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Energy Code Ace provides resources to help facilitate effective implementation of California's appliance efficiency standards.  Currently in this section of our site, you’ll find links to useful industry web sites and downloadable documents to help you "decode" Title 20.

Please register with the site and select a Title 20 industry role for your profile in order to receive messages about additions to our Title 20 resources!

Useful Links, Phone Numbers, and Documents 

In addition to the tools, training and resources available through Energy Code Ace, the following provide good sources of information and services related to California’s Title 20.

Energy Code Ace Title 20 Documents for Download

Primary Documents

California Energy Commission (CEC) Information & Services​​​​​​​

  • Appliances Hotline –  (888) 838-1467 or outside California (916) 651-7100 
The CEC's telephone hotline designed to support use of the new appliance database, the Modernized Appliance Efficiency Database System (MAEDBS). Services are available 9:00 AM to 4:30 PM PST. Questions may also be emailed to
The CEC’s main web portal for Title 20, including information, documents and useful links  

The CEC's newly launched appliance efficiency database. All appliances regulated under Title 20 must be certified to the CEC using MAEDBS to be legally offered for sale in California.

A set of frequently asked questions about the Modernized Appliance Efficiency Database System (MAEDBS) answered by the CEC

  • CEC ListServs – ​Follow this link to sign up for the following listservs to recieve related information, notices, and other communications, including information associated with the CEC's efficiency-related rulemaking proceedings delivered to your inbox:
    • Title 20 Compliance Assistance
    • Appliance Efficiency Enforcement Rulemaking
    • Appliance Efficiency Regulations

U.S. Department of Energy (DOE) Information & Services

The DOE's main web portal for U.S. federal appliance and equipment standards, including information, documents and useful links.

The DOE’s publicly-ac­cessible database for compliance certification of appliances and equipment regulated under DOE energy conservation standards. Manufacturers and third-parties whose appliances/equipment are regulated under both Title 20 and federal standards must certify to both the CEC MAEDBS and the DOE CCMS.

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