This Employer’s Report of Occupational Injury or Illness (Form 5020) is required under California law for reporting workplace injuries or illnesses that result in lost time beyond the date of the incident or require medical treatment beyond first aid. The form collects essential details such as injury date, affected body part, employer knowledge date, medical provider information, and incident description. Employers must file this report within five days of knowledge of the injury, and serious injuries or fatalities must be reported immediately to Cal/OSHA.