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Rulemaking for Battery Chargers and External Power Supplies Energy Conservation Standard

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The Department of Energy (DOE) is amending the current energy conservation standards for Class A external power supplies and establishing new energy conservation standards for battery chargers and non-Class A external power supplies. This rulemaking is mandated by the Energy Policy and Conservation Act (EPCA).


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


Recent Updates

DOE has issued a pre-publication Federal Register supplemental notice of proposed rulemaking regarding energy conservation standards for battery chargers (July 30, 2015).  A public meeting is scheduled for September 15, 2015 in Washington, DC. 

DOE published a final rule prescribing new energy conservation standards for external power supplies. 79 FR 7845 (February 10, 2014). This new standard applies to all direct operation External Power Supplies and includes, in addition to Class A power supplies previously covered by 2007 standards, power supplies that have not previously been subject to DOE regulations, such as multiple-voltage EPSs, EPSs with nameplate output power greater than 250 watts, and some EPSs that charge the battery of a product that is fully or primarily motor operated.


Public Meeting Information

DOE will hold a public meeting on September 15, 2015 from 9 a.m. to 4 p.m., in Washington, DC at DOE's Forrestal Building, Room 8E-089, 1000 Independence Ave. S.W., 20585.

To attend the public meeting, please notify Ms. Brenda Edwards at (202) 586-2945 or Brenda.Edwards@ee.doe.gov. 

Register for the webinar here.

Submitting Public Comments

Comments are due 60 days after publication in the Federal Register.

Any comments submitted must identify the SNOPR on Energy Conservation Standards for Battery Chargers, and provide docket number EE-2008–BT–STD–0005 and/or regulatory information number (RIN) 1904-AB57.  Comments may be submitted using any of the following methods: 

1. Federal eRulemaking Portal: www.regulations.gov.  Follow the instructions for submitting comments. 

2. E-mail: BatteryChargersSTD0005@ee.doe.gov.  Include the docket number and/or RIN in the subject line of the message.  Submit electronic comments in WordPerfect, Microsoft Word, PDF, or ASCII file format, and avoid the use of special characters or any form of encryption.

3. Postal Mail: Ms. Brenda Edwards, U.S. Department of Energy, Building Technologies Office, Mailstop EE-5B, 1000 Independence Avenue, SW., Washington, DC, 20585-0121.  If possible, please submit all items on a compact disc (CD), in which case it is not necessary to include printed copies.

4. Hand Delivery/Courier: Ms. Brenda Edwards, U.S. Department of Energy, Building Technologies Office, 950 L’Enfant Plaza, SW., Suite 600, Washington, DC, 20024.  Telephone: (202) 586-2945.  If possible, please submit all items on a CD, in which case it is not necessary to include printed copies.


Milestones and Documents

The battery chargers energy conservation standard rulemaking docket EERE–2008–BT–STD–0005 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.


Related Rulemakings

DOE has also conducted test procedure rulemakings for battery chargers and external power supplies. To learn more about these activities, please visit the test procedure sections of the battery chargers and external power supplies product pages.



Statutory Authority

The current energy conservation standards for battery chargers and 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