Total Recordable Injury Frequency Rate (TRIFR)

Definition - What does Total Recordable Injury Frequency Rate (TRIFR) mean?

The total recordable injury frequency rate (TRIFR) or total recordable injury rate is the number of fatalities, lost time injuries, cases or substitute work and other injuries requiring medical treatment by a medical professional per million hours worked. This is in contrast to the lost time injury frequency rate, which is limited to the number of fatalities and lost time injuries per million employees.

To calculate TRIFR, use this formula:

(Recorded incidents X 200,000) / Total number of hours worked

Safeopedia explains Total Recordable Injury Frequency Rate (TRIFR)

There are a number of calculations designated by OSH regulations that companies must use in order to determine their safety record. In addition to determining their total recordable injury frequency rate, calculations must also be made to ascertain the lost time illness and injury frequency rate, the total recordable injuries and the all injury and illness frequency rate.

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