TENTATIVE RULING: Plaintiffs' Motion for Class Certification GRANTED.

A class action is appropriate:

"when the question is one of a common or general interest, of many persons, or when the parties are numerous, and it is impracticable to bring them all before the court...." The party seeking certification has the burden to establish the existence of both an ascertainable class and a well-defined community of interest among class members. (Lockheed, supra, at p. 1104, 131 Cal.Rptr.2d 1, 63 P.3d 913, citing Washington Mutual Bank v. Superior Court (2001) 24 Cal.4th 906, 913, 103 Cal.Rptr.2d 320, 15 P.3d 1071 (Washington Mutual).) The "community of interest" requirement embodies three factors: (1) predominant common questions of law or fact; (2) class representatives with claims or defenses typical of the class; and (3) class representatives who can adequately represent the class. (Lockheed, supra, at p. 1104, 131 Cal.Rptr.2d 1, 63 P.3d 913.)

(Sav-On Drug Stores, Inc. v. Superior Court