To aid California class action defense attorneys in anticipating claims against which they may have to defend, we provide weekly an unofficial summary of legal categories for class actions filed in California state and federal courts in the Los Angeles, San Francisco, San Jose, Sacramento, San Diego, San Mateo, Oakland/Alameda and Orange County areas. This report covers the time period of from December 15 – December 21, 2006. We include only those categories that contain 10% or more of the class action filings during the relevant timeframe. Approximately 41 class action lawsuits were filed in these California state and federal courts during that time period – excluding the 16 antitrust class action cases involving British Airways et al. transferred into California by the Judicial Panel on Multidistrict Litigation (MDL), In re International Air Transp. Surcharge Antitrust Litigation, MDL-1793. Eleven (11) of the weekly class action filings (27%) alleged violations of California’s unfair competition law (UCL), many based on antitrust price-fixing claims . An identical number (11) of employment law class action claims were filed. The only other category of cases class action defense attorneys will face that met the 10% threshold consisted of class actions alleging violations of the federal Fair and Accurate Credit Transactions Act (FACTA), with 4 new cases (10%) during this time period.