What counts as a recordable case on the OSHA 300 log?

Work-related injuries and illnesses that result in death, days away from work, restricted work or job transfer, medical treatment beyond first aid, loss of consciousness, or diagnosis of a significant injury or illness by a physician or licensed health care professional. First aid only cases are not recordable.

How do I get total hours worked for all employees?

Sum actual hours worked by all employees during the calendar year, including overtime. Do not use hours paid or scheduled hours. For salaried workers, count actual hours at work. Include temporary and contract workers you supervise day-to-day if you record their injuries on your log.

What is the difference between TRIR and DART rate?

TRIR includes all recordable injuries and illnesses. DART rate counts only the subset of recordable cases that resulted in days away from work, restricted duty, or job transfer. DART excludes recordable cases treated with medical treatment only where the employee returned to full duty the next scheduled shift.

OSHA 300 / 300A Log

What you don’t measure shows up in workers’ comp.

Inputs

Log year

Total hours worked

Recordable cases

DAW + restricted cases

Calculate your Total Recordable Incident Rate (TRIR) and Days Away, Restricted, or Transferred (DART) rate from your OSHA 300 log entries. Both rates express injuries and illnesses per 100 full-time workers per year, using the standard 200,000-hour denominator.

Instruction

Enter total hours worked by all employees during the log year.
Enter recordable cases from your OSHA 300 log.
Enter DAW plus restricted cases to calculate DART rate.

Worked example

A contractor with 416,000 total hours worked reports 3 recordable cases and 1 case involving days away or restricted duty.

TRIR calculates to 1.44 and DART rate to 0.48, both below the NAICS 561720 benchmark of 3.2.

Questions operators ask

What counts as a recordable case on the OSHA 300 log?: Work-related injuries and illnesses that result in death, days away from work, restricted work or job transfer, medical treatment beyond first aid, loss of consciousness, or diagnosis of a significant injury or illness by a physician or licensed health care professional. First aid only cases are not recordable.
How do I get total hours worked for all employees?: Sum actual hours worked by all employees during the calendar year, including overtime. Do not use hours paid or scheduled hours. For salaried workers, count actual hours at work. Include temporary and contract workers you supervise day-to-day if you record their injuries on your log.
What is the difference between TRIR and DART rate?: TRIR includes all recordable injuries and illnesses. DART rate counts only the subset of recordable cases that resulted in days away from work, restricted duty, or job transfer. DART excludes recordable cases treated with medical treatment only where the employee returned to full duty the next scheduled shift.