency
 efficiency of polyphase small   IEEE 112-2004. This     with industry
 electric motors.                latest version:         update to IEEE
                                --Updates certain        112.
                                 requirements
                                 regarding measurement
                                 instrument selection
                                 and accuracy.
                                --Aligns core loss
                                 calculation with CSA
                                 390-10 and Method 2-1-
                                 1B of IEC 60034-2-
                                 1:2014.
Does not incorporate by         --Adds Method 2-1-1B    Address
 reference IEC 60034-2-1:2014.   of IEC 60034-2-1:2014   suggestions
                                 as an alternative to    offered in
                                 IEEE 112-2004 Test      industry
                                 Method B, IEEE 112-     petition (EERE-
                                 2017 Test Method B      2017-BT-TP-0047
                                 and CSA C390-10.        -0030).
                                --Adds method 2-1-1A
                                 of IEC 60034-2-1:2014
                                 as an alternative to
                                 IEEE 114-2010, IEEE
                                 112-2004, IEEE 112-
                                 2017 Test Method A
                                 and CSA C747-09.
For Small Electric Motors:      --Adds definition for   Harmonize with
 Specifies testing at rated      ``rated load'' (and     definitions
 load but does not define that   ``rated output          from industry
 term.                           power'' and             standards.
                                 ``breakdown torque''
                                 to support the
                                 definition of ``rated
                                 load'') of small
                                 electric motors based
                                 on NEMA MG 1-2016.
For Small Electric Motors:      --Adds a definition     Improved
 Specifies testing at rated      for rated voltage,      repeatability
 voltage and rated frequency,    which provides that     of the test
 but does not define those       manufacturers select    procedure.
 terms.                          the voltage that is
                                 used for testing, and
                                 a definition for
                                 rated frequency.
------------------------------------------------------------------------

    DOE has tentatively determined that the proposed amendments 
described in section III of this NOPR would not alter the measured 
efficiency of small electric motors or electric motors, and that the 
proposed test procedures would not be unduly burdensome to conduct. 
Discussion of DOE's proposed actions are addressed in detail in section 
III of this NOPR.

III. Discussion

A. Scope of the Test Procedures for Currently Regulated Small Electric 
Motors and Electric Motors

    This NOPR does not propose changes to the scope of the test 
procedure with respect to small electric motors and electric motors. 
DOE discusses test procedure scoping issues for currently regulated 
motors in sections III.A.1 through III.A.3 of this document.
1. Definitions Relevant to ``Small Electric Motor''
    EPCA defines the term ``small electric motor'' as ``a NEMA general 
purpose alternating-current single-speed induction motor, built in a 
two-digit frame number series in accordance with NEMA Standards 
Publication MG 1-1987.'' 42 U.S.C. 6311(13)(G) After considering 
comments received on its proposal for establishing test procedures for 
evaluating small electric motor efficiency, DOE adopted a modified 
version of this definition at 10 CFR 431.442 in an attempt to clarify 
that the term also encompassed those motors that were built as ``IEC 
metric equivalent motors.'' 74 FR 32059, 32062. DOE made this 
adjustment to its regulatory definition to ensure that those motors 
that otherwise satisfied the small electric motor definition but were 
built in accordance with metric-units would be treated in a like manner 
as their counterparts that were built in accordance with U.S. customary 
units of measurement. DOE offered three primary reasons in support of 
this approach.
    First, IEC-equivalent small electric motors generally can perform 
the identical functions of those motors strictly defined under EPCA. 
DOE noted that the differences in criteria between the relevant IEC and 
MG 1-1987 provisions lay in the nomenclature, units of measurement, 
standard motor configurations and design details--not in the function 
of the motor itself. Consequently, DOE concluded that in most general 
purpose applications, IEC motors can be used interchangeably with small 
electric motors built in accordance with MG 1-1987. See 74 FR 32059, 
32062.
    Second, a broad exclusion of IEC-equivalent motors from DOE's 
regulatory framework would create a regulatory gap. Moreover, any 
efficiency standards applying to small electric motors built according 
to MG 1-1987's specified units of measurement would be readily 
applicable to IEC motors. See 74 FR 32059, 32062.
    Finally, treating IEC-based motors as falling outside of the small 
electric motor definition would effectively provide preferential 
treatment to manufacturers of IEC motors. DOE noted at the time that 
the creation of such a situation would likely lead to a reduction in 
the production of NEMA (i.e., MG 1-1987-based) motors while encouraging 
the increased production of IEC motors that, if unaddressed, would be 
inadvertently treated as unregulated motors. See 74 FR 32059, 32062.
    The current definition at 10 CFR 431.442 lists the criteria that 
must be met for a motor to be defined as a ``small electric motor.'' 
Under these criteria, a small electric motor is:

     A NEMA general purpose motor \7\ that
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    \7\ In response to questions from NEMA and various motor 
manufacturers, DOE issued a guidance document that identifies some 
key design elements that manufacturers should consider when 
determining whether a given individual motor meets the small 
electric motor definition and is subject to the energy conservation 
standards promulgated for small electric motors. See https://www.regulations.gov/document?D=EERE-2017-BT-TP-0047-0082.
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    [cir] Uses alternating current, and
    [cir] Is single-speed, and
    [cir] Is an induction motor; and
    [cir] Is built in a two-digit frame size in accordance with NEMA 
Standards Publication MG 1-1987, including IEC metric equivalent 
motors.

    See 10 CFR 431.442.
    In response to the July 2017 TP RFI, NEMA supported maintaining all 
existing criteria specified in the current regulatory definition. 
(NEMA, No. 24, at p. 7) \8\ No other commenters argued in favor of 
altering the current definition. Accordingly, DOE is not proposing to 
modify the definition of small electric motor. However, a number of 
issues

[[Page 17008]]

relevant to small electric motors were also raised and are discussed in 
the following sections.
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    \8\ A notation in this form provides a reference for information 
that is in the docket of DOE's rulemaking to develop test procedures 
for small electric motors and electric motors (EERE-2017-BT-TP-
0047), which is maintained at http://www.regulations.gov. This 
notation indicates that the statement preceding the reference is 
document number 0024 in the docket for small electric motor and 
electric motor test procedure rulemaking, and appears at page 7 of 
that document.
---------------------------------------------------------------------------

a. Synchronous Operation
    In the July 2017 TP RFI, DOE included a table of motor topologies, 
categorized by induction or synchronous operation. 82 FR 35468, 35471. 
In response to the July 2017 TP RFI, Advanced Energy commented that 
line-start permanent magnet motors are better classified as synchronous 
motors rather than as induction (or asynchronous) motors. Advanced 
Energy noted that these motors do not operate on the principle of 
induction (i.e., production of electric current in a conductor by 
varying the magnetic field applied to it), and the presence of the 
squirrel cage is only for starting the motor. (Advanced Energy, No. 25 
at p. 3)
    DOE agrees that line-start permanent magnet motors are more 
properly considered synchronous, rather than induction, motors. Line-
start permanent magnet motors contain inductive elements, but these 
elements are used only to start the motor and bring it to synchronous 
operation. As a result, the inductive portions of the motor are not 
representative of the motor's operation. As noted earlier, the 
definition of ``small electric motor'' limits the test procedure's 
scope to induction motors. Accordingly, line-start permanent magnet 
motors are best classified as synchronous motors rather than induction 
motors, and would not fall under the small electric motor definition or 
be subject to the small electric motor test procedure.
b. Rated Output Power
    DOE's regulations provide a method for evaluating small electric 
motor efficiency. See 10 CFR 431.444. As part of its review of the 
current test procedures for this equipment, DOE discussed the 
possibility of revising the output power range for motors considered in 
the scope of applicability of this test procedure. 82 FR 35468, 35470. 
As explained in the 2017 TP RFI, only motors with a power rating of 
greater than or equal to 0.25 horsepower (``hp'') and less than or 
equal to 3 hp \9\ are subject to the regulations in subpart X to 10 CFR 
part 431. 82 FR 35468, 35470. DOE used the existing scope for small 
electric motors as a starting point, and reviewed market data to 
determine whether the limits could be revised. Specifically, DOE 
discussed considering a lower output power limit of 0.125 hp. Id.. In 
the July 2017 TP RFI, DOE also discussed applying an upper limit of 15 
hp for single-phase electric motors and of 5 hp for 2-digit frame size 
polyphase electric motors. Id..
---------------------------------------------------------------------------

    \9\ For certain motor configurations within this range, DOE has 
not established standards. See 10 CFR 431.446.
---------------------------------------------------------------------------

    NEMA opposed changes to the current output power range of regulated 
motors. (NEMA, No. 24 at p. 6) Advanced Energy commented that 15 hp and 
5 hp upper limits for single and polyphase motors in two-digit frames 
are reasonable. However, Advanced Energy noted that expanding the scope 
to include motors in the subfractional horsepower range may not lead to 
significant energy savings. (Advanced Energy, No. 25, at p. 2) The 
Pacific Gas and Electric Company, Southern California Gas Company, San 
Diego Gas and Electric, and Southern California Edison (hereafter 
referred to as the ``CA IOUs'') commented in support of expanding the 
scope of small electric motor test procedures to 0.125 hp through 15 
hp. The CA IOUs noted that having greater information about the small 
motor market has many benefits, such as aiding in the development of 
new utility incentive programs. (CA IOUs, No. 26 at p. 2)
    As stated in section III.A, DOE is not proposing to modify the 
present scope of test procedure applicability; DOE is not proposing to 
include motors with additional horsepower ratings. If finalized as 
proposed, the test procedure would continue to apply to small electric 
motors as pursuant to EPCA. See 10 CFR 431.444.
    DOE requests comments on its proposal to maintain the current scope 
of applicability, with respect to horsepower ratings, of the small 
electric motors test procedure.
c. Motors Used as a Component of Another Covered Product
    Under EPCA, no standard prescribed for small electric motors shall 
apply to any such motor that is a component of a covered product under 
section 322(a) of EPCA (42 U.S.C. 6292(a)), or of covered equipment 
under section 340 (42 U.S.C. 6311). (42 U.S.C. 6317(b)(3). In the July 
2017 TP RFI, DOE requested comment on the feasibility of testing motors 
that are components of other equipment. While not offering comment on 
testing, NEMA, AHAM and AHRI, McMillan Electric Company, Detech Inc., 
and Lennox International indicated that they do not support regulating 
motors as components of covered products or equipment but instead 
supported a finished-product approach to energy efficiency regulations. 
(NEMA, No. 24 at p. 1; AHAM and AHRI, No. 21 at p. 2-3; McMillian 
Electric Company, No. 16 at p. 1; Detech Inc., no. 18 at p. 1; Lennox, 
No. 22 at p. 1-2) As noted, EPCA directed DOE to establish test 
procedures and energy conservation standards for small electric motors, 
except those motors that are a component of a covered product or 
covered equipment, (42 U.S.C. 6317(b)), and this NOPR, which focuses 
solely on test procedure issues, does not propose altering the scope of 
applicability of that procedure or related energy conservation 
standards.
d. Air-Over Motors
    DOE defines the term ``air-over electric motor'' as ``an electric 
motor rated to operate in and be cooled by the airstream of a fan or 
blower that is not supplied with the motor and whose primary purpose is 
providing airflow to an application other than the motor driving it.'' 
10 CFR 431.12. In the July 2017 TP RFI, DOE sought comment on defining 
``air-over electric motors''--among others--based on physical and 
technical features of the motor. 82 FR 35468, 35473.
    Air-over electric motors do not have a factory-attached fan and 
require a separate means of convecting air over the frame of the motor. 
The external cooling keeps internal motor winding temperatures beneath 
the motor's insulation class' permissible temperature rise or the 
maximum temperature value specified by the manufacturer. Without 
external cooling, the air-over electric motor would overheat during 
continuous operation. Air-over motors can be found in direct-drive 
axial fans, blowers and several other applications. Single-phase air-
over motors are widely used in residential and commercial HVAC systems, 
appliances, and equipment as well as in agricultural applications.
    DOE reviewed catalog offerings of air-over motors to understand the 
typical configurations available on the market. Air-over motors can be 
broadly categorized into open air-over and enclosed air-over motors and 
into polyphase and single-phase motors.
    In terms of physical construction, DOE did not find clear 
differences between air-over motors and non-air-over motors. For 
example, there is little difference between a totally-enclosed fan-
cooled motor (``TEFC'') and a totally-enclosed air-over motor 
(``TEAO''). In fact, a user could remove the fan on a TEFC motor, and 
then place the motor in an airstream of the application to obtain an 
air-over motor configuration. Further, the absence of a fan is not a 
differentiating feature as with other motor categories, such as 
totally-enclosed non-ventilated

[[Page 17009]]

(``TENV'') motors, which do not have internal fans or blowers and are 
similar in construction to TEAO motors.
    Based on these observations, DOE initially finds that what 
differentiates air-over motors from non-air-over motors is that air-
over motors require external cooling by a free flow of air to avoid 
overheating during continuous operation. That is, the internal motor 
winding temperatures would exceed the maximum temperature value 
corresponding to the motor's insulation class or specified by the 
manufacturer. The risk of overheating can be verified by observing 
whether the motor's temperature keeps rising during a rated load 
temperature test instead of stabilizing. During a rated load 
temperature test, the motor is loaded at its rated full load using a 
dynamometer until it is thermally stable. The current industry 
standards referenced by the existing DOE small electric motors test 
procedure each contain a rated load temperature test, wherein thermal 
stability is defined as the condition where the motor temperature does 
not change by more than 1 [ordm]C over either 30 minutes or 15 minutes, 
depending on the motor category (See section 5.8.4.4 of IEEE 112-2004 
and section 10.3.1.3 of IEEE 114-2010). Further, specifying that 
external cooling is obtained by a free flow of air would differentiate 
air-over motors from other totally-enclosed pipe-ventilated motors.
    In the July 2017 TP RFI, DOE discussed potentially revising the 
definition of an air-over electric motor as a motor that does not 
thermally stabilize without the application of external cooling by a 
free flow of air during a rated temperature test according to either 
IEEE 112-2004, CSA C747-09, or CSA C390-10 for polyphase motors or IEEE 
114-2010 or CSA C747-09 for single-phase motors.'' 82 FR 35468, 35472-
35473.
    NEMA and Advanced Energy asserted that it would be extremely 
difficult or impossible to identify air-over motors by physical and 
technical features alone. (NEMA, No. 24 at p. 6; Advanced Energy, No. 
25 at p. 4) Advanced Energy stated that air-over motors could be 
defined by their inability to achieve a stable temperature under 
standard test conditions. (Advanced Energy, No. 25 at p. 4) Advanced 
Energy suggested that the term ``rated temperature test'' be replaced 
by ``rated load temperature test,'' and emphasized the need to specify 
that the external cooling air comes from a source that is not 
mechanically attached to the motor. Advanced Energy suggested that air-
over motors be defined as ``a motor that does not reach thermal 
equilibrium (or thermal stability) during a rated load temperature test 
according to test standards incorporated by reference, without the 
application of forced cooling by a free flow of air from an external 
device not mechanically connected to the motor.'' (Advanced Energy, No. 
25 at pp. 4-5) Advanced Energy further added that the term ``thermal 
equilibrium'' in its recommended air-over motor definition is defined 
in the referenced test standards, but that DOE could consider adding a 
definition for that term as part of the air-over motor definition. 
(Advanced Energy, No. 25 at p. 5) Finally, Lennox commented that air-
over motors are already defined at 10 CFR 431.12, and did not see a 
need to make changes to this definition. (Lennox, No. 22, at p. 4)
    As stated in section III.A of this NOPR, DOE is not proposing to 
modify the scope of applicability of the current test procedures for 
small electric motors and electric motors. The definition of air-over 
electric motors implicates equipment beyond those electric and small 
electric motors DOE already regulates under subpart B of 10 CFR part 
431. As a result, DOE is not proposing to amend the definition at this 
time.
2. Scope of the Small Electric Motor Test Procedure
    In the March 2010 ECS final rule, DOE identified motor topologies 
that met the small electric motor definition. DOE reviewed the 
topologies of alternating-current single-speed induction motors, 
identifying six in total: Split-phase, shaded-pole, capacitor-start 
induction-run (``CSIR''), capacitor-start capacitor-run (``CSCR''), 
permanent-split capacitor (``PSC''), and polyphase (see descriptions in 
Table III-1). 75 FR 10874, 10882.

     Table III-1--Alternating Current, Single-Speed, Induction Motor
                               Topologies
------------------------------------------------------------------------
             Topology                            Description
------------------------------------------------------------------------
Permanent-Split Capacitor.........  A capacitor motor * having the same
                                     value of capacitance for both
                                     starting and running conditions.
                                     (MG 1-2014, 1.20.3.3.2).
Capacitor-Start Induction-Run.....  A capacitor motor * in which the
                                     capacitor phase is in the circuit
                                     only during the starting period.
                                     (MG 1-2014, 1.20.3.3.1).
Capacitor-Start Capacitor-Run.....  A capacitor motor * using different
                                     values of effective capacitance for
                                     the starting and running
                                     conditions. (MG 1-2014,
                                     1.20.3.3.3).
Shaded-Pole.......................  A single-phase induction motor
                                     provided with an auxiliary short-
                                     circuited winding or windings
                                     displaced in magnetic position from
                                     the main winding. (MG 1-2014,
                                     1.20.3.4).
Split-phase.......................  A single-phase induction motor
                                     equipped with an auxiliary winding,
                                     displaced in magnetic position
                                     from, and connected in parallel
                                     with the main winding. (MG 1-2014,
                                     1.20.3.1).
Polyphase induction, squirrel cage  A polyphase induction motor in which
                                     the secondary circuit (squirrel-
                                     cage winding) consists of a number
                                     of conducting bars having their
                                     extremities connected by metal
                                     rings or plates at each end. (MG 1-
                                     2014, 1.18.1.1).
------------------------------------------------------------------------
* A capacitor motor is a single-phase induction motor with a main
  winding arranged for direct connection to a source of power and an
  auxiliary winding connected in series with a capacitor. (MG 1-2014
  1.20.3.3).

    Of these six topologies, DOE concluded that three would satisfy the 
small electric motor definition: CSIR, CSCR, and certain polyphase 
motors. Id. Therefore, DOE added subpart X of 10 CFR part 431 to 
address energy conservation standards and test procedures regarding 
these three topologies that meet the definition of a small electric 
motor.
    DOE received a number of comments related to the test procedure's 
scope in response to the July 2017 TP RFI. Many of these comments 
addressed whether the test procedure should be expanded to apply to 
additional motors. Parties commenting on the test procedure's scope are 
listed in Table III-2:

[[Page 17010]]



      Table III-2--Parties Commenting on the Test Procedure's Scope
------------------------------------------------------------------------
                      Party                             Affiliation
------------------------------------------------------------------------
Advanced Energy.................................  Laboratory.
AHAM and AHRI (Association of Home Appliance      Trade Association--
 Manufacturers and Air-conditioning, Heating,      Manufacturer.
 and Refrigeration Institute).
Anonymous Commenters (7 total)..................  Anonymous.
APSP (Association of Pool and Spa Professionals)  Trade Association--
                                                   Manufacturer.
CA IOUs (Pacific Gas and Electric Company,        Utility.
 Southern California Gas Company, San Diego Gas
 and Electric, Southern California Edison).
CEC (California Energy Commission)..............  State Government.
Detech Inc. (Detector Technology Inc.)..........  Manufacturer.
EEI (Edison Electric Institute).................  Association--Utility.
Gent University.................................  University.
Joint Advocates (American Council for an Energy-  Efficiency Advocate.
 efficient Economy, Appliance Standards
 Awareness Project, Northwest Power and
 Conservation Council, Northwest Energy
 Efficiency Alliance).
Lennox (Lennox International Inc.)..............  Manufacturer.
McMillan Electric Company.......................  Manufacturer.
NEMA (National Electrical Manufacturers           Trade Association--
 Association).                                     Manufacturer.
Raymond Calore..................................  Individual.
------------------------------------------------------------------------

    As stated, DOE is not proposing to modify the test procedure's 
scope; instead, the test procedure would continue to apply only to 
small electric motors that are currently subject to the DOE's existing 
test procedure at 10 CFR 431.444.
3. Scope of the Electric Motor Test Procedure
    As noted, this NOPR also addresses the test procedure for electric 
motors in response to a petition for rulemaking. The current electric 
motor test procedure is at subpart B of 10 CFR part 431. DOE is not 
proposing any changes to the scope of applicability of the electric 
motor test procedure.

B. Metric for Small Electric Motors

    DOE's existing test procedure for small electric motors requires 
that motor efficiency of this equipment be determined using the average 
full-load efficiency of the small electric motor's basic model. 10 CFR 
431.445(b)(1). This formulation of efficiency represents the mechanical 
output power at full-load (i.e., the rated output power) divided by the 
electrical input power, and is expressed as a percentage. DOE further 
requires manufacturers to test at least five units of a basic model to 
determine the limit on represented value of average full-load 
efficiency by applying the equations at 10 CFR 431.445(c)(3). See 10 
CFR 431.445(c)(2).
1. Average and Nominal Efficiency
    In response to the July 2017 TP RFI, NEMA and Advanced Energy 
suggested that DOE's test procedure use the NEMA nominal, rather than 
average, full load efficiency metric for small electric motors.\10\ 
(NEMA, No. 24 at p. 8; Advanced Energy, No. 25 at p. 9) NEMA stated 
that the NEMA nominal full load efficiency metric is established in the 
industry and is harmonized with global IEC standards. NEMA asserted 
that the difference between the metrics used for electric motor 
standards and small electric motor standards causes confusion in the 
industry. (NEMA, No. 24 at p. 8) Advanced Energy stated that if DOE 
decided to use the NEMA nominal efficiency metric for small electric 
motors, DOE would need to ensure that the translation from average 
efficiencies to nominal efficiencies would not change the stringency of 
existing energy conservation standards. (Advanced Energy, No. 25 at p. 
8)
---------------------------------------------------------------------------

    \10\ Currently, small electric motor efficiency is based on 
average full load efficiency while electric motor efficiency is 
based on nominal full load efficiency.
---------------------------------------------------------------------------

    The nominal efficiency values for electric motors are based on a 
sequence of discretized standard values in NEMA Standard MG 1-2016 
Table 12-10, and are familiar to motor users. Under this approach, the 
full-load efficiency is identified on the electric motor nameplate by a 
nominal efficiency selected from Table 12-10 that shall not be greater 
than the average efficiency of a large population of motors of the same 
design. However, NEMA has not adopted a comparable set of standardized 
values for small electric motors. Because no standardized nominal 
values are published for small electric motors, DOE is unable to 
consider at this time their appropriateness as a small electric motors 
performance metric. Absent standardized nominal values for small 
electric motors, DOE is unable to ascertain whether existing energy 
conservation standards would require the same level of stringency if 
based on nominal values. As a result, this NOPR does not propose to 
adopt NEMA's suggestion to amend the metric for small electric motor 
energy conservation standards (i.e., average full-load efficiency).
2. Representations
    In response to the July 2017 TP RFI, AHAM and AHRI commented that 
if DOE elects to expand the scope of the small electric motors and 
electric motors test procedures, DOE should not make these newly 
expanded test procedures mandatory, including for representations, 
until or unless energy conservation standards are established. (AHAM 
and AHRI, No. 21 at p. 4)
    As discussed in section III.A of this NOPR, DOE is not proposing to 
expand the scope of applicability of the small electric motors test 
procedure.

C. Industry Standards for Existing Test Procedures

    The DOE test procedures rely on industry standards that are 
incorporated by reference at 10 CFR 431.443 and 10 CFR 431.15. 
Specifically, the existing DOE test procedures for small electric 
motors and electric motors rely on the following test methods:
    (1) For polyphase small electric motors of less than or equal to 1 
hp, either Section 6.3 ``Efficiency Test Method A, Input-Output'' of 
IEEE 112-2004, ``IEEE Standard Test Procedure for Polyphase Induction 
Motors and Generators;'' or CSA C747-09, ``Energy Efficiency Test 
Methods for Small Motors'' (10 CFR 431.444(b)(2));
    (2) For polyphase small electric motors of greater than 1 hp and 
electric motors, either Section 6.4 ``Efficiency Test Method B, Input-
Output with Loss Segregation'' of IEEE 112-2004; or CSA C390-10, ``Test 
Methods, Marking Requirements, and Energy Efficiency

[[Page 17011]]

Levels for Three-Phase Induction Motors'' (10 CFR 431.444(b)(3); 10 CFR 
431.16 and Appendix B); and
    (3) For single-phase small electric motors: either IEEE 114-2010, 
``IEEE Standard Test Procedure for Single-Phase Induction Motors;'' or 
CSA C747-09 (10 CFR 431.444(b)(1)).
    In response to the July 2017 TP RFI, Advanced Energy commented 
generally that the existing test procedures for small electric motors 
do not require any revisions. (Advanced Energy, No. 25 at p. 9) 
Comments suggesting revisions to specific aspects of the current test 
procedure (e.g., scope, metric, and incorporation of new test methods) 
are discussed elsewhere in this document (see sections III.A.2, III.B, 
and III.C.2).
    DOE conducted a review of each of the referenced industry standards 
to determine whether they still represent the most current procedures 
accepted and used by industry. After the July 2017 TP RFI comment 
period closed (September 13, 2017), IEEE approved an updated edition of 
the IEEE 112 standard on February 14, 2018. Section III.C.1 of this 
document describes DOE's consideration of the updated IEEE 112-2017 
standard. The other referenced industry standards incorporated into 
DOE's test procedure developed by CSA remain current or have been 
reaffirmed without changes.\11\ All of these standards remain among the 
most commonly used industry consensus standards for determining motor 
efficiency. Therefore, as explained later in this section, in 
recognition of the wide acceptance of these testing standards, DOE 
proposes to modify 10 CFR 431.15 and 431.443 by incorporating by 
reference the latest version of IEEE 112, while retaining the 
incorporation by reference of the IEEE 112-2004 standard. In addition, 
section III.C.2 of this document addresses DOE's consideration of 
incorporating by reference an additional industry standard also 
commonly used by the industry.
---------------------------------------------------------------------------

    \11\ Both CSA C747-09 and CSA C390-10 have been reaffirmed in 
2014 and 2015, respectively.
---------------------------------------------------------------------------

    Table III-3 summarizes the industry standards DOE proposes to 
incorporate by reference to use as the basis for measuring motor 
efficiency of currently regulated small electric motors and electric 
motors. The specific industry standards that would be referenced are 
listed in section IV.N of this document.

       Table III-3--Summary of the Proposed Industry Test Methods
------------------------------------------------------------------------
                                                        Industry test
          Equipment                Description             methods
------------------------------------------------------------------------
Small Electric Motors.......  Single-phase........   IEEE 114-
                                                     2010.*
                                                     CSA C747-
                                                     09.*
                                                     IEC 60034-2-
                                                     1:2014 Test Method
                                                     2-1-1A.
                              Polyphase with rated   IEEE 112-
                               output power less     2004 Test Method
                               or equal to 1 hp.     A.*
                                                     IEEE 112-
                                                     2017 Test Method A.
                                                     CSA C747-
                                                     09.*
                                                     IEC 60034-2-
                                                     1:2014 Test Method
                                                     2-1-1A.
                              Polyphase with rated   IEEE 112-
                               output power          2004 Test Method
                               greater than 1 hp.    B.*
                                                     IEEE 112-
                                                     2017 Test Method B.
                                                     CSA C390-
                                                     10.*
                                                     IEC 60034-2-
                                                     1:2014 Test Method
                                                     2-1-1B.
Electric Motors.............  Electric Motors--      IEEE 112-
                               regulated at 10 CFR   2004 Test Method
                               431.25.               B.*
                                                     IEEE 112-
                                                     2017 Test Method B.
                                                     CSA C390-
                                                     10.*
                                                     IEC 60034-2-
                                                     1:2014 Test Method
                                                     2-1-1B.
------------------------------------------------------------------------
* These IEEE and CSA standards are already incorporated by reference in
  the current test procedure and would be maintained as part of this
  proposal.

1. IEEE 112-2017
    On February 14, 2018, IEEE approved IEEE 112-2017, ``IEEE Standard 
Test Procedure for Polyphase Induction Motors and Generators.'' DOE 
conducted a full review of the revised standard to identify any changes 
made relative to the industry test methods that are incorporated by 
reference from IEEE 112-2004.
    Section 4, ``Measurements'', of IEEE 112-2017 includes several 
updates regarding instrument selection and measurement accuracy. 
Specifically, the 2017 revision includes updates to the permissible 
limits of error for general measurement instrumentation, the limits of 
error for torque measurement, and the limits of error for speed 
measurement. In addition, the 2017 revision specifies new requirements 
for limits of error in current measurement, power measurement, and 
frequency measurement. Section 4 also indicates that alcohol 
thermometers are no longer permitted for measuring temperature in the 
2017 revision of IEEE 112.
    The method for calculating core loss used in Section 6.4, 
``Efficiency test method B--Input-output with loss segregation'' was 
revised for the 2017 edition of IEEE 112. Core loss at each load point 
is now determined directly based on the no-load test data at the stator 
core voltage instead of being calculated by subtracting friction, 
windage, and resistive core losses from total no-load losses. This 
change in calculation methodology for core losses aligns the IEEE 112-
2017 Test Method B with the efficiency test method specified in CSA 
C390-10, currently incorporated by reference at 10 CFR 431.444(b)(3). 
DOE further notes that this change also aligns with the Method 2-1-1B 
approach of IEC 60034-2-1:2014.
    Previously, when DOE added CSA 390-10 as a permissible test method 
for small electric motors, DOE concluded that the differences between 
IEEE 112-2004 and CSA 390-10 are minimal, and both tests will result in 
an accurate and similar measurement of efficiency. 77 FR 26608, 26622. 
IEEE 112-2017 uses the same core-loss calculation as CSA C390-10. 
However, DOE has initially determined that the core-loss calculation in 
IEEE 112-2017 may result in a difference in the measured efficiency 
value as compared to the core-loss calculation under the currently 
referenced IEEE 112-2004. In the small electric motor and electric 
motor final rule published on May 4, 2012, commenters indicated the 
difference in efficiency outcome between IEEE 112-2004 and CSA C390-10 
to be within 0.2

[[Page 17012]]

percent. 77 FR 26608, 26622. As discussed, the core loss calculation in 
IEEE 112-2017 aligns with the core loss calculation in CSA C390-10. 
Based on this comparison of IEEE 112-2004 and CSA C390-10, the impact 
of the core-loss calculation between IEEE 112-2004 and IEEE 112-2017 
should be no greater than 0.2 percent. To avoid any potential need to 
retest motors that have relied on IEEE 112-2004 for purposes of 
compliance, DOE is proposing to incorporate the IEEE 112-2017 test 
methods as alternatives to the test methods incorporated in the current 
test procedure, while retaining the currently incorporated IEEE 112-
2004 methods. DOE has initially determined that IEEE 112-2017 will 
result in an accurate and similar measurement of efficiency as compared 
to IEEE 112-2004. Given the variable nature of tested efficiency values 
for electric motors and small electric motors due to manufacturing and 
material differences, the variation in the calculated efficiency is not 
likely to result in any significant change in overall energy efficiency 
test results.
    Since the introduction of the IEEE 112 standard in 1964, IEEE has 
made periodic updates to the standard to keep the test methods current 
with improvements to instrumentation and test techniques, and 
incorporating this update would help to align DOE's test procedures 
with current industry practice. Accordingly, DOE proposes to 
incorporate by reference IEEE 112-2017 Test Method A and Test Method B 
as alternatives to the industry test methods that are currently 
incorporated by reference from IEEE 112-2004 (see 10 CFR 431.15 and 10 
CFR 431.443). This proposal would further harmonize the permitted test 
methods under subparts X (for small electric motors) and B (for 
electric motors) of 10 CFR part 431 and align measurement and 
instrumentation requirements with industry practice, while ensuring 
that motors that have demonstrated compliance under IEEE 112-2004 
methods do not require retesting.
    DOE requests comment on its proposal to incorporate by reference 
IEEE 112-2017 Test Method A and Test Method B as alternatives to the 
currently incorporated industry test standards in IEEE 112-2004. In 
particular, DOE requests data comparing test results of these standards
2. IEC 60034-2-1:2014
    Separate from DOE's July 2017 TP RFI, NEMA and Underwriter 
Laboratories (``UL'') independently submitted written petitions 
requesting that certain portions of IEC 60034-2-1:2014 be adopted as a 
permitted alternative test method for small electric motors and 
electric motors. DOE published a notice regarding its receipt of these 
petitions in November 2017. See 82 FR 50844 (November 2, 2017) 
(hereinafter, ``the November 2017 notice of petition'') (announcing the 
receipt of petitions from UL and NEMA seeking the incorporation of 
certain test methods from IEC 60034-2-1:2014 into DOE's regulations).
    Specifically, NEMA's petition requested that DOE incorporate IEC 
60034-2-1:2014 Method 2-1-1B \12\ as an alternative to IEEE 112-2004 
Test Method B and CSA C390-10, which are currently referenced in 
Appendix B. (NEMA, No. 28.2 at p.1) UL requested that (1) IEC 60034-2-
1:2014 test method 2-1-1B be approved for Appendix B and section 
431.444 of 10 CFR part 431 (as an alternative to CSA C390-10) and (2) 
that IEC 60034-2-1:2014 test method 2-1-1A be approved for section 
431.444 of 10 CFR part 431 (as an alternative to CSA C747-09). (UL, No. 
29.1 at p.1)
---------------------------------------------------------------------------

    \12\ IEC 60034-2-1:2014 Method 2-1-1B (2014), ``Rotating 
Electrical Machines--Part 2-1: Standard methods for determining 
losses and efficiency from tests (excluding machines for traction 
vehicles),'' ``Summation of losses, additional load losses according 
to the method of residual loss.''
---------------------------------------------------------------------------

    The NEMA and UL petitions included and referenced papers that 
compare the testing methodologies presented in IEC 60034-2-1:2014 and 
the IEEE and CSA standards currently referenced in the small electric 
motors and electric motors test procedures at 10 CFR part 431.
    The NEMA petition included a ``work paper'' that summarizes an 
evaluation conducted by the NEMA Motor and Generator Section technical 
committee, which found that the IEC 60034-2-1:2014 Method 2-1-1B test 
method was a suitable alternative to the IEEE 112-2004 Test Method B 
and CSA C390-10 test methods. (NEMA, No. 28.3 at p. 1) This evaluation 
relied on (1) comparison of instrumentation accuracy, test method, and 
calculation approach among the IEC, IEEE, and CSA industry standards, 
(2) analysis of test results from over 500 motors tested at the Hydro-
Quebec Research Institute, and (3) reference to one scientific research 
paper (the ``Angers et al. paper'') which also concluded that all three 
methods[thinsp]provide results that are very closely aligned. (NEMA, 
No. 28.3 at pp. 1-3) NEMA's work paper claimed that the results of the 
Hydro-Quebec Research Institute testing typically showed a loss 
deviation of less than 2 percent. The NEMA petition letter 
also stated a loss difference of 2 percent is (1) within the variation 
of two tests performed using the same motor and test equipment but with 
different operators and at different times of day; and (2) well below 
the typical variation of 10 percent of losses when different labs are 
used to test the same motor. (NEMA, No. 28.3 at p. 2) NEMA commented 
that incorporating IEC 60034-2-1:2014 Method 2-1-1B test method as an 
alternative to the IEEE 112-2004 Test Method B and CSA C390-10 test 
methods would reduce the unnecessary burden of performing a second test 
for motors originally tested to the IEC 60034-2-1:2014 Method 2-1-1B 
test method. (NEMA, No. 28.3 at pp. 3-4) NEMA did not specify the 
number of motors that would benefit from such burden reduction.
    The UL petition included two papers comparing the IEC 60034-2-1 
test methods with the respective IEEE and CSA standards. The first 
paper was the Angers et. al. study, that concluded that the IEC 60034-
2-1:2014 Method 2-1-1B test method provides results that are very 
closely aligned with the IEEE 112-2004 Test Method B and CSA C390-10 
test methods. (UL, No 29.2 at pp. 1-8) The second paper, written by 
IEEE member Wenping Cao, compared the IEEE 112 and IEC 60034-2-1 
standards. The study evaluated test results from six induction motors 
with ratings between 5.5 and 150 kW (7.5 to 200 hp) and determined that 
the overall power losses found using the two standards is similar. The 
resulting efficiency values were found to be equal or otherwise closely 
aligned, with respective maximum and mean deviations of 0.1 and 0.03 
percentage points. (UL, No. 29.3 at p. 7) UL requested that DOE 
incorporate IEC 60034-2-1:2014 Method 2-1-1B as an alternative to IEEE 
112-2004 Test Method B and CSA C390-10 because of an increased use of 
the IEC 60034-2-1:2014 Method 2-1-1B. (UL, No 29.1 at p.1) In its 
comments, UL did not quantify how broadly the IEC 60034-2-1:2014 Method 
2-1-1B is currently being used.
    Comments in response to the November 2017 notice of petition are 
discussed in sections III.C.2.a through III.C.2.b of this notice of 
proposed rulemaking.
    DOE also received several anonymous comments in response to the 
November 2017 notice of petition. Those comments, however, raised 
topics unrelated to the test procedures at issue and are, consequently, 
not addressed.
a. Method 2-1-1A
    Among multiple testing methods provided in IEC 60034-2-1:2014, 
Method 2-1-1A ``Direct measurement of input and output'' is the 
standard's preferred testing method for single-

[[Page 17013]]

phase motors. It is based on direct measurement of electrical input 
power to the motor and mechanical output power (in the form of torque 
and speed) from the motor. This approach is analogous to the methods of 
the other industry standards, IEEE 114-2010 and CSA C747-09, currently 
incorporated by reference for testing single-phase motors, and IEEE 
112-2004 Test Method A, currently incorporated by reference for the 
purpose of testing polyphase motors of output power less than or equal 
to one horsepower.
    Regarding equivalency among IEC 60034-2-1:2014 Method 2-1-1A, IEEE 
114-2010, and CSA C749-09, Advanced Energy commented that previous 
comparisons finding equivalence between the latter two still held, but 
that Method 2-1-1A had not been formally compared to the others through 
testing. (Advanced Energy, No. 81 at p. 4 that IEC 60034-2-1:2014 
Method 2-1-1A is likely to produce results that are accurate, 
reproducible, and consistent with results from the other test methods 
permitted under subparts X and B of 10 CFR part 431.
    To identify ways to resolve the concern surrounding the torque 
correction procedure in IEC 60034-2-1:2014 Method 2-1-1A, DOE reviewed 
analogous provisions in other industry standards. IEEE 114-2010 \13\ 
and CSA C747-09 \14\ contain more detailed descriptions of torque 
correction procedures, but both state that torque correction is not 
required when torque is measured using either an inline, rotating 
torque transducer or stator reaction torque transducer. The 
insufficient specificity of IEC 60034-2-1:2014 Method 2-1-1A regarding 
dynamometer torque correction can be avoided by using a torque 
measurement method that does not require correction. As a result, DOE 
proposes to incorporate by reference the provisions of IEC 60034-2-
1:2014 Method 2-1-1A as a permitted alternative to IEEE 114-2010 and 
CSA C747-09, but to limit torque measurement to methods which do not 
require dynamometer torque correction. Specifically, DOE proposes to 
limit torque measurement, when using IEC 60034-2-1:2014 Method 2-1-1A, 
to either in-line, shaft-coupled, rotating torque transducers or 
stationary, stator reaction torque transducers, and to reflect these 
changes in 10 CFR 431.444(b)(1) and 431.444(b)(2).
---------------------------------------------------------------------------

    \13\ Section 5.2.1.1.1 of IEEE 114-2010 addressees when torque 
correction is required.
    \14\ Section 6.7.1 of CSA C747-09 addresses when torque 
correction is required.
---------------------------------------------------------------------------

    In addition, the IEC 60034-2-1:2014 2-1-1A test method specifies 
that motors under test should be operated at the ``required load'' 
until thermal equilibrium is achieved. As required under DOE's test 
procedure, the motor must be rated and tested at rated load. For 
clarity and consistency, DOE proposes to modify these instructions by 
replacing the term ``required load'' with ``rated load.''
    DOE tentatively agrees with NEMA and Advanced Energy that IEC 
60034-2-1:2014 Method 2-1-1A is likely to produce accurate and 
reproducible results that are consistent with results from the other 
test methods permitted under subparts X and B of 10 CFR part 431. In 
light of this likely outcome, DOE proposes to incorporate by reference 
IEC 60034-2-1:2014 Method 2-1-1A as an alternative to currently 
incorporated industry testing standards IEEE 112-2004 Test Method A and 
CSA C747-09 in 10 CFR 431.433. This proposal would further harmonize 
DOE's test procedures with current industry practice and reduce 
manufacturer test burden (see section III.F.1 for more details).
    DOE requests comment on its proposal to incorporate by reference 
IEC 60034-2-1:2014 Method 2-1-1A as an alternative to currently 
incorporated industry testing standards IEEE 112-2004 Test Method A and 
CSA C747-09. In particular, DOE requests data comparing the average 
full-load efficiency test results of those standards. DOE requests 
comments on its proposal to limit torque measurement, when using IEC 
60034-2-1:2014 Method 2-1-1A, to either in-line, shaft-coupled, 
rotating torque transducers or stationary, stator reaction torque 
transducers.
b. Method 2-1-1B
    Among multiple testing methods provided in IEC 60034-2-1:2014, 
Method 2-1-1B ``Summation of losses, additional load losses according 
to the method of residual loss'' is the IEC 60034-2-1:2014 standard's 
preferred testing method for three-phase motors. It is based on the 
indirect calculation of motor losses using a combination of measured 
values (e.g., winding resistance) and assumptions so that direct 
measurement of motor torque is not needed. This is analogous to the 
methods of the other industry standards, IEEE 112-2004 and CSA C390-10, 
currently incorporated by reference for testing polyphase motors of 
output power greater than one horsepower.
    In response to the November 2017 notice of petition, NEMA 
encouraged DOE to recognize IEC 60034-2-1:2014 as valid for 
demonstrating compliance with the DOE energy conservation standards. 
(NEMA, No. 80 at p. 1) Advanced Energy commented that, of its analysis 
of 117 motors, 112 were found to have full-load efficiency differences 
of 0.2 or fewer percentage points between their respective 
IEC 60034-2-1:2014-measured and IEEE 112 Test Method B-measured 
efficiency values. (Advanced Energy, No. 81 at p. 2) Advanced Energy 
commented that, although the comparison was performed using IEC 60034-
2-1:2007, the 2014 version is similar enough that results should 
continue to hold.\15\ (Advanced Energy, No. 81 at p. 5) On that basis, 
Advanced Energy considered the loss segregation methods of IEC 60034-2-
1:2014 and IEEE 112-2004 Test Method B to be in close agreement with 
each other. (Advanced Energy, No. 81 at p. 2)
---------------------------------------------------------------------------

    \15\ Advanced Energy's study published in 2011, before the 2014 
version of IEC 60034-2-1 was available, but Advanced Energy expects 
the conclusion to extend to 2014.
---------------------------------------------------------------------------

    Advanced Energy also generally supported the assessments of 
variation between IEC 60034-2-1 and IEEE 112-2004 Test Method B:
     Regarding UL's claim that IEEE 112-2004 Test Method B/IEC 
60034-2-1:2014 Method 2-1-1B alignment is less than 0.1 percentage 
points, Advanced Energy commented that motors of lower rated output 
power, especially, sometimes varied by more. (Advanced Energy, No. 81 
at p. 5)
     Regarding differences in IEEE 112-2004 Test Method B/IEC 
60034-2-1:2014 Method 2-1-1B alignment across motors with respective 
energy conservation standards at Subparts B and X of 10 CFR part 431, 
Advanced Energy commented that the results of its analysis would hold 
for motors of both subparts, but that error may grow as motor output 
power falls. (Advanced Energy, No. 81 at p. 4)
     Regarding a Hydro-Quebec study finding a characteristic 
loss estimation difference of 2 percent of losses between 
IEEE 112-2004 Test Method B and IEC 60034-2-1, Advanced Energy 
commented that this result approximately aligned with its own. 
(Advanced Energy, No. 81 at p. 5)
     Advanced Energy also commented that although the core loss 
estimation method varied somewhat between IEEE 112-2004 Test Method B, 
IEC 60034-2-1:2014, and CSA C390-10, the difference was modest and, 
further, that a 2018 update of IEEE 112 was expected to eliminate it. 
(Advanced Energy, No. 81 at pp. 3-4)
    In addition to the studies submitted by the stakeholders, DOE notes 
that a recent comparison of results from a round robin between 11 
participants

[[Page 17014]]

concluded that the same motor tested at multiple locations showed a 
maximum deviation of 0.4 percentage points, using the same 
IEEE 112-2004 Test Method B for each test.\16\ DOE further notes that 
the largest difference reported by stakeholders between measured 
efficiency values using IEC 60034-2-1:2014 and IEEE 112-2004 Test 
Method B did not exceed 0.2 percentage points. (Advanced 
Energy, No. 81 at p. 2). This difference is comparable to the 
difference in efficiency observed when testing using CSA 390-10 and 
IEEE 112-2004 Test Method B. DOE also determined that given the 
variable nature of tested efficiency values for electric motors and 
small electric motors due to manufacturing and material differences, 
the variation in the calculated efficiency is not likely to result in 
any significant change in overall energy efficiency test results.
---------------------------------------------------------------------------

    \16\ Hydro-Quebec Research Institute, NEMA Motor Round Robin, 
November 2018. Motor Summit 2018 Proceedings. Available at https://www.motorsummit.ch/sites/default/files/2018-11/MS18_proceedings.pdf.
---------------------------------------------------------------------------

    Regarding variance in the core loss calculation between IEEE 112 
Test Method B and IEC 60034-2-1:2014 Method 2-1-1B, the proposed 
incorporation by reference of the updated IEEE 112-2017 test methods is 
expected to resolve this discrepancy and further reduce differences in 
test results between the IEEE 112-2017 Test Method B and IEC 60034-2-
1:2014 Method 2-1-1B. See section III.C.1 for details on this aspect of 
DOE's proposal.
    When amending a test procedure, DOE must determine the extent to 
which a proposed procedure will alter the measured energy efficiency of 
a given type of covered equipment when compared to the current 
procedure. (See 42 U.S.C. 6314(a)(5)(C) (incorporating the procedural 
steps of 42 U.S.C. 6293(e) for electric motors)) In view of the 
comments regarding the comparison among IEEE 112-2004 Test Method B, 
CSA 390-10, and IEC 60034-2-1:2014 Method 2-1-1B, including the results 
of the Hydro Quebec study, the paper written by IEEE member Wenping 
Cao, and the Advanced Energy study, along with the additional 
information gathered by DOE, DOE initially concludes that (1) these 
methods are not identical, but the differences between these standards 
are within the expected measurement variation of the existing test 
procedure; (2) all three tests would result in measurements of 
efficiency that would yield the same results with respect to motor 
compliance; and (3) given the variable nature of tested efficiency 
values for electric motors and small electric motors due to 
manufacturing and material differences, the variation in the calculated 
efficiency is insignificant and not likely to result in any 
manipulation of energy efficiency test results. Therefore, DOE proposes 
to incorporate by reference the relevant provisions of IEC 60034-2-
1:2014 Method 2-1-1B as a permitted alternative to the current test 
methods IEEE 112-2004 Test Method B and CSA C390-10 in 10 CFR 431.15 
and 10 CFR 431.443. Allowing manufacturers to test according to IEC 
60034-2-1:2014 Method 2-1-1B would further harmonize DOE's test 
procedures with current industry practice and reduce manufacturer test 
burden (see section III.F.1 for more details).
    DOE requests comment on its proposal to incorporate by reference 
IEC 60034-2-1:2014 Method 2-1-1B as an alternative to the currently 
incorporated industry testing standards IEEE 112-2004 Test Method B and 
CSA C390-10 and to IEEE 112-2017 Test Method B. In particular, DOE 
requests data comparing test results of those standards.

D. Rated Output Power of Small Electric Motors

1. Background
    The current regulations for small electric motors specify that the 
metric for energy conservation standards, average full-load efficiency, 
is to be measured at ``full rated load.'' 10 CFR 431.442. However, the 
industry testing standards discussed in section III.C do not provide a 
method to determine the rated load of the tested unit. Rather, the 
standards rely on a manufacturer-specified output power, which is 
typically listed on a motor's nameplate. Motors subject to the test 
procedures for small electric motors are capable of operating over a 
continuous range of loads. For example, a motor that is rated at 1 hp 
is also capable of delivering 0.75 hp, but likely with a different 
speed, torque, and efficiency than those of when it is delivering its 
rated load of 1 hp. The output power of the motor depends on the load 
and the design of the motor. Therefore, the load point at which the 
motor must be tested is not an intrinsic parameter to the motor, but 
rather a parameter that must be defined or specified. The test's load 
point is relevant to efficiency testing because the efficiency of small 
electric motors varies according to load.
    To provide for more accurate comparisons of similar motors from 
different manufacturers, DOE considered specifying objective rating 
points. However, DOE recognizes that in some instances it may be more 
appropriate to allow manufacturers to rate and test their equipment at 
a selected load point within an allowable range that reflects a 
manufacturer preference (e.g., a nominal value, increasing the service 
factor, or the load resulting in the highest efficiency) and that more 
appropriately matches the operating conditions likely to be experienced 
by operators of small electric motors.
    In the July 2017 TP RFI, DOE described potential methods of 
determining motor output power based on factors other than manufacturer 
declaration, including deriving motor output power from either 
breakdown torque or service factor load. 82 FR 35468, 35476-77.
    Details of the options considered and the proposed approach are 
discussed in sections III.D.2 and III.D.3 of this document.
2. NEMA Breakdown Torque Method
    DOE investigated whether breakdown torque (a directly measurable 
quantity) corresponds to rated output power, and if it could be used as 
a means for determining rated output power. NEMA MG 1-2016, section 
10.34, specifies that the horsepower rating of a small or medium 
single-phase induction motor is based on breakdown torque. Breakdown 
torque is defined in section 1.50 of NEMA MG 1-2016 as the maximum 
torque which the motor will develop with rated voltage and frequency 
applied without an abrupt drop in speed.\17\ In concept, breakdown 
torque describes the maximum torque the motor can develop without 
slowing down and stalling. The maximum torque over the entire speed 
range could occur at a different condition (e.g., the motor start-up, 
zero speed condition) than the breakdown condition. Therefore, 
breakdown torque corresponds to a local maximum torque (on a plot of 
torque versus speed) that is nearest to the rated torque. The phrase 
``abrupt drop in speed'' corresponds to the expectation that the motor 
will slow down or stall if the load increases and indicates that minor 
reductions in speed observed due to measurement sensitivities are not 
considered.
---------------------------------------------------------------------------

    \17\ NEMA MG 1-2016 does not quantify what would constitute ``an 
abrupt drop in speed.''
---------------------------------------------------------------------------

    The breakdown torque for a specific horsepower rating is specified 
as a range as a function of input frequency and synchronous speed of 
the motor in two tables: Table 10-5 of NEMA MG 1-2016, which applies to 
induction motors, except PSC and shaded-pole motors; and Table 10-6 of 
NEMA MG 1-2016, which applies to shaded-pole and PSC

[[Page 17015]]

motors for fan and pump applications. For polyphase motors, section 
12.37 of NEMA MG 1-2016 specifies that the breakdown torque of a 
general-purpose polyphase squirrel-cage small motor shall not be less 
than 140 percent of the breakdown torque of a single-phase general 
purpose motor of the same horsepower and speed rating. As an example, 
according to Table 10-5 of NEMA MG 1-2016, a 60 hertz (``Hz'') \18\ 
motor rated for 1 hp with a synchronous speed of 1,800 revolutions per 
minute (``RPM'') must have a breakdown torque between 5.16 and 6.8 
pound-feet.
---------------------------------------------------------------------------

    \18\ Hertz is a unit of measure of frequency--or the rate at 
which current cycles. One hertz equals one cycle per second.
---------------------------------------------------------------------------

    Not all small electric motors subject to standards are directly 
addressed by NEMA MG 1-2016. The highest horsepower rating for small 
motors for which breakdown torque is provided in NEMA MG 1-2016 Table 
10-5 is 1 hp for 2-pole motors, 0.75 hp for 4-pole motors, and 0.5 hp 
for 6-pole motors. Table 10-5 provides breakdown torque values for 
motors with horsepower ratings greater than these values, but specifies 
that these ratings correspond to 3-digit frame number series ``medium 
motors'' rather than 2-digit number series ``small motors.'' The energy 
conservation standards for small electric motors at 10 CFR 431.446 
apply only to motors with a two-digit frame number series. However, the 
upper output power bound of energy conservation standards for single-
phase small electric motors is 3 hp for 2- and 4-pole motors, and 1.5 
hp for 6-pole motors. The upper output power bound of energy 
conservation standards for polyphase small electric motors is 3 hp for 
2-pole motors, 2 hp for 4-pole motors, and 1 hp for 6-pole motors.
    DOE investigated the possibility of applying the breakdown torque 
ranges associated with NEMA medium motors in Table 10-5 of NEMA MG 1-
2016 to small electric motors not identified as small motors in NEMA MG 
1-2016.\19\ DOE converted the breakdown torque values in NEMA MG 1-2016 
Table 10-5 to units of oz-ft and plotted the upper limits of the 
breakdown torque range versus horsepower for NEMA small and medium 
motors up to 3 hp for 2-, 4-, and 6-pole motors operating at 60 Hz. DOE 
found that the relationship between breakdown torque and horsepower can 
be expressed as a power law, with continuity across the horsepower 
ratings at the transition point from motors designated by NEMA MG 1-
2016 as ``small'' versus ``medium''. This continuity indicates that the 
breakdown torque to horsepower relationship for motors designated 
``medium'' is no different than those motors designated ``small.'' DOE 
tentatively concludes from this review that the portions of NEMA MG 1-
2016 Table 10-5 corresponding to ``medium'' motors, as that term is 
applied in the context of NEMA MG 1-2016, can be applied to 2-digit 
frame number series small electric motors of the same horsepower, and 
which are subject to DOE's test procedure. Figure III-1 shows breakdown 
torque plotted against horsepower, with power law relationships fitted 
to the data from NEMA MG 1-2016 Table 10-5.
---------------------------------------------------------------------------

    \19\ These include small electric motors with horsepower ratings 
greater than the ratings provided in NEMA MG 1-2016 Table 10-5 for 
NEMA small motors and less than or equal to the upper horsepower 
bound for regulated small electric motors,
[GRAPHIC] [TIFF OMITTED] TP23AP19.023

    In response to the July 2017 TP RFI, NEMA commented that single-
phase small electric motors are typically rated based on breakdown 
torque per NEMA MG 1 limits. (NEMA, No. 25 at p. 11-12) To confirm that 
the breakdown torque method is commonly used by industry, DOE compared 
the values of breakdown torque specified in Table

[[Page 17016]]

10-5 of NEMA MG 1-2016 to values listed in manufacturer catalogs and 
product literature for small electric motors. For most single-phase 
small electric motors, breakdown torque corresponded to the associated 
NEMA range in Table 10-5 of NEMA MG 1-2016.\20\ Similarly, for 
polyphase small electric motors, nearly all models had a manufacturer 
listed breakdown torque which was not less than 140 percent of the 
lower bounds of the NEMA ranges listed in Table 10-5.\21\
---------------------------------------------------------------------------

    \20\ 88% of single-phase small electric motor models collected 
from major manufacturer's catalogs listed values for breakdown 
torque that corresponded to the associated NEMA range.
    \21\ DOE reviewed data from five major manufacturer's catalogs. 
Of the reviewed catalog listings, approximately 98% of polyphase 
small electric motor models listed values for breakdown torque that 
were not less than 140 percent of the associated range in Table 10-5 
of NEMA MG 1.
---------------------------------------------------------------------------

    Also in response to the July 2017 TP RFI, Advanced Energy commented 
that an approach for determining the full load output power of a motor 
based on breakdown torque is possible, but with potentially 
inconsistent results due to the sensitivity of breakdown torque to 
voltage and temperature. Advanced Energy stated that in NEMA MG1-2014, 
the ranges of breakdown torque for single-phase motors are likely 
provided as guidance for the user and not intended to serve as a method 
for determining rated output power. Advanced Energy commented that the 
full load or rated output power of a motor is best declared by the 
manufacturer. (Advanced Energy, No. 25 at p. 13-14)
    Regarding potentially inconsistent results when measuring breakdown 
torque, DOE notes that Section 12.30 of NEMA MG 1-2016 specifies that 
the tests to determine performance characteristics, including breakdown 
torque, shall be made in accordance with IEEE 114 for single-phase 
motors and IEEE 112 for polyphase motors. These methods include 
requirements for instrument calibration and measurement accuracy 
pertaining to voltage and temperature (see sections 4 and 5 of IEEE 114 
and section 4 of IEEE 112). Further, the range of breakdown torque 
values that correspond to a rated horsepower value provides flexibility 
for some variation in test results.
    Based on the ability to apply NEMA MG 1-2016 to all small electric 
motors subject to standards, and evidence that most manufacturers 
already use this method as a standard practice, DOE proposes to use 
breakdown torque to define rated output power. DOE proposes to define 
rated output power as, ``the mechanical output power that corresponds 
to the small electric motor's breakdown torque as specified in NEMA MG 
1-2016 Table 10-5 for single-phase motors or 140 percent of the 
breakdown torque values specified in NEMA MG 1-2016 Table 10-5 for 
polyphase motors. For purposes of this definition, NEMA MG 1-2016 Table 
10-5 can be applied to all small electric motors, regardless of whether 
elements of NEMA MG 1-2016 Table 10-5 are identified as for small or 
medium motors.'' DOE also proposes defining ``breakdown torque'' as 
referring to the maximum torque that the motor will develop with rated 
voltage and frequency applied without an abrupt drop in speed, 
determined in accordance with NEMA MG 1-2016.
    DOE requests comment on the proposed definitions for ``rated output 
power'' and ``breakdown torque.
    DOE requests comment on how to determine when an ``abrupt drop in 
speed'' (e.g., the local maximum of the torque-speed plot closest to 
the rated torque) has occurred when testing the breakdown torque of a 
small electric motor.
3. NEMA Service Factor Load Method
    DOE also researched a method of establishing rated output power 
based on the service factor load of a motor. NEMA MG 1-2016 defines 
service factor in section 1.42 as a multiplier that, when applied to 
the rated output power at full-load, indicates a permissible horsepower 
loading that may be carried under the conditions specified in NEMA MG 
1-2016 section 14.37. While it is possible for a motor to operate at 
the service factor load, there are advantages when the motor operates 
at a load less than the service factor load (e.g., longer motor life 
and greater ability to withstand occasional higher ambient 
temperatures). Nonetheless, DOE explored the potential use of service 
factor load as an intermediate step to determination of rated output 
power.
    Section 14.37 of NEMA MG 1-2016 specifies that when operated at the 
service factor load, small and medium alternating current motors will 
have a temperature rise as specified in section 12.42.1 and 12.43 item 
a.2, respectively.\22\ The temperature rises in these sections are 
specified according to insulation class (i.e., A, B, F, or H).
---------------------------------------------------------------------------

    \22\ DOE notes that NEMA MG 1-2016 section 14.37 contains a typo 
and refers to section 12.44 item a.2 and 12.43.1.
---------------------------------------------------------------------------

    DOE examined sections in NEMA MG 1-2016 relevant to the insulation 
class of a motor, which is a standardized way to describe an electrical 
insulation system. Section 1.65 of NEMA MG 1-2016 defines an insulation 
system as an assembly of insulating materials in association with the 
conductors and the supporting structural parts. An insulation system is 
composed of coil insulation with its accessories, connection and 
winding support insulation, and associated structural parts. Insulation 
systems are designated as one of four insulation classes in section 
1.66 of NEMA MG 1-2016. The insulation classes are designated as A, B, 
F, and H, where each class has an associated maximum temperature rise 
at which the insulation system can safely operate. Section 1.66 of NEMA 
MG 1-2016 describes that these insulation classes are determined 
through experience or an accepted test.\23\
---------------------------------------------------------------------------

    \23\ In NEMA MG 1-2016, ``experience'' means successful 
operation for a ``long time'' under actual operating conditions of 
machines designated with temperature rise at or near the temperature 
rating limit; ``accepted test'' means a test on a system or model 
system which simulates the electrical, thermal, and mechanical 
stresses occurring in service. The test must also be made in 
accordance with IEEE 43, IEEE 117, IEEE 275, and IEEE 304 when 
appropriate for the motor construction.
---------------------------------------------------------------------------

    DOE investigated the motor industry's current use of insulation 
class markings to determine if insulation class is suitable to be used 
as a starting point for determining service factor load. DOE is aware 
that service factor load is related to the temperature rise of a motor, 
according to section 14.37 in NEMA MG 1-2016. Additionally, section 
14.37 references two sections (i.e., sections 12.43 item a.2 and 
12.42.1), which describe temperature rise based on insulation class. 
Insulation class is defined in NEMA MG 1-2016 section 1.66. This 
information indicates that insulation class is fairly well established 
according to industry standards.
    In examining whether insulation class is commonly used by industry 
for equipment within the scope of 10 CFR 431.444, DOE found that MG 1-
2016 includes nameplate markings (sections 10.39 and 10.40) and that 
NEMA requires that small electric motor nameplates include insulation 
class designations. Additionally, DOE reviewed catalog data from 
various manufacturers, and found that catalog data usually include the 
insulation class of the motor. However, neither DOE nor industry 
require including insulation class information in catalog data. In rare 
cases \24\ where catalog data omit the insulation class of the motor, 
the manufacturer knows the insulation class, as it is part of the 
design process for selecting materials for the motor with appropriate 
thermal properties.

[[Page 17017]]

Based on the information in NEMA MG 1-2016 and the prevalence of 
insulation class in manufacturer literature, standard industry practice 
is to rate motors according to NEMA insulation classes. DOE also notes 
that since insulation class information is included with manufacturer 
literature for nearly every motor model, it could be used by DOE in a 
test procedure without any additional testing burden. However, DOE was 
not able to determine whether insulation class and temperature rise, 
even if known, could be reliably used to derive a motor's service 
factor load.
---------------------------------------------------------------------------

    \24\ DOE found that only 0.1% of 5,588 motor models with data 
collected from manufacturer catalogs did not include the insulation 
class of the motor.
---------------------------------------------------------------------------

    In response to the July 2017 TP RFI, NEMA opposed the adoption of a 
method to determine full-load or rated output power of a motor based on 
the load which results in a temperature rise associated with the 
insulation class of the motor. NEMA reasoned that the insulation class 
for some motors is selected based on the potential for operation under 
harsher conditions than continuous duty in a laboratory setting. NEMA 
asserted that this additional design consideration would undermine a 
direct relationship between temperature rise, insulation class, and 
rated output power. NEMA commented that with respect to insulation 
classes, each insulation class is rated for continuous operation at a 
specified temperature limit. While all motors operate within the 
temperature limits of that insulation class, not all motors operate 
continuously at the same temperature. The insulation class for any 
given motor could be selected based on continuous use at an elevated 
temperature. Alternatively, it could be selected to protect motors due 
to spikes in temperature that cannot be controlled but are not the 
typical/normal operating points. (NEMA, No. 24 at p. 11-12)
    Advanced Energy offered that it is possible to establish the output 
power rating of a motor by determining the load (i.e., torque and 
speed) at which the motor will achieve a stable temperature that does 
not exceed the insulation class temperature. However, it added that 
there could be several loads that would meet this criterion, and 
therefore the horsepower determined with this method cannot necessarily 
be considered the correct rating of the motor. Advanced Energy 
commented that the full load or rated output power of a motor is best 
declared by the manufacturer. (Advanced Energy, No. 25 at p. 13-14)
    DOE recognizes that testing at the service factor load may 
characterize a motor's maximum sustainable output, but may not be 
representative of the typical service conditions that a motor 
experiences. DOE also acknowledges that manufacturers may design their 
motors to operate optimally at a ``rated'' load that is less than the 
service factor load. Further, DOE recognizes that manufacturer 
performance information is commonly given at nominal horsepower 
ratings,\25\ which are not always equivalent to the service factor 
load, and that retesting all motors to evaluate performance at the 
service factor load rather than at the current nominal values may be 
burdensome. Finally, DOE does not have sufficient data to assess the 
potential impact on reproducibility given that multiple load points 
(i.e., torque and speed) may generate the same temperature rise, but 
the different load points may have different measured efficiencies. As 
a result, DOE is not proposing to require determination of rated output 
power on the basis of service factor load.
---------------------------------------------------------------------------

    \25\ Nominal horsepower ratings refer to horsepower ratings 
commonly used by manufacturers, and ratings for which NEMA provides 
specifications for (e.g., 0.5, 0.75, 1, and 1.5 hp).
---------------------------------------------------------------------------

E. Rated Values Specified for Testing Small Electric Motors

    DOE is also proposing to clarify several values used for testing 
small electric motors. DOE notes that the definition of average full-
load efficiency at 10 CFR 431.442 specifies that it is determined when 
the motor operates at the rated frequency, rated load, and rated 
voltage. Additionally, industry standards refer to ``rated'' values 
which are expected to be known or provided (e.g., on the nameplate). 
However, ``rated frequency,'' ``rated load,'' and ``rated voltage'' are 
not defined. To resolve any ambiguity, DOE is proposing to include 
additional instruction on how to derive each of these values to allow 
for more accurate comparisons between motors, and better ensure 
reproducible testing for all equipment.
1. Rated Frequency
    Rated frequency is a term commonly used by industry standards 
developed for testing small electric motors (e.g., section 6.1 in IEEE 
112-2004, and section 3 in IEEE 114-2010). The test procedures and 
energy conservation standards established under EPCA apply to motors 
distributed in commerce within the United States. Within the United 
States, electricity is supplied at 60 Hz. However, small electric 
motors could be designed to operate at frequencies in addition to 60 Hz 
(e.g., motors designed to operate at either 60 or 50 Hz).
    Small electric motors subject to 10 CFR 431.444 could potentially 
be marketed as capable of operating at two different frequencies and 
could have data provided for both (e.g., 60 and 50 Hz). In this case, 
it could be unclear at which frequency the test should be performed. 
Therefore, DOE proposes, through the proposed referenced test methods, 
that all tests be performed using a rated frequency of 60 Hz. DOE 
proposes 60 Hz so that the tested input frequency matches the frequency 
experienced by the motor when installed in the field. To implement this 
proposal, DOE proposes to modify 10 CFR 431.442 to define the term 
``rated frequency'' as ``60 hertz.''
2. Rated Load
    Rated load \26\ is used in industry standards to specify a loading 
point for motor testing (e.g., sections 5.6 and 6.1 in IEEE 112-2004, 
and section 8.2.1 in IEEE 114-2010). Typically, a rated load represents 
a power output expected from the motor (e.g., a horsepower value on the 
nameplate). The rated load will have a corresponding rated speed and 
rated torque. DOE proposes to modify 10 CFR 431.442 to define the term 
``rated load'' as ``the rated output power of a small electric motor'' 
(See section III.D.2 for definition of rated output power). DOE 
proposes that the rated output power (given on the motor nameplate) be 
used for any reference to rated load, full rated load, rated full-load, 
or full-load in an industry standard used for testing small electric 
motors.
---------------------------------------------------------------------------

    \26\ Also referred to as full rated load, rated full-load, or 
full-load.
---------------------------------------------------------------------------

3. Rated Voltage
    Rated voltage is used in industry standards to specify the voltage 
supplied to the motor under test (e.g., section 6.1 in IEEE 112-2004, 
and section 3 in IEEE 114-2010). DOE is proposing to clarify the 
permissible test voltage options when small electric motors are rated 
for use at multiple voltages (e.g., 230 and 460 volts) by defining the 
term ``rated voltage'' at 10 CFR 431.442.
    NEMA, Baldor, UL, ASAP, ACEEE, NEEA, and CA IOUs commented on this 
issue in response to a prior proposal related to certain certification, 
compliance, labeling, and enforcement issues involving electric and 
small electric motors. NEMA commented that with respect to single-phase 
capacitor run motors, DOE currently allows the manufacturer to select 
the voltage for compliance. NEMA also indicated that the input voltage 
setting can affect efficiency, noting that if DOE were to require 
motors to comply at the lowest

[[Page 17018]]

level of efficiency, manufacturers would be forced to redesign these 
motors, since at least some motors would be out of compliance at 
voltages not currently selected for certification. These redesign 
efforts would result in larger motors to accommodate the additional 
active material required to create a compliant motor and could result 
in the use of larger frame sizes, which would create utility problems 
for end users of the motors. (NEMA, EERE-2014-BT-CE-0019, No. 10 at p. 
10) With respect to the input voltage setting for testing and 
representations, Baldor agreed with NEMA's comments. (Baldor, EERE-
2014-BT-CE-0019, No. 11 at p. 6) UL and Advanced Energy also commented 
that the input voltage setting can affect efficiency and that DOE 
should either allow the manufacturer to select the input voltage for 
testing or require testing at all nameplate voltages. (UL, EERE-2014-
BT-CE-0019, No. 9 at p. 8-9; Advanced Energy, EERE-2014-BT-CE-0019, No. 
8 at p. 11) UL also commented that, should testing be required at all 
nameplate voltages, 208 volts should be excluded because it is 
typically listed as a ``usable'' voltage rather than a voltage for 
which the motor was designed and optimized. (UL, EERE-2014-BT-CE-0019, 
No. 9 at p. 9) ASAP, ACEEE, and NEEA, in a joint comment, indicated 
that clarification on the voltage used during the test would address 
ambiguity and ensure consistency. (ASAP, ACEEE, NEEA, EERE-2014-BT-CE-
0019, No. 16 at p. 3) The CA IOUs also supported specifying a voltage 
for testing, reasoning that this would ensure consumers are unlikely to 
purchase a unit less efficient than advertised. (CA IOUs, EERE-2014-BT-
CE-0019, No. 13 at p. 4)
    In the March 2010 ECS final rule, DOE indicated the industry test 
procedures incorporated into DOE's regulations permit manufacturers to 
select the input voltage for testing. 75 FR 10874, 10892 (``DOE 
understands that it is at the manufacturer's discretion under which 
single voltage condition to test its motor.''). After considering the 
regulatory history on this topic and the market data supporting the 
notion that efficiency can vary with the input voltage setting, DOE 
proposes to continue to allow small electric motors to be tested at any 
nameplate voltage value and to specify this flexibility by defining the 
term ``rated voltage'' at 10 CFR 431.442 as referring to the input 
voltage of a small electric motor selected by the motor's manufacturer 
to be used for testing the motor's efficiency. In DOE's view, this 
change will help ensure consistency and clarity during testing and when 
making representations of the performance characteristics of a given 
motor (i.e., on a motor nameplate or product catalog).
    DOE requests comment on the proposed definitions, and procedures 
for determining the values of rated frequency and rated load for small 
electric motors

F. Test Procedure Costs, Harmonization, and Other Topics

1. Test Procedure Costs and Impact
    EPCA requires that test procedures prescribed by DOE not be unduly 
burdensome to conduct. 42 U.S.C. 6314(a)(2). DOE proposes to amend (1) 
the existing test procedure for small electric motors (by clarifying 
the existing scope and testing instructions, adding an authorized 
procedure incorporated by reference from IEEE 112-2017, and permitting 
the use of IEC 60034-2-1:2014) and (2) the existing test procedure for 
electric motors (by proposing to permit the use of IEC 60034-2-1:2014). 
DOE has tentatively determined that testing under these proposed 
amendments would not be unduly burdensome for manufacturers to conduct 
and that these proposed amendments would reduce test burden for 
manufacturers.
    DOE's analyses of this proposal indicate that, if finalized, the 
proposal would result in a net cost savings to manufacturers.

   Table III-4--Summary of Cost Impacts for Small Electric Motors and
                             Electric Motors
------------------------------------------------------------------------
                                           Present value
                Category                     (million      Discount rate
                                              2016$)         (percent)
------------------------------------------------------------------------
Cost savings:
    Reduction in Future Testing Costs                0.3               3
     for Small Electric Motors..........             0.1               7
    Reduction in Future Testing Costs                4.0               3
     for Electric Motors................             1.6               7
Total Net Cost Impact:
                                         -------------------------------
        Total Net Cost Impact...........           (4.2)               3
                                                   (1.7)               7
------------------------------------------------------------------------


   Table III-5--Summary of Annualized Cost Impacts for Small Electric
                       Motors and Electric Motors
------------------------------------------------------------------------
                                            Annualized
                                               value       Discount rate
                Category                     (thousand       (percent)
                                              2016$)
------------------------------------------------------------------------
Annualized Cost Savings:
    Reduction in Future Testing Costs                  8               3
     for Small Electric Motors..........               7               7
    Reduction in Future Testing Costs                119               3
     for Electric Motors................             111               7
Total Net Annualized Cost Impact:
                                         -------------------------------
        Total Net Cost Impact...........           (127)               3
                                                   (118)               7
------------------------------------------------------------------------


[[Page 17019]]

    Further discussion of the analyses of the cost impact of the 
proposed test procedure amendments is presented in the following 
paragraphs.
(a) Cost Impacts for Small Electric Motors
    Regarding small electric motors, the proposed clarifications of the 
existing scope and test instructions would not impose any new 
requirements on manufacturers of regulated small electric motors. 
Instead, DOE's proposal, if adopted, would provide manufacturers with 
greater certainty in the conduct of the test procedures, offer 
additional testing options, and would not increase test burden. The 
proposed addition of IEEE 112-2017 is not expected to increase test 
burden or require new testing. Manufacturers would be able to rely on 
data generated under the current test procedure, should the proposed 
amendments for small electric motors be adopted, because the proposal 
would retain the existing test method options at 10 CFR 431.444, and 
none of the proposed changes would result in a change in measured 
efficiency under the existing test method options. Additionally, the 
proposed incorporation of IEC 60034-2-1:2014 would further harmonize 
DOE's test procedures with current industry practice and international 
standards by providing manufacturers with an additional testing option. 
This change would enable manufacturers who use IEC 60034-2-1:2014 for 
everyday business purposes (for international markets) or to comply 
with regulatory requirements in other countries to significantly reduce 
the number of tests that they must perform by removing the need to 
conduct a test according to the CSA or IEEE methods \27\ currently 
referenced in DOE's test procedure for small electric motors. As 
described in section III.C.2, NEMA and UL petitioned that certain 
portions of IEC test procedure 60034-2-1:2014 be adopted as a permitted 
alternative test method for small electric motors and electric motors. 
UL further noted in its petition the increasing use of the IEC test 
procedure 60034-2-1:2014 by the industry worldwide.
---------------------------------------------------------------------------

    \27\ CSA 747-09, CSA 390-10, IEEE 112-2004, or IEEE 114-2010 
depending on the category of small electric motor.
---------------------------------------------------------------------------

    Recognizing that some, but not all, manufacturers already test 
their motors using IEC 60034-2-1:2014, DOE assumed that 10 percent \28\ 
of small electric motor models sold in the U.S. that are tested with 
either the CSA or IEEE methods referenced in the Federal test procedure 
are also tested with the IEC 60034-2-1 method. The savings calculated 
in this notice could be higher if a larger fraction of U.S.-market 
motor models are currently already tested to IEC 60034-2-1 (i.e., 
greater than 10 percent).
---------------------------------------------------------------------------

    \28\ NEMA and UL did not provide quantitative information 
regarding the number of small electric motors that are tested with 
either the CSA method or the IEEE method, and the IEC method, 
although NEMA commented that this is an increasing trend. Based on a 
review of the market, only some motors appear suitable for sale in 
both the U.S. and foreign markets. A small fraction of motors are 
designed for operation on 50 Hz and 60 Hz power, or use NEMA and IEC 
units of measure (hp vs. kW) and other designators. The U.S. 
electrical grid is operated at 60 Hz, while many other countries and 
regions (e.g., Europe) operate at 50 Hz.
---------------------------------------------------------------------------

    To calculate the testing cost reduction associated with allowing 
the IEC 60034-2-1:2014 method for testing small electric motors, DOE 
estimated the number of motor models that would be tested each year for 
compliance. First, DOE reviewed the product catalogs of four major 
small electric motor manufacturers published over a seven-year period 
between 2009 and 2016. DOE compared the current product offerings to 
the historical catalogs to identify the total number of new models 
listed over that period of time. DOE then annualized that total number 
of new models. Next, DOE scaled up that annualized value based on the 
estimated market share of the manufacturers whose catalogs were 
reviewed. This scaled-up annualized value estimated the total number of 
new models listed for sale each year for the entire U.S. market. Then, 
DOE estimated that only 10 percent of new models would be tested each 
year. DOE made this estimate based on (1) knowledge that many motor 
models are grouped under a single basic model classification (and 
therefore each individual model would not need to be tested), (2) 
observations that only a fraction of electric motor basic models are 
tested (the remainder have efficiency determined through an alternative 
efficiency determination method [``AEDM'']), and (3) recognition that 
many motor models may have been relabeled or rebranded but not 
redesigned (and therefore no new testing is needed). Based on these 
calculations, DOE tentatively determined that approximately 1 new small 
electric motor basic model per year would not require testing according 
to the existing test methods and therefore would realize costs savings 
due to the proposed test procedure.
    DOE estimated the cost of testing a single small electric motor 
unit to be $2,000 at a third-party facility and approximately $500 at 
an in-house facility.\29\ DOE requires at least five units to be tested 
per basic model. 10 CFR 431.455(c)(2) To estimate in-house testing 
costs, DOE assumed testing a single motor unit requires approximately 
nine hours of a mechanical engineer technician time and three hours 
from a mechanical engineer. The mean hourly wage for a mechanical 
engineer technician is $27.97 and the total hourly compensation paid by 
the employer (including all fringe benefits) is $36.21. The mean hourly 
wage for a mechanical engineer is $43.99 and the total hourly 
compensation paid by the employer (including all fringe benefits) is 
$56.95.\30\ In addition, DOE assumed that 50 percent of tests are 
conducted at third-party facilities and 50 percent of tests are 
conducted at in-house facilities. Based on these estimates, DOE 
anticipates annual cost savings of approximately $8,000 for the small 
electric motors industry.
---------------------------------------------------------------------------

    \29\ Estimate based on standard rates charged by third party 
laboratories.
    \30\ Bureau of Labor Statistics, Occupational Employment and 
Wages, 17-3027 Mechanical Engineer Technician; 17-2141 Mechanical 
Engineer, May 2017. Last accessed January 30, 2019, United States 
Census Bureau, Annual Survey of Manufacturers, 2016 for NAICS Code 
335312 ``Motor and Generator Manufacturing''. Last accessed January 
30, 2019.
---------------------------------------------------------------------------

(b) Cost Impacts for Electric Motors
    Regarding electric motors, DOE is not proposing to amend the scope 
of applicability of the test procedure at Appendix B. Consistent with 
the small electric motors analysis, the proposed incorporation of IEC 
60034-2-1:2014 in this test procedure would provide manufacturers 
additional flexibility by permitting an alternative test procedure for 
measuring energy loss and would further harmonize DOE's test procedures 
with current industry practice and international standards. DOE expects 
that, for those manufacturers who are already using IEC 60034-2-1:2014, 
this proposed change would reduce the number of tests that 
manufacturers perform by avoiding the need to conduct a test according 
to the CSA or IEEE methods \31\ currently referenced in DOE's test 
procedure.
---------------------------------------------------------------------------

    \31\ CSA 390-10 or IEEE 112-2004 depending on the category of 
electric motor.
---------------------------------------------------------------------------

    To calculate the testing cost reduction associated with allowing 
the IEC 60034-2-1:2014 method for testing electric motors, DOE employed 
a similar methodology to the small electric motors analysis and 
estimated the number of electric motor models that would be tested each 
year for compliance. First, DOE reviewed the

[[Page 17020]]

product catalogs of four major electric motor manufacturers published 
over a six-year period between 2010 and 2016. DOE compared the current 
product offerings to the historical catalogs to identify the total 
number of new models listed over that period of time. DOE then 
annualized that total number of new models. Next, DOE scaled up that 
annualized value based on the estimated market share of the 
manufacturers whose catalogs were reviewed. This scaled-up annualized 
value estimated the total number of new models listed for sale each 
year for the entire U.S. market. Then, DOE estimated that only 10 
percent of new models would be tested each year. DOE made this estimate 
based on (1) knowledge that many motor models are grouped under a 
single basic model classification (and therefore each individual model 
would not need to be tested), (2) observations that only a fraction of 
electric motor basic models are tested (the remainder have efficiency 
determined through an AEDM), and (3) recognition that many motor models 
that may have been relabeled or rebranded but not redesigned (and 
therefore no new testing is needed). Similar to what was done for small 
electric motors, DOE assumed that 10 percent of electric motor models 
sold in the U.S. that are tested with either the CSA or IEEE methods 
referenced in the Federal test procedure are also tested with the IEC 
60034-2-1 method. The savings calculated in this notice could be higher 
if a larger fraction of U.S.-market motor models are currently already 
tested to IEC 60034-2-1. Based on these calculations, DOE tentatively 
determined that approximately 20 new electric motor basic models per 
year would not require testing according to the existing test methods 
and therefore would realize costs savings due to the proposed test 
procedure.
    DOE estimated the cost of testing a single electric motor unit to 
be $2,000 at a third-party facility and approximately $500 at an in-
house facility. DOE requires at least five units to be tested per basic 
model. 10 CFR 431.17(b)(2) In addition, based on DOE's understanding 
that this equipment is tested both in-house and at third-party testing 
labs, DOE assumed an even split in testing between the two venues. 
Based on these estimates, DOE anticipates annual industry cost savings 
of approximately $127,000 for electric motors that are currently 
subject to the standards at 10 CFR 431.25.
    DOE seeks input on the testing cost impacts and manufacturer burden 
associated with the test procedure amendments described in this 
document. DOE also seeks comment and any additional data relevant to 
its assumptions in calculating these impacts
2. Harmonization With Industry Standards
    DOE's current test procedures for electric and small electric 
motors are based on the industry standards that have been incorporated 
by reference. The current test procedures for small electric motors at 
10 CFR 431.444 incorporate by reference certain provisions of IEEE 114-
2010, IEEE 112-2004, CSA C747-09, CSA C390-10, all of which contain 
methods for measuring the energy efficiency of small electric motors. 
The current test procedures for electric motors in Appendix B 
incorporate by reference certain provisions of IEEE 112-2004 and CSA 
C390-10. DOE proposes to also allow the use of IEEE 112-2017, to 
further harmonize IEEE 112 Test Method B with the other permitted 
industry test methods. This NOPR also proposes to incorporate by 
reference certain provisions of the IEC test procedure 60034-2-1:2014 
for measuring the performance of small electric motors and electric 
motors.
    DOE requests comment on the benefits and burdens of adopting any 
industry/voluntary consensus-based or other appropriate test procedure, 
without modification
3. Other Test Procedure Topics
    In addition to the issues identified earlier in this document, DOE 
welcomes comment on any other aspect of the existing test procedure for 
small electric motors and electric motors. DOE particularly seeks 
information that would ensure that the test procedure measures energy 
efficiency during a representative average use cycle or period of use, 
as well as information that would help DOE create a procedure that 
would limit manufacturer test burden. Comments regarding repeatability 
and reproducibility are also welcome.
    DOE also requests information that would help it create procedures 
that would limit manufacturer test burden through streamlining or 
simplifying testing requirements without impacting testing accuracy. In 
particular, DOE notes that under Executive Order 13771, ``Reducing 
Regulation and Controlling Regulatory Costs,'' Executive Branch 
agencies such as DOE must manage the costs associated with the 
imposition of expenditures required to comply with Federal regulations. 
See 82 FR 9339 (February 3, 2017). Consistent with that Executive 
Order, DOE encourages the public to provide input on measures DOE could 
take to lower the cost of its regulations applicable to small electric 
motors consistent with the requirements of EPCA.

G. Compliance Date

    EPCA prescribes that all representations made in writing or 
broadcast advertisements of energy efficiency and energy use, including 
those made on marketing materials and product labels, must be made in 
accordance with an amended test procedure, beginning 180 days after 
publication of such a test procedure final rule in the Federal 
Register. (See 42 U.S.C. 6314(d)(1)) If DOE were to publish an amended 
test procedure, EPCA allows individual manufacturers to petition DOE 
for an extension of the 180-day period if the manufacturer may 
experience undue hardship in meeting the deadline. (42 U.S.C. 
6314(d)(2)) To receive such an extension, petitions must be filed with 
DOE no later than 60 days before the end of the 180-day period and must 
detail how the manufacturer will experience undue hardship. (Id.) By 
statute, any extension granted by DOE under this provision may not 
exceed 180 days in duration. (Id.)

IV. Procedural Issues and Regulatory Review

A. Review Under Executive Order 12866

    The Office of Management and Budget (OMB) has determined that this 
test procedure rulemaking is not a ``significant regulatory action'' 
under section 3(f) of Executive Order 12866, Regulatory Planning and 
Review, 58 FR 51735 (October 4, 1993). Accordingly, this action was not 
subject to review under the Executive Order by the Office of 
Information and Regulatory Affairs (OIRA) in the OMB.

B. Review Under Executive Orders 13771 and 13777

    On January 30, 2017, the President issued Executive Order 
(``E.O.'') 13771, ``Reducing Regulation and Controlling Regulatory 
Costs.'' E.O. 13771 stated the policy of the executive branch is to be 
prudent and financially responsible in the expenditure of funds, from 
both public and private sources. E.O. 13771 stated it is essential to 
manage the costs associated with the governmental imposition of private 
expenditures required to comply with Federal regulations.
    Additionally, on February 24, 2017, the President issued E.O. 
13777, ``Enforcing the Regulatory Reform Agenda.'' E.O. 13777 required 
the head

[[Page 17021]]

of each agency designate an agency official as its Regulatory Reform 
Officer (``RRO''). Each RRO oversees the implementation of regulatory 
reform initiatives and policies to ensure that agencies effectively 
carry out regulatory reforms, consistent with applicable law. Further, 
E.O. 13777 requires the establishment of a regulatory task force at 
each agency. The regulatory task force is required to make 
recommendations to the agency head regarding the repeal, replacement, 
or modification of existing regulations, consistent with applicable 
law. At a minimum, each regulatory reform task force must attempt to 
identify regulations that:
    (i) Eliminate jobs, or inhibit job creation;
    (ii) Are outdated, unnecessary, or ineffective;
    (iii) Impose costs that exceed benefits;
    (iv) Create a serious inconsistency or otherwise interfere with 
regulatory reform initiatives and policies;
    (v) Are inconsistent with the requirements of Information Quality 
Act, or the guidance issued pursuant to that Act, in particular those 
regulations that rely in whole or in part on data, information, or 
methods that are not publicly available or that are insufficiently 
transparent to meet the standard for reproducibility; or
    (vi) Derive from or implement Executive Orders or other 
Presidential directives that have been subsequently rescinded or 
substantially modified.
    DOE initially concludes that this rulemaking is consistent with the 
directives set forth in these executive orders. This proposed rule is 
estimated to result in cost savings. This proposed rule would yield 
annualized cost savings of approximately $118,000 (2016$) using a 
perpetual time horizon discounted to 2016 at a 7 percent discount rate. 
Therefore, if finalized as proposed, this rule is expected to be an 
E.O. 13771 deregulatory action.

C. Review Under the Regulatory Flexibility Act

    The Regulatory Flexibility Act (5 U.S.C. 601 et seq.) requires 
preparation of an initial regulatory flexibility analysis (``IRFA'') 
for any rule that by law must be proposed for public comment, unless 
the agency certifies that the rule, if promulgated, will not have a 
significant economic impact on a substantial number of small entities. 
As required by Executive Order 13272, ``Proper Consideration of Small 
Entities in Agency Rulemaking,'' 67 FR 53461 (August 16, 2002), DOE 
published procedures and policies on February 19, 2003, to ensure that 
the potential impacts of its rules on small entities are properly 
considered during the DOE rulemaking process. 68 FR 7990. DOE has made 
its procedures and policies available on the Office of the General 
Counsel's website at http://energy.gov/gc/office-general-counsel.
    DOE reviewed the test procedures considered in this proposed rule 
to amend the test procedure for small electric motors and electric 
motors under the provisions of the Regulatory Flexibility Act and the 
procedures and policies published on February 19, 2003.
    The Small Business Administration (``SBA'') considers a business 
entity to be a small business, if, together with its affiliates, it 
employs less than a threshold number of workers specified in 13 CFR 
part 121. The size standards and codes are established by the 2017 
North American Industry Classification System (``NAICS'').
    Small electric motor and electric motor manufacturers are 
classified under NAICS code 335312, motor and generator manufacturing. 
The SBA sets a threshold of 1,250 employees or fewer for an entity to 
be considered as a small business. DOE conducted a focused inquiry into 
small business manufacturers of equipment covered by this rulemaking. 
DOE used available public information to identify potential small 
manufacturers. DOE accessed the membership directories of NEMA and The 
Motor Control and Motor Association (MCMA) to create a list of 
companies that import or otherwise manufacture small electric motors 
and electric motors covered by this rulemaking. Using these sources, 
DOE identified a total of 56 distinct manufacturers of small electric 
motors and electric motors.
    DOE then reviewed the data to determine whether the entities met 
the SBA's definition of ``small business'' as it relates to NAICS code 
335312 and to screen out companies that do not offer equipment covered 
by this rulemaking, do not meet the definition of a ``small business,'' 
or are foreign owned and operated. Based on this review, DOE has 
identified 21 manufacturers that are potential small businesses. 
Through this analysis, DOE has determined the expected effects of the 
rule on these covered small businesses.
    In response to the July 2017 TP RFI, NEMA provided input on the 
costs and time required for testing motors of different configurations. 
NEMA indicated that testing a motor can take as little as 8 hours and 
as long as 32 hours, depending on the size of the motor. NEMA noted 
that the teardown process also takes several hours. (NEMA, No. 24 at 
pp. 10-11) Advanced Energy commented that a properly conducted test 
could take a full working day for a large motor, excluding setup, or a 
minimum of half a day for a small motor. (Advanced Energy, No. 25 at p. 
13) Advanced Energy commented that relative to the motors already 
subject to energy conservation standards and test procedure, no 
significant burden is expected in testing the motors categories 
identified by DOE in the July 2017 TP RFI. (Advanced Energy, No. 25 at 
p. 3) Advanced Energy noted one exception in the case of fractional 
horsepower motors. 82 FR 35468, 35471. Advanced Energy believes that 
the cost of testing these motors may far exceed the cost of the motors, 
themselves. (Advanced Energy, No. 25 at p. 3)
    This proposal would neither expand the scope of test procedure 
applicability to small electric motors beyond those currently subject 
to test procedures, nor would it place additional requirements on those 
small electric motors currently subject to DOE's test procedures. 
Furthermore, this proposal would not place any additional requirements 
on those electric motors that are already subject to DOE's test 
procedures, nor would it require manufacturers to retest existing 
electric motors. Accordingly, manufacturers would not be required under 
this proposal to retest any existing small electric motors or electric 
motors already subject to DOE's test procedures.
    This proposal, if adopted, would also not increase testing costs 
nor would it impose any additional testing burden on manufacturers. 
Therefore, DOE concludes that the impacts of this proposal would not 
have a ``significant economic impact on a substantial number of small 
entities,'' and the preparation of an IRFA is not warranted. DOE will 
transmit the certification and supporting statement of factual basis to 
the Chief Counsel for Advocacy of the Small Business Administration for 
review under 5 U.S.C. 605(b).
    DOE seeks comments on whether the proposed test procedure would 
place new and significant burdens on a substantial number of small 
entities

D. Review Under the Paperwork Reduction Act of 1995

    Manufacturers of electric motors must certify to DOE that their 
equipment comply with any applicable energy conservation standards. To 
certify compliance, manufacturers must first obtain test data for their 
equipment according to the DOE test procedures, including any 
amendments adopted for those test procedures. DOE has established 
regulations for the certification and recordkeeping

[[Page 17022]]

requirements for covered consumer products and commercial equipment, 
including electric motors. (See subpart B of 10 CFR part 431) The 
collection-of-information requirement for the certification and 
recordkeeping is subject to review and approval by OMB under the 
Paperwork Reduction Act (PRA). This requirement has been approved by 
OMB under OMB control number 1910-1400. Public reporting burden for the 
certification is estimated to average 35 hours per response, including 
the time for reviewing instructions, searching existing data sources, 
gathering and maintaining the data needed, and completing and reviewing 
the collection of information.
    Notwithstanding any other provision of the law, no person is 
required to respond to, nor shall any person be subject to a penalty 
for failure to comply with, a collection of information subject to the 
requirements of the PRA, unless that collection of information displays 
a currently valid OMB Control Number.

E. Review Under the Treasury and General Government Appropriations Act, 
1999

    Section 654 of the Treasury and General Government Appropriations 
Act, 1999 (Pub. L. 105-277) requires Federal agencies to issue a Family 
Policymaking Assessment for any rule that may affect family well-being. 
This proposed rule, if adopted, would not have any impact on the 
autonomy or integrity of the family as an institution. Accordingly, DOE 
has concluded that it is not necessary to prepare a Family Policymaking 
Assessment.

F. Review Under the National Environmental Policy Act of 1969

    DOE is analyzing this proposed regulation in accordance with the 
National Environmental Policy Act (NEPA) and DOE's NEPA implementing 
regulations (10 CFR part 1021). DOE's regulations include a categorical 
exclusion for rulemakings interpreting or amending an existing rule or 
regulation that does not change the environmental effect of the rule or 
regulation being amended. 10 CFR part 1021, subpart D, Appendix A5. DOE 
anticipates that this rulemaking qualifies for categorical exclusion A5 
because it is an interpretive rulemaking that does not change the 
environmental effect of the rule and otherwise meets the requirements 
for application of a categorical exclusion. See 10 CFR 1021.410. DOE 
will complete its NEPA review before issuing the final rule.

G. Review Under Executive Order 13132

    Executive Order 13132, ``Federalism,'' 64 FR 43255 (August 4, 1999) 
imposes certain requirements on agencies formulating and implementing 
policies or regulations that preempt State law or that have Federalism 
implications. The Executive Order requires agencies to examine the 
constitutional and statutory authority supporting any action that would 
limit the policymaking discretion of the States and to carefully assess 
the necessity for such actions. The Executive Order also requires 
agencies to have an accountable process to ensure meaningful and timely 
input by State and local officials in the development of regulatory 
policies that have Federalism implications. On March 14, 2000, DOE 
published a statement of policy describing the intergovernmental 
consultation process it will follow in the development of such 
regulations. 65 FR 13735. DOE has examined this proposed rule and has 
determined that it would not have a substantial direct effect on the 
States, on the relationship between the national government and the 
States, or on the distribution of power and responsibilities among the 
various levels of government. EPCA governs and prescribes Federal 
preemption of State regulations as to energy conservation for the 
products that are the subject of this proposed rule. States can 
petition DOE for exemption from such preemption to the extent, and 
based on criteria, set forth in EPCA. (42 U.S.C. 6316(a); 42 U.S.C. 
6297(d)) No further action is required by Executive Order 13132.

H. Review Under Executive Order 12988

    Regarding the review of existing regulations and the promulgation 
of new regulations, section 3(a) of Executive Order 12988, ``Civil 
Justice Reform,'' 61 FR 4729 (February 7, 1996), imposes on Federal 
agencies the general duty to adhere to the following requirements: (1) 
Eliminate drafting errors and ambiguity, (2) write regulations to 
minimize litigation, (3) provide a clear legal standard for affected 
conduct rather than a general standard, and (4) promote simplification 
and burden reduction. Section 3(b) of Executive Order 12988 
specifically requires that Executive agencies make every reasonable 
effort to ensure that the regulation (1) clearly specifies the 
preemptive effect, if any, (2) clearly specifies any effect on existing 
Federal law or regulation, (3) provides a clear legal standard for 
affected conduct while promoting simplification and burden reduction, 
(4) specifies the retroactive effect, if any, (5) adequately defines 
key terms, and (6) addresses other important issues affecting clarity 
and general draftsmanship under any guidelines issued by the Attorney 
General. Section 3(c) of Executive Order 12988 requires Executive 
agencies to review regulations in light of applicable standards in 
sections 3(a) and 3(b) to determine whether they are met or it is 
unreasonable to meet one or more of them. DOE has completed the 
required review and determined that, to the extent permitted by law, 
this proposed rule meets the relevant standards of Executive Order 
12988.

I. Review Under the Unfunded Mandates Reform Act of 1995

    Title II of the Unfunded Mandates Reform Act of 1995 (``UMRA'') 
requires each Federal agency to assess the effects of Federal 
regulatory actions on State, local, and Tribal governments and the 
private sector. Public Law 104-4, sec. 201 (codified at 2 U.S.C. 1531). 
For a proposed regulatory action likely to result in a rule that may 
cause the expenditure by State, local, and Tribal governments, in the 
aggregate, or by the private sector of $100 million or more in any one 
year (adjusted annually for inflation), section 202 of UMRA requires a 
Federal agency to publish a written statement that estimates the 
resulting costs, benefits, and other effects on the national economy. 
(2 U.S.C. 1532(a), (b)) The UMRA also requires a Federal agency to 
develop an effective process to permit timely input by elected officers 
of State, local, and Tribal governments on a proposed ``significant 
intergovernmental mandate,'' and requires an agency plan for giving 
notice and opportunity for timely input to potentially affected small 
governments before establishing any requirements that might 
significantly or uniquely affect small governments. On March 18, 1997, 
DOE published a statement of policy on its process for 
intergovernmental consultation under UMRA. 62 FR 12820; also available 
at http://energy.gov/gc/office-general-counsel. DOE examined this 
proposed rule according to UMRA and its statement of policy and 
determined that the proposal contains neither an intergovernmental 
mandate, nor a mandate that may result in the expenditure of $100 
million or more in any year, so these requirements do not apply.

J. Review Under Executive Order 12630

    DOE has determined, under Executive Order 12630, ``Governmental 
Actions and Interference with Constitutionally Protected Property 
Rights'' 53 FR 8859 (March 18, 1988), that this proposed

[[Page 17023]]

regulation would not result in any takings that might require 
compensation under the Fifth Amendment to the U.S. Constitution.

K. Review Under Treasury and General Government Appropriations Act, 
2001

    Section 515 of the Treasury and General Government Appropriations 
Act, 2001 (44 U.S.C. 3516 note) provides for agencies to review most 
disseminations of information to the public under guidelines 
established by each agency pursuant to general guidelines issued by 
OMB. OMB's guidelines were published at 67 FR 8452 (February 22, 2002), 
and DOE's guidelines were published at 67 FR 62446 (October 7, 2002). 
DOE has reviewed this proposed rule under the OMB and DOE guidelines 
and has concluded that it is consistent with applicable policies in 
those guidelines.

L. Review Under Executive Order 13211

    Executive Order 13211, ``Actions Concerning Regulations That 
Significantly Affect Energy Supply, Distribution, or Use,'' 66 FR 28355 
(May 22, 2001), requires Federal agencies to prepare and submit to OMB, 
a Statement of Energy Effects for any proposed significant energy 
action. A ``significant energy action'' is defined as any action by an 
agency that promulgated or is expected to lead to promulgation of a 
final rule, and that (1) is a significant regulatory action under 
Executive Order 12866, or any successor order; and (2) is likely to 
have a significant adverse effect on the supply, distribution, or use 
of energy; or (3) is designated by the Administrator of OIRA as a 
significant energy action. For any proposed significant energy action, 
the agency must give a detailed statement of any adverse effects on 
energy supply, distribution, or use should the proposal be implemented, 
and of reasonable alternatives to the action and their expected 
benefits on energy supply, distribution, and use.
    The proposed regulatory action to amend the test procedure for 
measuring the energy efficiency of small electric motors is not a 
significant regulatory action under Executive Order 12866. Moreover, it 
would not have a significant adverse effect on the supply, 
distribution, or use of energy, nor has it been designated as a 
significant energy action by the Administrator of OIRA. Therefore, it 
is not a significant energy action, and, accordingly, DOE has not 
prepared a Statement of Energy Effects.

M. Review Under Section 32 of the Federal Energy Administration Act of 
1974

    Under section 301 of the Department of Energy Organization Act 
(Pub. L. 95-91; 42 U.S.C. 7101), DOE must comply with section 32 of the 
Federal Energy Administration Act of 1974, as amended by the Federal 
Energy Administration Authorization Act of 1977. (15 U.S.C. 788; FEAA) 
Section 32 essentially provides in relevant part that, where a proposed 
rule authorizes or requires use of commercial standards, the notice of 
proposed rulemaking must inform the public of the use and background of 
such standards. In addition, section 32(c) requires DOE to consult with 
the Attorney General and the Chairman of the Federal Trade Commission 
(``FTC'') concerning the impact of the commercial or industry standards 
on competition.
    The proposed modifications to the test procedures for small 
electric motors and electric motors adopted in this NOPR incorporate 
testing methods contained in certain sections of the following 
commercial standard: ``IEC 60034-2-1:2014 Rotating electrical 
machines--Part 2-1: Standard methods for determining losses and 
efficiency from tests (excluding machines for traction vehicles).'' DOE 
has evaluated this standard and is unable to conclude whether it fully 
complies with the requirements of section 32(b) of the FEAA (i.e., 
whether it was developed in a manner that fully provides for public 
participation, comment, and review.) DOE will consult with both the 
Attorney General and the Chairman of the FTC concerning the impact of 
these test procedures on competition, prior to prescribing a final 
rule.

N. Description of Materials Incorporated by Reference

    In this NOPR, DOE proposes to incorporate by reference standards 
published by IEEE, IEC, and NEMA. The IEC standard, titled ``IEC 60034-
2-1:2014 Rotating electrical machines--Part 2-1: Standard methods for 
determining losses and efficiency from tests (excluding machines for 
traction vehicles)'' is a proposed alternative industry standard to 
those currently incorporated by reference (IEEE 112-2004, IEEE 114-
2010, CSA C747-09, and CSA C390-10) for measurement of small electric 
motor efficiency and electric motor efficiency (See section III.C.1 for 
more details). IEC 60034-2-1:2014 establishes methods of determining 
efficiencies from tests and to specify methods of obtaining specific 
losses. In addition, DOE proposed to incorporate by reference two 
additional IEC standards, titled ``IEC 60034-1:2010, Rotating 
electrical machines--Part 1: Rating and performance'' and ``IEC 60051-
1:2016, Direct acting indicating analogue measuring instruments and 
their accessories--Part 1: Definitions and general requirements common 
to all parts.'' IEC 60034-1:2001 and IEC 60051-1:2016 specify test 
conditions and procedures that are required for application of the test 
methods for measurement of energy efficiency established in IEC 60034-
2-1:2014. The IEEE standard, titled ``IEEE 112-2017, Test Procedure for 
Polyphase Induction Motors and Generators'' establishes additional 
methods of measurement for current and frequency for both small 
electric motors and electric motors. Further, DOE proposes to 
additionally incorporate IEEE 112-2017 Test Method A and Test Method B 
as alternatives to the industry test methods that are currently 
incorporated by reference from IEEE 112-2004 (See section III.C.1 for 
more details). These proposals will harmonize the permitted test 
methods under subparts X (for small electric motors) and B (for 
electric motors) of 10 CFR part 431 and align measurement and 
instrumentation requirements with industry practice. The NEMA standard, 
titled ``NEMA MG 1-2016 Motors and Generators'' establishes industry 
definitions for breakdown torque of small electric motors (See section 
III.D.2 for more details).
    In summary, DOE proposes to incorporate by reference the following 
standards:
    (1) IEC 60034-1:2010, ``Rotating electric machines--Part 1: Rating 
and performance''.
    (2) IEC 60034-2-1:2014, ``Rotating electrical machines--Part 2-1: 
Standard methods for determining losses and efficiency from tests 
(excluding machines for traction vehicles)''.
    (3) IEC 60051-1:2016, ``Direct acting indicating analogue 
electrical measuring instruments and their accessories--Part 1: 
Definitions and general requirements common to all parts''.
    (4) IEEE 112-2017, ``IEEE Standard Test Procedure for Polyphase 
Induction Motors and Generators''.
    (5) National Electrical Manufacturers Association (NEMA) MG 1-2016, 
``Motors and Generators''.
    Copies of these standards can be obtained from the organizations 
directly at the following addresses:
     International Electrotechnical Commission, 3 rue de 
Varemb[eacute], 1st floor, P.O. Box 131, CH--1211 Geneva 20--
Switzerland, +41 22 919 02 11, or

[[Page 17024]]

by visiting https://webstore.iec.ch/home.
     IEEE, 445 Hoes Lane, P.O. Box 1331, Piscataway, NJ 08855-
1331, (732) 981-0060, or by visiting http://www.ieee.org.
     NEMA, 1300 North 17th Street, Suite 900, Arlington, 
Virginia 22209, +1 703 841 3200, or by visiting https://www.nema.org.

V. Public Participation

A. Submission of Comments

    DOE will accept comments, data, and information regarding this 
proposed rule no later than the date provided in the DATES section at 
the beginning of this proposed rule. Interested parties may submit 
comments using any of the methods described in the ADDRESSES section at 
the beginning of this proposed rulemaking.
    Submitting comments via http://www.regulations.gov. The http://www.regulations.gov web page will require you to provide your name and 
contact information. Your contact information will be viewable to DOE 
Building Technologies staff only. Your contact information will not be 
publicly viewable except for your first and last names, organization 
name (if any), and submitter representative name (if any). If your 
comment is not processed properly because of technical difficulties, 
DOE will use this information to contact you. If DOE cannot read your 
comment due to technical difficulties and cannot contact you for 
clarification, DOE may not be able to consider your comment.
    However, your contact information will be publicly viewable if you 
include it in the comment or in any documents attached to your comment. 
Any information that you do not want to be publicly viewable should not 
be included in your comment, nor in any document attached to your 
comment. Persons viewing comments will see only first and last names, 
organization names, correspondence containing comments, and any 
documents submitted with the comments.
    Do not submit to http://www.regulations.gov information for which 
disclosure is restricted by statute, such as trade secrets and 
commercial or financial information (hereinafter referred to as 
Confidential Business Information (CBI)). Comments submitted through 
http://www.regulations.gov cannot be claimed as CBI. Comments received 
through the website will waive any CBI claims for the information 
submitted. For information on submitting CBI, see the Confidential 
Business Information section.
    DOE processes submissions made through http://www.regulations.gov 
before posting. Normally, comments will be posted within a few days of 
being submitted. However, if large volumes of comments are being 
processed simultaneously, your comment may not be viewable for up to 
several weeks. Please keep the comment tracking number that http://www.regulations.gov provides after you have successfully uploaded your 
comment.
    Submitting comments via email, hand delivery, or postal mail. 
Comments and documents submitted via email, hand delivery, or mail also 
will be posted to http://www.regulations.gov. If you do not want your 
personal contact information to be publicly viewable, do not include it 
in your comment or any accompanying documents. Instead, provide your 
contact information on a cover letter. Include your first and last 
names, email address, telephone number, and optional mailing address. 
The cover letter will not be publicly viewable as long as it does not 
include any comments.
    Include contact information each time you submit comments, data, 
documents, and other information to DOE. If you submit via mail or hand 
delivery, please provide all items on a CD, if feasible. It is not 
necessary to submit printed copies. No facsimiles (faxes) will be 
accepted.
    Comments, data, and other information submitted to DOE 
electronically should be provided in PDF (preferred), Microsoft Word or 
Excel, WordPerfect, or text (ASCII) file format. Provide documents that 
are not secured, written in English and free of any defects or viruses. 
Documents should not contain special characters or any form of 
encryption and, if possible, they should carry the electronic signature 
of the author.
    Campaign form letters. Please submit campaign form letters by the 
originating organization in batches of between 50 to 500 form letters 
per PDF or as one form letter with a list of supporters' names compiled 
into one or more PDFs. This reduces comment processing and posting 
time.
    Confidential Business Information. According to 10 CFR 1004.11, any 
person submitting information that he or she believes to be 
confidential and exempt by law from public disclosure should submit via 
email, postal mail, or hand delivery two well-marked copies: one copy 
of the document marked confidential including all the information 
believed to be confidential, and one copy of the document marked non-
confidential with the information believed to be confidential deleted. 
Submit these documents via email or on a CD, if feasible. DOE will make 
its own determination about the confidential status of the information 
and treat it according to its determination.
    Factors of interest to DOE when evaluating requests to treat 
submitted information as confidential include (1) a description of the 
items, (2) whether and why such items are customarily treated as 
confidential within the industry, (3) whether the information is 
generally known by or available from other sources, (4) whether the 
information has previously been made available to others without 
obligation concerning its confidentiality, (5) an explanation of the 
competitive injury to the submitting person which would result from 
public disclosure, (6) when such information might lose its 
confidential character due to the passage of time, and (7) why 
disclosure of the information would be contrary to the public interest.
    It is DOE's policy that all comments may be included in the public 
docket, without change and as received, including any personal 
information provided in the comments (except information deemed to be 
exempt from public disclosure).
    DOE considers public participation to be a very important part of 
the process for developing test procedures and energy conservation 
standards. DOE actively encourages the participation and interaction of 
the public during the comment period in each stage of this process. 
Interactions with and between members of the public provide a balanced 
discussion of the issues and assist DOE in the process. Anyone who 
wishes to be added to the DOE mailing list to receive future notices 
and information about this process should contact Appliance and 
Equipment Standards Program staff at (202) 586-6636 or via email at 
[email protected].

B. Issues on Which DOE Seeks Comment

    Although DOE welcomes comments on any aspect of this proposal, DOE 
is particularly interested in receiving comments and views of 
interested parties concerning the following issues:
    (1) DOE requests comments on its proposal to maintain the current 
scope of applicability, with respect to horsepower ratings, of the 
small electric motors test procedure.
    (2) DOE requests comment on its proposal to incorporate by 
reference IEEE 112-2017 Test Method A and Test

[[Page 17025]]

Method B as alternatives to the currently incorporated industry test 
standards in IEEE 112-2004. In particular, DOE requests data comparing 
test results of these standards.
    (3) DOE requests comment on its proposal to incorporate by 
reference IEC 60034-2-1:2014 Method 2-1-1A as an alternative to 
currently incorporated industry testing standards IEEE 112-2004 Test 
Method A and CSA C747-09. In particular, DOE requests data comparing 
the average full-load efficiency test results of those standards. DOE 
requests comments on its proposal to limit torque measurement, when 
using IEC 60034-2-1:2014 Method 2-1-1A, to either in-line, shaft-
coupled, rotating torque transducers or stationary, stator reaction 
torque transducers.
    (4) DOE requests comment on its proposal to incorporate by 
reference IEC 60034-2-1:2014 Method 2-1-1B as an alternative to the 
currently incorporated industry testing standards IEEE 112-2004 Test 
Method B and CSA C390-10 and to IEEE 112-2017-Test Method B. In 
particular, DOE requests data comparing test results of those 
standards.
    (5) DOE requests comment on the proposed definitions for ``rated 
output power'' and ``breakdown torque.''
    (6) DOE requests comment on how to determine when an ``abrupt drop 
in speed'' (e.g., the local maximum of the torque-speed plot closest to 
the rated torque) has occurred when testing the breakdown torque of a 
small electric motor.
    (7) DOE requests comment on the proposed definitions, and 
procedures for determining the values of rated frequency and rated load 
for small electric motors.
    (8) DOE seeks input on the testing cost impacts and manufacturer 
burden associated with the test procedure amendments described in this 
document. DOE also seeks comment and any additional data relevant to 
its assumptions in calculating these impacts.
    (9) DOE seeks comment on the degree to which the DOE test procedure 
should consider, and be harmonized further with, the most recent 
relevant industry standards for small electric motors and whether there 
are any changes to the Federal test method that would provide 
additional benefits to the public. DOE also requests comment on the 
benefits and burdens of adopting any industry/voluntary consensus-based 
or other appropriate test procedure, without modification.
    (10) DOE seeks comments on whether the proposed test procedure 
would place new and significant burdens on a substantial number of 
small entities.

VI. Approval of the Office of the Secretary

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

List of Subjects in 10 CFR Part 431

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

    Signed in Washington, DC, on March 20, 2019.
Steven Chalk,
Acting Deputy Assistant Secretary for Energy Efficiency, Energy 
Efficiency and Renewable Energy.

    For the reasons stated in the preamble, DOE is proposing to amend 
part 431 of Chapter II of Title 10, Code of Federal Regulations as set 
forth below:

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

0
1. 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
2. Section 431.15 is amended by:
0
a. Revising paragraph (a);
0
b. Redesignating paragraph (c)(4) as paragraph (c)(7) and paragraphs 
(c)(2) and (3) as paragraphs (c)(4) and (5), respectively;
0
c. Adding new paragraphs (c)(2), (3), and (6); and
0
d. Adding paragraph (d)(2).
    The revision and additions read as follows:


Sec.  431.15  Materials incorporated by reference.

    (a) Certain material is incorporated by reference into subpart B of 
part 431 with the approval of the Director of the Federal Register 
under 5 U.S.C. 552(a) and 1 CFR part 51. All approved material is 
available for inspection at U.S. Department of Energy, Office of Energy 
Efficiency and Renewable Energy, Building Technologies Program, Sixth 
Floor, 950 L'Enfant Plaza SW, Washington, DC 20024, (202) 586-2945, or 
go to http://www1.eere.energy.gov/buildings/appliance_standards/, and 
is available from the sources listed below. It is also available for 
inspection at the National Archives and Records Administration (NARA). 
For information on the availability of this material at NARA, call 202-
741-6030 or go to www.archives.gov/federal-register/cfr/ibr-locations.html.
* * * * *
    (c) * * *
    (2) IEC 60034-1:2010, ``Rotating electrical machines--Part 1: 
Rating and performance'', IBR approved for appendix B to subpart B of 
this part.
    (3) IEC 60034-2-1:2014, ``Rotating electrical machines--Part 2-1: 
Standard methods for determining losses and efficiency from tests 
(excluding machines for traction vehicles)'', IBR approved for appendix 
B to subpart B of this part.
* * * * *
    (6) IEC 60051-1:2016, ``Direct acting indicating analogue 
electrical measuring instruments and their accessories--Part 1: 
Definitions and general requirements common to all parts'', IBR 
approved for appendix B to subpart B of this part.
* * * * *
    (d) * * *
    (2) IEEE 112-2017, ``IEEE Standard Test Procedure for Polyphase 
Induction Motors and Generators'', approved February 14, 2018, IBR 
approved for Sec. Sec.  431.12, 431.19, 431.20, and appendix B to 
subpart B of this part.
* * * * *
0
3. Appendix B to subpart B of part 431 is amended by revising the 
introductory note and Sections 2 and 4 to read as follows:

Appendix B to Subpart B of Part 431--Uniform Test Method for Measuring 
Nominal Full Load Efficiency of Electric Motors

    Note:  For any electric motor type that is not currently covered 
by the energy conservation standards at 10 CFR 431.25, manufacturers 
of this equipment will need to use Appendix B 180 days after the 
effective date of the final rule adopting energy conservation 
standards for these motors.

Incorporation by Reference

    In Sec.  431.15, DOE incorporated by reference, the entire 
standard for CSA C390-10, IEC 60034-2-1:2014, IEC 60034-1:2010, IEC 
60051-1:2016, and IEEE 112-2017 into this appendix; however, only 
the provisions of those documents specified in section 2 of this 
appendix are applicable to this appendix.
    In cases where there is a conflict, the language of this 
appendix takes precedence over those documents. Any subsequent 
amendment to a referenced document by the standard-setting 
organization will not affect the test procedure in this appendix, 
unless and until the test procedure is amended by DOE. Material is 
incorporated as it exists on the date of the approval, and a 
notification of any change in the material will be published in the 
Federal Register.
* * * * *

[[Page 17026]]

2. Test Procedures

    Efficiency and losses must be determined in accordance with NEMA 
MG 1-2009, paragraph 12.58.1, ``Determination of Motor Efficiency 
and Losses,'' (incorporated by reference, see Sec.  431.15) and one 
of the following testing methods:
    (1) CSA C390-10 (incorporated by reference, see Sec.  431.15), 
Section 1.3 ``Scope'', Section 3.1 ``Definitions'', Section 5 
``General test requirements--Measurements'', Section 7 ``Test 
method'', Table 1 ``Resistance measurement time delay'', Annex B 
``Linear regression analysis'' and Annex C ``Procedure for 
correction of dynamometer torque readings.''
    (2) IEC 60034-2-1:2014 Method 2-1-1B (incorporated by reference, 
see Sec.  431.15), Section 3 ``Terms and definitions'', Section 4 
``Symbols and abbreviations'', Section 5 ``Basic requirements'', 
Section 6.1.3 ``Method 2-1-1B--Summation of losses, additional load 
losses according to the method of residual losses.'' The supply 
voltage shall be in accordance with section 7.2 of IEC 60034-1:2010 
(incorporated by reference, see Sec.  431.15). The measured 
resistance at the end of the thermal test shall be determined in a 
similar way to the extrapolation procedure described in section 
8.6.2.3.3 of IEC 60034-1:2010 (incorporated by reference, see Sec.  
431.15), using the shortest possible time instead of the time 
interval specified in Table 5 therein, and extrapolating to zero. 
The measuring instruments for electrical quantities shall have the 
equivalent of an accuracy class of 0,2 in case of a direct test and 
0,5 in case of an indirect test in accordance with IEC 60051-1:2016 
(incorporated by reference, see Sec.  431.15).
    (3) IEEE 112-2004, Section 6.4 ``Efficiency test method B--
Input-output with loss segregation (incorporated by reference, see 
Sec.  431.15), or
    (4) IEEE 112-2017 Test Method B, Input-Output With Loss 
Segregation, (incorporated by reference, see Sec.  431.15), Section 
3 ``General'', Section 4 ``Measurements'', Section 5 ``Machine 
losses and tests for losses'', Section 6.1 ``General'', Section 6.4 
``Efficiency test method B--Input-output with loss segregation'', 
Section 7 ``Other performance tests'', Section 9.2 ``Form A--Method 
A'', Section 9.3 ``Form A2--Method A calculations'', Section 9.4 
``Form B--Method B'', and Section 9.5 ``Form B2--Method B 
calculations.
* * * * *

4. Procedures for the Testing of Certain Electric Motor Types

    Prior to testing according to CSA C390-10, IEC 60034-2-1:2014 
Method 2-1-1B, IEEE 112-2004 (Test Method B), or IEEE 112-2017 (Test 
Method B) (incorporated by reference, see Sec.  431.15), each basic 
model of the electric motor types listed below must be set up in 
accordance with the instructions of this section to ensure 
consistent test results. These steps are designed to enable a motor 
to be attached to a dynamometer and run continuously for testing 
purposes. For the purposes of this appendix, a ``standard bearing'' 
is a 6000 series, either open or grease-lubricated double-shielded, 
single-row, deep groove, radial ball bearing.
* * * * *

0
4. Section 431.442 is amended by adding in alphabetical order 
definitions for ``breakdown torque'', ``rated frequency'', ``rated 
load'', ``rated output power'', and ``rated voltage'', to read as 
follows:


Sec.  431.442  Definitions.

* * * * *
    Breakdown torque means the maximum torque that the motor will 
develop with rated voltage and frequency applied without an abrupt drop 
in speed, determined in accordance with NEMA MG 1-2016 (incorporated by 
reference, see Sec.  431.443).
* * * * *
    Rated frequency means 60 hertz.
    Rated load means the rated output power of a small electric motor.
    Rated output power means the mechanical output power that 
corresponds to the small electric motor's breakdown torque as specified 
in NEMA MG 1-2016 Table 10-5 (incorporated by reference, see Sec.  
431.443) for single-phase motors or 140 percent of the breakdown torque 
values specified in NEMA MG 1-2016 Table 10-5 for polyphase motors. For 
purposes of this definition, NEMA MG 1-2016 Table 10-5 is applied 
regardless of whether elements of NEMA MG 1-2016 Table 10-5 are 
identified as for small or medium motors.
    Rated voltage means the input voltage of a small electric motor 
selected by the motor's manufacturer to be used for testing the motor's 
efficiency.
* * * * *
0
5. Section 431.443 is amended by:
0
a. Revising paragraph (a);
0
b. Redesignating paragraph (c) as (d);
0
c. Adding new paragraph (c);
0
d. Redesignating newly designated paragraph (d)(2) as paragraph (d)(3), 
and adding new paragraph (d)(2); and
0
e. Adding paragraph (e).
    The revisions and additions read as follows:


Sec.  431.443  Materials incorporated by reference.

    (a) Certain material is incorporated by reference into subpart X of 
part 431 with the approval of the Director of the Federal Register 
under 5 U.S.C. 552(a) and 1 CFR part 51. All approved material is 
available for inspection at U.S. Department of Energy, Office of Energy 
Efficiency and Renewable Energy, Building Technologies Program, Sixth 
Floor, 950 L'Enfant Plaza SW, Washington, DC 20024, (202) 586-2945, or 
go to http://www1.eere.energy.gov/buildings/appliance_standards/, and 
is available from the sources listed below. It is also available for 
inspection at the National Archives and Records Administration (NARA). 
For information on the availability of this material at NARA, call 202-
741-6030 or go to www.archives.gov/federal-register/cfr/ibr-locations.html.
* * * * *
    (c) IEC. International Electrotechnical Commission, 3 rue de 
Varemb[eacute], 1st Floor, P.O. Box 131, CH--1211 Geneva 20--
Switzerland, +41 22 919 02 11, or go to https://webstore.iec.ch/home.
    (1) IEC 60034-1:2010, ``Rotating electrical machines--Part 1: 
Rating and performance'', IBR approved for Sec. Sec.  431.444, 
431.447.(2) IEC 60034-2-1:2014 (``IEC 60034-2-1''), ``Rotating 
electrical machines--Part 2-1: Standard methods for determining losses 
and efficiency from tests (excluding machines for traction vehicles)'', 
approved June 2014, IBR approved for Sec. Sec.  431.444, 431.447.
    (3) IEC 60051-1:2016, ``Direct acting indicating analogue 
electrical measuring instruments and their accessories--Part 1: 
Definitions and general requirements common to all parts'', IBR 
approved for Sec. Sec.  431.444, 431.447.
    (d) * * *
    (2) IEEE 112-2017, ``IEEE Standard Test Procedure for Polyphase 
Induction Motors and Generators'', approved February 14, 2018, IBR 
approved for Sec. Sec.  431.444, 431.447.
* * * * *
    (e) NEMA. National Electrical Manufacturers Association, 1300 North 
17th Street, Suite 900, Arlington, Virginia 22209, +1 703 841 3200, or 
go to https://www.nema.org.
    (1) NEMA MG 1-2016, ``Motors and Generators'', approved March 2017, 
IBR approved for Sec. Sec.  431.442.
    (2) [Reserved].
0
6. Section 431.444 is revised to read as follows:


Sec.  431.444  Test Procedures for the measurement of energy efficiency 
of small electric motors.

    Prior to [DATE 180 days after publication of a final rule in the 
Federal Register], representations with respect to the energy use or 
efficiency of small electric motors must be based on testing conducted 
in accordance with Sec.  431.444 as it appeared in 10 CFR part 431 
subpart X in the 10 CFR parts 200 through 499 edition revised as of 
January 1, 2019. Starting on [Date 180 days after publication of a 
final rule in the Federal Register] representations with respect to 
energy use or efficiency of small electric motors must be based

[[Page 17027]]

on testing conducted in accordance with the results of testing pursuant 
to this section.
    (a) Scope. Pursuant to section 346(b)(1) of EPCA, this section 
provides the test procedures for measuring the full-load efficiency of 
small electric motors pursuant to EPCA. (42 U.S.C. 6317(b)(1)) For 
purposes of this part 431 and EPCA, the test procedures for measuring 
the efficiency of small electric motors shall be the test procedures 
specified in paragraph (b) of this section.
    (b) Testing and Calculations. Determine the full-load efficiency of 
a small electric motor using one of the test methods listed in 
paragraphs (b)(2) through (4) of this section. Where the terms ``rated 
frequency,'' ``rated load,'' and ``rated voltage'' appear in the 
standards incorporated by reference, use the corresponding definitions 
provided at Sec.  431.442.
    (1) Incorporation by reference. (i) In Sec.  431.443, DOE 
incorporated by reference the entire standard for CSA C747-09, CSA 
C390-10, IEC 60034-2-1:2014, IEC 60034-1:2010, IEC 60051-1:2016, and 
IEEE 112-2017 into this section; however, only the provisions of those 
documents specified in paragraphs (b)(2) through (4) of this section 
are applicable to this section.
    (ii) In cases where there is a conflict, the language of this 
appendix takes precedence over those documents. Any subsequent 
amendment to a referenced document by the standard-setting organization 
will not affect the test procedure in this appendix, unless and until 
the test procedure is amended by DOE. Material is incorporated as it 
exists on the date of the approval, and a notification of any change in 
the material will be published in the Federal Register.
    (2) Single-phase small electric motors. For single-phase small 
electric motors, use one of the following methods:
    (i) IEEE 114-2010,, Section 3.2, ``Test with load'', Section 4, 
``Testing Facilities, Section 5, ``Measurements'', Section 6, 
``General'', Section 7, ``Type of loss'', Section 8, ``Efficiency and 
Power Factor''; Section 10 ``Temperature Tests'', Annex A, Section A.3 
``Determination of Motor Efficiency'', Annex A, Section A.4 
``Explanatory notes for form 3, test data'';
    (ii) CSA C747-09, Section 1.6 ``Scope'', Section 3 ``Definitions'', 
Section 5, ``General test requirements'', and Section 6 ``Test 
method'';
    (iii) IEC 60034-2-1:2014 Method 2-1-1A., Section 3 ``Terms and 
definitions'', Section 4 ``Symbols and abbreviations'', Section 5 
``Basic requirements'', and Section 6.1.2 ``Method 2-1-1A--Direct 
measurement of input and output'' (except Section 6.1.2.2, ``Test 
Procedure''). The supply voltage shall be in accordance with section 
7.2 of IEC 60034-1:2010 (incorporated by reference, see Sec.  431.443). 
The measured resistance at the end of the thermal test shall be 
determined in a similar way to the extrapolation procedure described in 
section 8.6.2.3.3 of IEC 60034-1:2010 (incorporated by reference, see 
Sec.  431.443), using the shortest possible time instead of the time 
interval specified in Table 5 therein, and extrapolating to zero. The 
measuring instruments for electrical quantities shall have the 
equivalent of an accuracy class of 0,2 in case of a direct test and 0,5 
in case of an indirect test in accordance with IEC 60051-1:2016 
(incorporated by reference, see Sec.  431.443).
    (A) Additional IEC 60034-2-1:2014 Method 2-1-1A Torque Measurement 
Instructions. If using IEC 60034-2-1:2014 Method 2-1-1A to measure 
motor performance, follow the instructions in paragraph (b)(2)(iii)(B) 
of this section, instead of section 6.1.2.2 of IEC 60034-2-1:2014;
    (B) Couple the machine under test to a load machine. Measure torque 
using an in-line, shaft-coupled, rotating torque transducer or 
stationary, stator reaction torque transducer. Operate the machine 
under test at the rated load until thermal equilibrium is achieved 
(rate of change 1 K or less per half hour). Record U, I, Pel, n, T, 
[thgr]c.
    (3) Polyphase small electric motors of less than or equal to 1 
horsepower (0.75 kW). For polyphase small electric motors with 1 
horsepower or less, use one of the following methods:
    (i) IEEE 112-2004, Section 6.3, ``Efficiency test method A--Input-
output'';
    (ii) IEEE 112-2017, Section 3, ``General'', Section 4, 
``Measurements'', Section 5, ``Machine losses and tests for losses'', 
Section 6.1, ``General'', Section 6.3, ``Efficiency test method A--
Input-output'', Section 9.2, ``Form A--Method A'', and Section 9.3, 
``Form A2--Method A calculations'';
    (iii) CSA C747-09,, Section 1.6 ``Scope'', Section 3 
``Definitions'', Section 5, ``General test requirements'', and Section 
6 ``Test method'';
    (iv) IEC 60034-2-1:2014, Section 3 ``Terms and definitions'', 
Section 4 ``Symbols and abbreviations'', Section 5 ``Basic 
requirements'', and Section 6.1.2 ``Method 2-1-1A--Direct measurement 
of input and output'' (except Section 6.1.2.2, ``Test Procedure''). The 
supply voltage shall be in accordance with section 7.2 of IEC 60034-
1:2010 (incorporated by reference, see Sec.  431.443). The measured 
resistance at the end of the thermal test shall be determined in a 
similar way to the extrapolation procedure described in section 
8.6.2.3.3 of IEC 60034-1:2010 (incorporated by reference, see Sec.  
431.443), using the shortest possible time instead of the time interval 
specified in Table 5 therein, and extrapolating to zero. The measuring 
instruments for electrical quantities shall have the equivalent of an 
accuracy class of 0,2 in case of a direct test and 0,5 in case of an 
indirect test in accordance with IEC 60051-1:2016 (incorporated by 
reference, see Sec.  431.443).
    (A) Additional IEC 60034-2-1:2014 Method 2-1-1A Torque Measurement 
Instructions. If using IEC 60034-2-1:2014 Method 2-1-1A to measure 
motor performance, follow the instructions in paragraph (b)(3)(iv)(B) 
of this section, instead of section 6.1.2.2 of IEC 60034-2-1:2014;
    (B) Couple the machine under test to load machine. Measure torque 
using an in-line shaft-coupled, rotating torque transducer or 
stationary, stator reaction torque transducer. Operate the machine 
under test at the rated load until thermal equilibrium is achieved 
(rate of change 1 K or less per half hour). Record U, I, Pel, n, T, 
[thgr]c.
    (4) Polyphase small electric motors of greater than 1 horsepower 
(0.75 kW). For polyphase small electric motors exceeding 1 horsepower, 
use one of the following methods:
    (i) IEEE 112-2004, Section 6.4, ``Efficiency test method B--Input-
output with loss segregation''; or
    (ii) IEEE 112-2017, Section 3, ``General''; Section 4, 
``Measurements''; Section 5, ``Machine losses and tests for losses'', 
Section 6.1, ``General'', Section 6.4, ``Efficiency test method B--
Input-output with loss segregation'', Section 9.4, ``Form B--Method 
B'', and Section 9.5, ``Form B2--Method B calculations''; or
    (iii) CSA C390-10, Section 1.3, ``Scope'', Section 3.1, 
``Definitions'', Section 5, ``General test requirements--
Measurements'', Section 7, ``Test method'', Table 1, ``Resistance 
measurement time delay, Annex B, ``Linear regression analysis'', and 
Annex C, ``Procedure for correction of dynamometer torque readings''; 
or
    (iv) IEC 60034-2-1:2014, Section 3 ``Terms and definitions'', 
Section 4 ``Symbols and abbreviations'', Section 5 ``Basic 
requirements'', Section 6.1.3 ``Method 2-1-1B--Summation of losses, 
additional load losses according to the method of residual losses.'', 
and Annex D, ``Test report template for 2-1-1B''.

[[Page 17028]]

The supply voltage shall be in accordance with section 7.2 of IEC 
60034-1:2010 (incorporated by reference, see Sec.  431.443). The 
measured resistance at the end of the thermal test shall be determined 
in a similar way to the extrapolation procedure described in section 
8.6.2.3.3 of IEC 60034-1:2010 (incorporated by reference, see Sec.  
431.443), using the shortest possible time instead of the time interval 
specified in Table 5 therein, and extrapolating to zero. The measuring 
instruments for electrical quantities shall have the equivalent of an 
accuracy class of 0,2 in case of a direct test and 0,5 in case of an 
indirect test in accordance with IEC 60051-1:2016 (incorporated by 
reference, see Sec.  431.443).
0
7. Section 431.447 is amended by revising paragraphs (b)(4) and (c)(4), 
to read as follows:


 Sec.  431.447  Department of Energy recognition of nationally 
recognized certification programs.

* * * * *
    (b) * * *
    (4) It must be expert in the content and application of the test 
procedures and methodologies in IEEE 112-2004, IEEE 112-2017, IEEE Std 
114-2010, IEC 60034-2-1, CSA C390-10, and CSA C747 (incorporated by 
reference, see Sec.  431.443) or similar procedures and methodologies 
for determining the energy efficiency of small electric motors. It must 
have satisfactory criteria and procedures for the selection and 
sampling of electric motors tested for energy efficiency.
    (c) * * *
    (4) Expertise in small electric motor test procedures. The petition 
should set forth the program's experience with the test procedures and 
methodologies in IEEE Std 112-2004, IEEE Std 112-2017, IEEE Std 114-
2010, IEC 60034-2-1, CSA C390-10, and CSA C747 (incorporated by 
reference, see Sec.  431.443) and with similar procedures and 
methodologies. This part of the petition should include items such as, 
but not limited to, a description of prior projects and qualifications 
of staff members. Of particular relevance would be documentary evidence 
that establishes experience in applying guidelines contained in the 
ISO/IEC Guide 25, General Requirements for the Competence of 
Calibration and Testing Laboratories to energy efficiency testing for 
electric motors.
* * * * *
[FR Doc. 2019-06868 Filed 4-22-19; 8:45 am]
BILLING CODE 6450-01-P