Title VII of the Civil Rights Act defines protected activities under two broad categories. Opposition – Opposing unlawful business practices in the workplace. This can include making internal complaints or refusing to engage in certain practices. The employee is protected even if there turns out to not have been any discrimination present so long as the employee was acting in reasonably good faith belief that there was. Participation – Participating in a formal complaint process, investigation, or proceeding against an employer for unlawful business practices. This can include filing a complaint with a government agency such as the EEOC, providing evidence for an investigation, or giving witness testimony in court proceedings.