The Occupational Safety and Health Administration (OSHA) measures illness and injury by using an acronym called DART. DART stands for “Days Away, Restricted and Transferred.” Companies use a formula designed by OSHA to calculate their DART. The variables used in this formula come from the company’s OSHA 300 form. The OSHA 300 form is used to track recordable injuries and illnesses within a given company in a given year.