Appliance Standards

Appliance standards represent a cost-effective strategy to protect consumers and businesses and strengthen the state’s clean energy economy. Efficiency products save energy and water, reduce long-term operating costs, and cut greenhouse gas emissions.

On May 7, 2019, Governor Jay Inslee signed into law House Bill 1444, which adds 17 new products (pdf) to state standards last updated in 2009. The standards are estimated to save Washington consumers and businesses $2 billion in energy and water costs.

Most standards took effect on January 1, 2021. The effective dates of the standards are based on date of manufacture, not date of sale. Products already in stores or warehouses may be installed after the new standards take effect. The standards apply to manufacturers, distributors, retailers, and installers, rather than to individual consumers.

2021 Appliance Standards Guidebook (link)

Request for Suspension of Water Heater Standard

Commerce has received a request from A. O. Smith Corporation, a manufacturer of water heaters, to suspend the requirements of WAC 194-24-180. This rule requires that electric storage water heaters sold or installed in Washington have a modular communications port compliant with the CTA-2045-A standard. The rule took effect for heat pump models on Jan. 1, 2021, and will take effect for electric resistance models on Jan. 1, 2022.
The request asks that the rule be suspended for a period not to exceed one year.

The request cites a shortage of specialty electronic components due to global disruptions of commerce as a result of COVID-19.

Commerce is accepting public comment on this request, including:

  • whether to grant the requested suspension
  • the reasonable length of any suspension
  • whether any suspension should cover all electric storage water heaters or be limited to electric resistance water heaters.

AOS WA Compliance Suspension Request (Sept. 29, 2021) (pdf)
Joint Association Supply Chain White Paper (pdf)

Comments may be submitted by email until Wednesday, Oct. 20 to

Rulemaking Announcements

Appliance energy efficiency standards and testing methods kick-off workshop

Oct. 27, 2021, 9 to 11 a.m.

Commerce will be holding a public workshop on Wednesday, Oct. 27, 2021, to discuss potential rules updates to any existing appliances (WAC 194-24) that use an adopted reference standard or test method. Meeting details are posted below. A meeting agenda and other materials will be posted below ahead of the meeting.

Questions or comments may be submitted to Liz Reichart at

Virtual meeting

  • CR-101 (pdf)
  • Zoom (link)
  • Meeting ID: 896 5110 3854
  • Passcode: Appliances


  • Join-by-phone: +1 253 215 8782
  • Meeting ID: 896 5110 3854
  • Passcode: 6785647435

Regulatory Advisories

Electric Storage Water Heater Labeling or Marking Requirements

Commerce issued a regulatory advisory on March 20, 2020, providing limited guidance on electric storage water heater labeling and marking. 

General Service Lamps

Commerce issued a regulatory advisory on March 12, 2020, providing limited guidance on the status of Washington standards for general service lamps.

Legal Resources


Need Help?

Liz Reichart
Sr. Energy Policy Specialist
Phone: 360-515-8194

Brittany Wagner,
Appliance Standards Program Manager
Phone: 360-764-0225

Steven Hershkowitz,
Legislative and Rulemaking Coordinator

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