The following links are for informational purposes only. We do not necessarily endorse any of the organizations or businesses referenced here. Use at your own risk. Please report any dead links. Please send us any related links that you think we may find useful.

• CalCERTS Home Energy Rating System - www.calcerts.com
• California Association of Building Energy Consultants - www.cabec.org
• Air Conditioning Contractors of America - www.acca.org
• California Energy Commission - www.energy.ca.gov/title24
• Title 24 Change Out requirements - http://www.energy.ca.gov/title24/changeout/index.html 
• Title 24 Energy Code related videos - www.energyvideos.com
• Energy Star Homes - www.energystar.gov
• Retrotec Duct Leakage and Infiltration Testing Equipment - www.retrotec.com