The U.S. Equal Employment Opportunity Commission (EEOC) is responsible for enforcing federal laws that make it illegal to discriminate against a job applicant or an employee because of the person's race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), national origin, age (40 or older), disability or genetic information. It is also illegal to discriminate against a person because the person complained about discrimination, filed a charge of discrimination, or participated in an employment discrimination investigation or lawsuit. Law students generally work closely with EEOC attorneys conducting substantive legal assignments. Typical assignments for legal interns include legal research and writing, assistance with hearing or trial preparation, and investigatory follow-up on cases.