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Total Recordable Injury Frequency Rate (TRIFR)

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, substitute work, and other injuries requiring treatment by a medical professional per million hours worked.

To calculate your company's TRIFR, use this formula:

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

Safeopedia Explains Total Recordable Injury Frequency Rate (TRIFR)

A company's total recordable injury frequency rate is one of many metrics that companies can use to assess their safety performance and may be required to compile it by OSH regulations.

TRIFR is a lagging indicator of safety, meaning it represents the company's past safety performance but does not give us solid grounds to predict its future incident rate.

The TRIFR is not to be confused with the similarly named lost time injury frequency rate. This latter metric is limited to the number of fatalities and lost time injuries per million employees and does not include other types of injuries.

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Synonyms

Total Recordable Injury Rate, TRIR

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