In order to allow class action defense attorneys anticipate the types of class actions against which they will have to defend in California, 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 September 11 – 17, 2009, during which time only 34 new class action cases were filed in these California courts. Labor law class actions generally top the list by a wide margin, often accounting for more than half of the new class action lawsuits filed, but class actions alleging violations of California’s Unfair Competition Law (UCL), which includes false advertising claims, ran a close second this week. This past week, only 16 of the new class action filings involved employment-related claims (47% 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 UCL, with 10 new class action lawsuits (29% of the new class actions filed during the reporting period).