TRIR and DART
TRIR (Total Recordable Incident Rate) and DART (Days Away, Restricted, or Transferred rate) are the two core OSHA safety metrics. Both are normalized to a 200,000-hour basis, which represents 100 full-time employees working a year, so rates are comparable between operations of different sizes.
TRIR counts all OSHA-recordable cases; DART counts the more serious subset that involved days away from work, restricted duty, or a job transfer. Because both are scaled to 200,000 hours, a small distillery and a large one can be compared on the same footing. The rates are only as good as the underlying OSHA 300 log, which is why capturing every recordable case and the hours worked accurately is the foundation of any defensible safety number. Spirit Sight rolls both rates from the recorded incident log inside its <a href="/distillery-safety-software/">distillery safety software</a>.
How do you calculate TRIR and DART?
TRIR equals the number of recordable cases times 200,000, divided by total hours worked. DART uses the same formula but counts only cases with days away, restricted duty, or transfer. The 200,000 constant is 100 employees times 2,000 hours, so the result reads as cases per 100 full-time workers per year. The criteria for what counts as recordable are set in 29 CFR 1904.7.
What is the difference between recordable and reportable?
A recordable case meets the 29 CFR 1904 criteria and belongs on the OSHA 300 log; it feeds TRIR and DART. A reportable event is the narrower set OSHA must be told about directly: a fatality within 8 hours, or an in-patient hospitalization, amputation, or loss of an eye within 24 hours. The two are tracked as separate flags and should never be conflated.
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