As a resource to California class action defense attorneys, we provide weekly, unofficial summaries of the legal categories for new class action lawsuits filed in the state and federal courts located in 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 preceding week. This report covers the period from May 22 – 28, 2009, during which time 43 new class actions were filed. Labor law class actions usually top this list by a wide margin, generally accounting for more than half of the new class actions filed in any given week. During this reporting period, 22 of the new class actions involved labor law claims, representing a surprisingly low 51% of the total number of new class actions filed during the past week. Only one other category met the 10% threshold: there were 9 new class actions alleging violations of California’s Unfair Competition Law (UCL), which includes false advertising claims, accounting for 21% of the new class actions filed.