To help home builders and lighting industry professionals adapt to California's 2005 Title 25 energy code that went into effect October 1, 2005, the California Lighting Technology Center (CLTC), established through a joint effort of the California Energy Commission and the University of California, Davis, published the “Residential Lighting Design Guide.” The guide offers design and technology tips and caution notes for complying with revised efficiency standards, which may also be applied to installations in states outside of California. To access the guide and supporting workshop presentations, visit the CLTC Web site at