DOE Issues a Notice of Proposed Rulemaking and Announces a Public Meeting Pertaining to Standards for Commercial Water Heating Equipment 

DOE Issues a Notice of Proposed Rulemaking and Announces a Public Meeting Pertaining to Standards for Commercial Water Heating Equipment 

The U.S. Department of Energy (DOE) has issued a pre-publication Federal Register notice of proposed rulemaking (NOPR) pertaining to energy conservation standards for commercial water heating equipment (CWH).The Energy Policy and Conservation Act, as amended (EPCA), prescribes standards for certain commercial and industrial equipment, including commercial water heaters, hot water supply boilers, and unfired hot water storage tanks (hereinafter referred to as “commercial water heating (CWH) equipment”). EPCA requires DOE to periodically determine whether more-stringent standards for CWH equipment would be technologically feasible and economically justified, and would result in significant energy savings. In this NOPR, DOE proposes to amend the standards for certain classes of CWH equipment for which DOE has tentatively determined there is clear and convincing evidence to support more-stringent standards. Additionally, DOE is proposing to codify standards for electric instantaneous CWH equipment from EPCA into the Code of Federal Regulations (CFR). DOE also announces a public meeting to receive comment on these proposed standards and the 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-2021-BT-STD-0027, by email (, Federal eRulemaking portal (
  • DOE will hold a webinar on Thursday, June 23, 2022, from 1:00 p.m. to 5:00 p.m.
  • Click here to register for the webinar.
  • The TSD is available on the rulemaking docket.
  • Foreign Nationals interested in participating in this webinar, must be screened by DOE Headquarters Security prior to being granted access. Please email 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:
  • Find product information for Commercial Water Heating Equipment including current standards and test procedures, statutory authority, waivers, exceptions and contact information.

This email was sent to on behalf of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy · 1000 Independence Ave., SW · Washington DC 20585

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