How to Figure OSHA Dart Rates
Things You'll Need
- OSHA form 300
- OSHA form 300A
- Payroll records
Instructions
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Calculate Your OSHA DART Rate
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1
Determine the number of cases involving days away from work, restricted work duty or transfer to another job. This is the total number of lost-time incidents recorded as entries in column H and column I of OSHA form 300. You may also obtain this number by adding the total number of cases entered on line H and line I of OSHA form 300A.
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2
Determine the number of hours worked by all employees during the year. This number is the total of all regular and overtime hours worked, which is available in the employment information section of OSHA form 300. You may also obtain this number through payroll records.
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3
Calculate your OSHA DART rate. The total number of cases involving days away from work, restricted work duty or transfer to another job, multiplied by 200,000 (the equivalent of 100 full-time employees working 40 hours a week, 50 weeks per year), then divided by the total number of hours worked during the year. This equals the DART rate. OSHA rates are expressed as a rate per 100 full-time employees. This provides companies with a standard value to compare safety performance without regard to the number of employees.
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