{"id":368960,"date":"2017-01-24T17:30:43","date_gmt":"2017-01-24T22:30:43","guid":{"rendered":"https:\/\/content.findlaw-admin.com\/ability-law\/litigation\/filing-a-lawsuit\/how-to-file-a-class-action-lawsuit.html"},"modified":"2024-04-03T12:40:11","modified_gmt":"2024-04-03T17:40:11","slug":"how-to-file-a-class-action-lawsuit","status":"publish","type":"page","link":"https:\/\/www.findlaw.com\/litigation\/filing-a-lawsuit\/how-to-file-a-class-action-lawsuit.html","title":{"rendered":"How To File a Class Action Lawsuit"},"content":{"rendered":"\n
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How To File a Class Action Lawsuit<\/h1>\n
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\n By Samuel Strom, J.D.<\/a> | Legally reviewed by Melissa Bender, Esq.<\/a>\n | Last reviewed\n
\n \n <\/i>\n Legally Reviewed\n <\/summary>\n\n
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This article has been written and reviewed for legal accuracy, clarity, and style by FindLaw\u2019s team of legal writers and attorneys<\/a> and in accordance with our editorial standards<\/a>.<\/em><\/p>\n\n <\/div>\n <\/details>\n\n

\n \n <\/i>\n Fact-Checked\n <\/summary>\n\n
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The last updated date refers to the last time this article was reviewed by FindLaw or one of our contributing authors<\/a>. We make every effort to keep our articles updated. For information regarding a specific legal issue affecting you, please contact an attorney in your area<\/a>.<\/em><\/p>\n\n <\/div>\n <\/details>\n<\/section>\n

Sometimes, one entity’s action or inaction can cause a familiar pattern of injuries to many people. For instance, if a manufacturer dumps toxic waste into the local river and contaminates a community’s drinking water, it could cause people to get sick. <\/p>\r\n

While an affected person could file an individual lawsuit, a class action lawsuit<\/a> taps into the collective strength of similar complaints against a common defendant.<\/p>\r\n

Class action lawsuits can benefit many plaintiffs through a single legal action. Filing a class action lawsuit, however, involves complex legal procedures. Such lawsuits are often more complicated than individual lawsuits.<\/p>\r\n

This article discusses how to file a class action<\/a> lawsuit. Rule 23 of the Federal Rules of Civil Procedure sets specific requirements for any class action lawsuit. Consult Rule 23<\/a> or a class action lawyer<\/a> for more information about class action law and how to file a case.<\/p>\r\n

Before Filing a Class Action Lawsuit<\/h2>\r\n

Before filing a class action lawsuit<\/a>, the potential plaintiffs<\/a> must determine several important things about the lawsuit. These include identifying a cause of action<\/a>, who will be the lead plaintiff(s), and identifying a defendant to sue. This section describes these concepts in more detail.<\/p>\r\n

Identifying a Cause of Action<\/h3>\r\n

To file a class action lawsuit, the people filing the lawsuit must identify a defendant<\/a> whose actions allegedly injured a group of people.<\/p>\r\n

For example, suppose a car manufacturer’s defective product caused many vehicles to malfunction and injure a large number of drivers. In that case, the class members could file a consumer class action lawsuit based on product liability<\/a>.<\/p>\r\n

If you have questions about the types of cases that can result in a class action lawsuit, consider contacting a class action lawyer<\/a>. An experienced class action attorney can provide important information about defining the potential class, proving the defendant is liable, and filing the case.<\/p>\r\n

Identifying the Class and Named Plaintiffs<\/h3>\r\n

A class action lawsuit is one in which a group of people (called the class) sue the same defendant based on similar claims or injuries they suffered. Each member must have an actionable claim for damages against the defendant and must share a common cause of action. One or several members of the class, called the class representative(s)<\/a>, will pursue the class action lawsuit on behalf of the class.<\/p>\r\n

Before you file a class action lawsuit, identify either one or several class members who will act as class representatives and pursue the litigation on the class’s behalf. Then identify a group of people with similar claims resulting from a defendant’s action or inaction. This group will form the case’s class.<\/p>\r\n

In theory, each class member could file their own lawsuit against the defendant. A class action lawsuit allows them to opt in and have someone else from the group sue the defendant on their behalf. <\/p>\r\n

By opting into the class, the member gives up their ability to file an individual claim regarding the lawsuit’s cause of action. If they opt out of the class, they retain their right to file their own lawsuit against the defendant.<\/p>\r\n

Most people who opt into the class action litigation will remain unnamed throughout the case and won’t participate. To file the class action lawsuit, at least one named plaintiff must represent the class. The named plaintiff, also known as the lead plaintiff, class representative, or representative party, will be an active participant in the case.<\/p>\r\n

The Class Action Complaint<\/h2>\r\n

As with any other lawsuit, the opening salvo of a class action is the initial complaint<\/a>. The named plaintiffs may file their class action complaint in federal or state court<\/a>. State laws and rules of procedure govern how to file a class action lawsuit in a state court, and they vary between the states. Rule 23 of the Federal Rules of Civil Procedure governs how to file and pursue a class action case in federal court.<\/p>\r\n

The complaint may list just one or two plaintiffs at first. The plaintiff(s) must identify the defendant(s), describe the events giving rise to the lawsuit, and identify the damages<\/a> or relief sought<\/a>.<\/p>\r\n

The complaint also identifies the proposed class in the class action lawsuit. This part of the complaint must argue that the class consists of enough people that a class action is appropriate. In the prayer for relief<\/a>, the complaint will ask that the court certify the legal action as a class action.<\/p>\r\n

What You Must Prove for Class Certification<\/h2>\r\n

Once the plaintiff files a class action lawsuit, a judge must certify the proposed class. Class certification rules vary between the states. For example, some jurisdictions require the representative plaintiff to file a motion for class certification. Other states initiate the process after the plaintiffs file their case.<\/p>\r\n

In any event, the proof needs to be shown for the following for a judge to certify the class:<\/p>\r\n