Electric Motors

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As defined in the Code of Federal Regulations (CFR), “electric motor” means a machine that converts electrical power to rotational mechanical power.  The scope of this webpage only includes the subset of electric motors regulated in 10 CFR 431, Subpart B and does not include those small electric motors regulated in 10 CFR 431, Subpart X.  There is also a seperate product website for dedicated-purpose pool pump motors.

Current Standard | Current Test Procedure | Ongoing Rulemaking for Standards | Ongoing Rulemaking for Test Procedure | Helpful Links

Recent and Ongoing Activities

DOE has issued a pre-publication Federal Register notice of proposed rule pertaining (NOPR) to energy conservation standards for expanded scope electric motors. The Energy Policy and Conservation Act, as amended (EPCA), prescribes standards for various consumer products and certain commercial and industrial equipment, including electric motors. In this NOPR, DOE proposes new standards for a subset of electric motors, expanded scope electric motors, expressed in terms of average full-load efficiency, and also announces a public meeting to receive comment on these proposed standards and associated analyses and results.

  • DOE will accept comments, data, and information regarding this NOPR until 60 days after date of publication in the Federal Register. DOE will send a follow-up e-mail once the notice publishes to announce the closing date of the comment period.
  • Interested persons may submit comments identified by docket number EERE-2020-BT-STD-0007, by email (ElecMotors2020STD0007@ee.doe.gov), Federal eRulemaking portal (http://www.regulations.gov).
  • DOE will hold a public meeting and webinar on Wednesday, January 17th, 2024, from 10:00 a.m. to 4:00 p.m., in Washington, DC.
  • The public meeting will be held at the U.S. Department of Energy, Forrestal Building, Room 1E-245,1000 Independence Avenue, SW, Washington, DC 20585.
  • To attend in-person please email appliance_standards_public_meetings@ee.doe.gov
  • Click here to register for the webinar.
  • Foreign Nationals interested in participating in this meeting or webinar, must be screened by DOE Headquarters Security prior to being granted access. Please email Regina.Washington@ee.doe.gov to complete the necessary documentation at least two weeks prior to scheduled meeting date.
  • Additional webinar registration information, participant instructions, and information about the capabilities available to webinar participants will be published on DOE’s website: https://energy.gov/eere/buildings/public-meetings-and-comment-deadlines

DOE published a direct final rule to establish new and amended energy conservation standards for electric motors in the Federal Register on June 1, 2023. DOE has determined that the comments received in response to the direct final rule do not provide a reasonable basis for withdrawing the direct final rule. Therefore, DOE has published a document confirming the effective and compliance date of those standards.

  • The effective date of September 29, 2023, for the direct final rule published June 1, 2023 (88 FR 36066) is confirmed.
  • Compliance with the new standards established in the direct final rule is required on and after June 1, 2027.

DOE has published a Federal Register direct final rule pertaining to energy conservation standards for electric motors. The Energy Policy and Conservation Act (EPCA) requires DOE to periodically determine whether more-stringent, standards would be technologically feasible and economically justified, and would result in significant energy savings. In this direct final rule, DOE is adopting new and amended standards for electric motors. It has determined that the new and amended standards for these products would result in significant conservation of energy, and are technologically feasible and economically justified.

  • The effective date of this rule is September 29, 2023 unless adverse comment is received by September 19, 2023.
  • If adverse comments are received that DOE determines may provide a reasonable basis for withdrawal of the direct final rule, a timely withdrawal of this rule will be published in the Federal Register. If no such adverse comments are received, compliance with the standards established for electric motors in this direct final rule is required on and after June 1, 2027.

Notice of Petition

Notice of Petition

  • Federal Register; 84FR32437 (July 8, 2019)
Notice of Petiton
  • Federal Register, 82FR50844 (November 2, 2017)

Final Determination

Notice of Final Determination

  • Federal Register, 85FR40270 (July 6, 2020)

For the latest information on the planned timing of future DOE regulatory milestones, see the current Office of Management and Budget Unified Agenda of Regulatory and Deregulatory Actions.  All planned dates are preliminary and subject to change.


Confirmation of Effective and Compliance Dates 
  • Federal Register, 88FR72347 (October 20, 2023)
Notice of Proposed Rulemaking 
  • Federal Register, 88FR35765 (June 1, 2023)
Direct Final Rule
  • Federal Register, 88FR36066 (June 1, 2023)

Notification of a Webinar and Availability of Preliminary TSD

Request for Information
Notice of Public Meeting

Expanded Scope Electric Motors

Notice of Proposed Rulemaking 

Public Meeting Information:

There is no public meeting scheduled at this time.


Certification, Compliance, Labeling, and Enforcement

Certification, Compliance, Labeling, and Enforcement for Electric Motors and Small Electric Motors; Withdrawal; Proposed rule; Withdrawal

  • Federal Register, 86FR59887 (October 29, 2021)
  • The proposed rule that published in the Federal Register on June 24, 2016 at 81 FR 41377 is withdrawn as of October 29, 2021.

Certification, Compliance, Labeling, and Enforcement for Electric Motors and Small Electric Motors

Certification, Compliance, Labeling, and Enforcement for Electric Motors and Small Electric Motors; NOPR

  • Federal Register, 81FR41377 (June 24, 2016)

The Certification, Compliance, Labeling, and Enforcement for Electric Motors and Small Electric Motors rulemaking docket EERE-2014-BT-CE-0019 contains all notices, public comments, public meeting transcripts, and supporting documents pertaining to this rulemaking.

Submitting Public Comments

The comment period is closed.

Test Procedure

Final Rule
  • Federal Register, 87FR63588 (October 19, 2022)

Notice of Proposed Rulemaking

  • Federal Register, 86FR71710 (December 17, 2021).

Final rule; delay of effective date

Final Rule

  • Federal Register, 86FR7798 (February 2, 2021)
  • The effective dates of the final rule published January 4, 2021, at 86 FR 4, and the accompanying correction published January 15, 2021, at 86 FR 3747, are delayed to March 21, 2021
  • Federal Register (January 4, 2021)
Request for Information
  • Federal Register, 85FR34111 (June 2, 2020)

Comment Extension 

Request for Information

The docket EERE-2017-BT-TP-0047 contains all notices, public comments, and supporting documents pertaining to this rulemaking.

Public Meeting Information

There is no public meeting scheduled at this time.

Submitting Public Comments

Comment period is closed.

Current Standard

Electric motors manufactured and distributed in commerce, as defined by 42 U.S.C. 6311(7), must meet the energy conservation standards specified in the Code of Federal Regulations at 10 CFR 431.25 through 431.26.

Current Test Procedure

Manufacturers must follow the test procedure methods specified in 10 CFR 431.14 through 431.21 to determine that electric motors that are currently manufactured or distributed into commerce are in compliance with DOE standards.

Helpful Links


Labeling Requirements

DOE has established labeling requirements in section 10 CFR 431.31 through 431.32 of the Code of Regulations for the permanent nameplates of electric motors for which standards are prescribed in section 10 CFR 431.25.

Records Maintenance Requirements

DOE has established records maintenance requirements for electric motor manufacturers in section 10 CFR 431.403 of the Code of Regulations.  These requirements describe the types, organization, and retention duration of the required documentation.


DOE has established regulations on certification and compliance in section 10 CFR Part 431.35 through 431.36 of the code of Federal Regulations.


For information on current test procedure waivers, see DOE’s Waivers webpage
For information about obtaining test procedure waivers, see 10 CFR 431.401.


DOE's Office of Hearings and Appeals has authorized exception relief for certain electric motors. For information on these exception relief cases, see the Office of Hearing and Appeals listing of Product Efficiency Cases.

For information about obtaining exception relief, see 10 CFR part 1003.

Import and Export Provisions

10 CFR 431.404 contains provisions on importing electric motors into the United States.

10 CFR 431.405 contains provisions on exporting electric motors from the United States.

Subpoena Authority for Energy Efficiency

10 CFR 431.406 explains subpoena authority given to the Secretary of Energy related to carrying out part 431 of the Code of Federal Regulations.

Confidentiality of Electric Motor Data and Information

10 CFR 431.407 explains the protocol for confidentiality requests for manufacturers or private labelers of electric motors to follow when submitting data and information to the DOE.

Guidance and Frequently Asked Questions

For information on further guidance and answers to Frequently Asked Questions on all covered products, see DOE’s Further Guidance database.

State Exemptions to Federal Pre-emption

DOE has not exempted any state from this energy conservation standard. States may petition DOE to exempt a state regulation from preemption by the Federal energy conservation standard. States may also petition DOE to withdraw such exemptions. For details, see 10 CFR 431, Subpart W.

Contact information

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