Determine whether the issue affects a group of people with similar claims
Gather evidence, documents, and records related to the harm
Identify the defendant or defendants responsible
Consult a lawyer experienced in class action litigation
Compare your claims with the legal requirements for class certification
Find potential class representatives with similar injuries
File a complaint in the appropriate court
Request class certification from the court
Notify potential class members if the court allows notice
Proceed through discovery, motions, settlement talks, or trial