California Energy Efficiency Regulations for Computer Monitors

Sat, 06/29/2019 - 16:06 -- MrGreen

The California Energy Commission held a webinar on April 17 to review upcoming Title 20 regulations effective for computer monitors offered for sale in California and manufactured on or after July 1, 2019. With more than 25 million computer monitors in the state, regulating their energy use will save about 696 gigawatt-hours per year. Although somewhat less stringent than the upcoming ENERGY STAR® Displays Version 8.0 specification that will be effective on January 28, 2020, the California regulation does go into effect earlier and addresses some changes to common test procedures.

The scope for computer monitors covers diagonal screen sizes from 17 inches to 61 inches and includes enhanced performance displays, gaming monitors, curved monitors, and OLED monitors. Televisions and signage displays, on the other hand, are not included. The test procedure is given in Title 20 section 1604(v), and the performance standards can be found in Title 20 section 1605.3(v).

Modifications to the test procedure governed by the ENERGY STAR Program Requirements for Displays, Final Test Method (September 2015) include the following:

  • Power draw shall be measured in each of the following modes: On Mode (per IEC 62087:2011), Computer Monitor Sleep Mode (per IEC 62301:2011), and Computer Monitor Off Mode (per IEC 62301:2011).

  • Product features unrelated to the display of images (e.g. USB hubs, webcams, speakers, LAN connections, and SD card readers) and functions not specifically addressed by the test method shall be turned off or disconnected. Built-in speakers shall be muted or turned down to the lowest volume setting for the On Mode power draw test.

Regarding performance requirements, On Mode power consumption limits are based on diagonal screen size, resolutions, and screen area. Furthermore, the computer monitor’s Sleep and Off Modes must consume less than or equal to 1.2 W combined, in contrast to the 0.5 W horizontal standby regulation in Europe. Finally, allowances are provided for enhanced performance displays, curved, OLED, touch, and gaming features.

Certain exceptions are also noted for KVM (keyboard, video, and mouse), KMM (keyboard, mouse, and monitor), very high performance monitors, and medical computer monitors.

Reporting requirements can be found in Title 20 section 1606, and marking requirements are given in Title 20 section 1607. Effective for computer monitors manufactured on or after July 1, 2019, products must certify their compliance with the standards to the Energy Commission for lawful sale in California, including internet sales.

Fact sheets and FAQs on certification, including how to certify to the MAEDBS database, are available here:

One can also reach out to the Title 20 Compliance Assistance Call Center at (888) 838-1467 (toll-free inside CA) or (916) 651-7100 (outside CA) or contact

The webinar presentation can be found at the following page: