As a resource for California class action defense attorneys, we provide weekly, unofficial summaries of the legal categories for new class action lawsuits 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. We include only those categories that include 10% or more of the class action filings during the relevant timeframe. This report covers the time period from December 11 – 17, 2009, during which time only 30 new class action cases were filed in these California state and federal courts. Labor law class actions generally top this list by a wide margin, and this was particularly true during the past week. During this reporting period, there were 19 new class actions alleging employment-related claims (63% of the total number of new class actions filed). The only other category to break the 10% threshold involved class actions alleging violations of California’s Unfair Competition Law (UCL), which includes false advertising claims, with 5 new class action lawsuits (17% of the new class actions filed during the reporting period).