The Occupational Safety and Health Administration requires that employers maintain records of serious occupational injuries and illnesses using a special form. This information used to be recorded on a form called a 200 Log. In 2002, the form was updated and is now called a 300 Log.
OSHA requires employers to maintain these records so that OSHA, the employers and the workers can evaluate the safety of a workplace. The records are also used to understand industry hazards so that measures can be developed to protect workers from these hazards in the workplace. Workplace fatalities and amputations must be reported immediately to OSHA, but all other significant work-related illnesses and injuries are recorded on the 300 Log. OSHA collects data annually from selected industries from these logs.