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Class Action Lawsuit from WikiPedia:

In law, a class action or a representative action is a form of lawsuit where a large group of people collectively bring a claim to court. This form of collective lawsuit originated in the United States and is still predominantly a U.S. phenomenon, at least the U.S. variant of it. However, in several European countries with civil law (as opposed to the English common law principle, which is used by US courts), changes have in recent years been made that allow consumer organizations to bring claims on behalf of large groups of consumers.

In the United States federal courts, class actions are governed by Federal Rules of Civil Procedure Rule 23 and 28 U.S.C.A. § 1332 (d).

Class action lawsuits may be brought in federal court if the claim arises under federal law, or if the claim falls under 28 USCA § 1332 (d).

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