Rulemaking for External Power Supplies Test Procedure

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The Department of Energy (DOE) test procedure for external power supplies is codified at 10 CFR Part 430, Subpart B, Appendix Z “Uniform Test Method for Measuring the Energy Consumption of External Power Supplies”.


Recent Updates | Public Meeting Information | Submitting Public Comments | Milestones and Documents | Related Rulemakings | Statutory Authority | Contact Information


Recent Updates

DOE has published in the Federal Register a notice of final rule regarding test procedures for external power supplies 80 FR 51424. (August 25, 2015).


Public Meeting Information

There is no public meeting scheduled at this time.

Submitting Public Comments

The comment period has closed.

Milestones and Documents

The external power supply test procedures rulemaking docket number EERE–2014–BT–TP–0043 contains all notices, public comments, public meeting transcripts, and supporting documents. 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.

Notice of Proposed Rulemaking








Final Rule


  • Final Rule, published, Federal Register, (August 25, 2015)

Related Rulemakings

DOE published a final rule prescribing new energy conservation standards for external power supplies. 80 FR 51424 (August 25, 2015). For more information, please see the rulemaking page.


DOE published a final rule prescribing new energy conservation standards for external power supplies. 79 FR 7845 (February 10, 2014). For more information, please see the rulemaking page.


Statutory Authority

The current energy conservation standards for external power supplies are mandated by Part A, the ‘‘Energy Conservation Program for Consumer Products Other Than Automobiles’’ of Title III of the Energy Policy and Conservation Act (EPCA), as amended. (42 U.S.C. 6291–6309) These appliances are treated as covered products under Part A. (42 U.S.C. 6295(u))

Contact Information

For more information related to this rulemaking, please email:

battery_chargers_and_external_power_supplies@ee.doe.gov