1. What is the DART Rate?

The DART (Days Away, Restricted, or Transferred) rate is a safety metric used by OSHA to measure workplace safety. It represents the number of recordable incidents per 200,000 work hours that result in days away from work, restricted work activity, or job transfer.

2. How Does the Calculator Work?

The calculator uses the DART Rate formula:

Where:

• Cases — Number of recordable incidents resulting in days away, restricted work, or transfer
• Employee hours — Total hours worked by all employees during the period
• 200,000 — Base for 100 full-time equivalent workers (50 weeks × 40 hours × 100 workers)

Explanation: The formula standardizes injury rates across organizations of different sizes by using the 200,000 hour benchmark.

3. Importance of DART Rate Calculation

Details: The DART rate helps organizations track safety performance, compare against industry benchmarks, identify trends, and focus safety improvement efforts where most needed.

4. Using the Calculator

Tips: Enter the number of qualifying cases and total employee hours worked during the reporting period. Both values must be positive numbers, with hours greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What's considered a good DART rate?
A: Rates vary by industry. Compare against your industry average. Lower is better, with zero being ideal.

Q2: How does DART differ from TRIR?
A: TRIR includes all recordable incidents, while DART only includes those resulting in days away, restriction, or transfer.

Q3: What time period should I use for calculation?
A: Typically calculated annually, but can be calculated for any period (quarterly, monthly) for trend analysis.

Q4: Who should be included in employee hours?
A: Include all hours worked by all employees, including part-time and temporary workers.

Q5: What if I have no cases to report?
A: If there are zero cases, your DART rate will be zero. This is the best possible result.