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DART Rate Calculator

DART Rate Formula

incidents
hours
incidents per 200,000 hours

1. What is the DART Rate Calculator?

Definition: The DART Rate Calculator computes the OSHA Days Away, Restricted, or Transferred (DART) rate, which measures workplace safety by calculating the number of serious incidents per 200,000 hours worked.

Purpose: Helps employers and safety officers assess workplace safety, comply with OSHA regulations, and identify areas for improvement.

2. How Does the Calculator Work?

The calculator computes the DART rate using the following formula:

Formula:

\( R_d = \frac{N_d \times 200,000}{H_t} \)
Where:
  • \( R_d \): DART rate (incidents per 200,000 hours)
  • \( N_d \): Total number of DARTs (incidents)
  • \( H_t \): Total hours worked by all employees (hours)

Steps:

  • Step 1: Input Total Number of DARTs. Enter the total number of DART incidents (e.g., 5).
  • Step 2: Input Total Hours Worked. Enter the total hours worked by all employees (e.g., 500,000).
  • Step 3: Calculate DART Rate. Multiply the number of DARTs by 200,000 and divide by total hours worked.

3. Importance of DART Rate Calculation

Calculating the DART rate is crucial for:

  • Safety Compliance: Ensures adherence to OSHA reporting requirements.
  • Workplace Safety: Identifies high-risk areas by tracking serious incidents.
  • Performance Benchmarking: Allows comparison of safety performance across industries or time periods.

4. Using the Calculator

Example: Total number of DARTs = 5, Total hours worked = 500,000:

  • Step 1: \( N_d \) = 5 incidents.
  • Step 2: \( H_t \) = 500,000 hours.
  • Step 3: \( R_d = \frac{5 \times 200,000}{500,000} = 2 \).
  • Result: DART rate = 2.00 incidents per 200,000 hours.

This indicates the workplace safety level.

5. Frequently Asked Questions (FAQ)

Q: What qualifies as a DART incident?
A: A DART incident involves days away from work, restricted duties, or job transfers due to work-related injuries or illnesses, as defined by OSHA.

Q: Why use 200,000 in the formula?
A: The 200,000 constant represents 100 employees working 40 hours per week for 50 weeks, standardizing the rate for comparison.

Q: How can I reduce my DART rate?
A: Implement safety training, improve workplace conditions, and conduct regular audits to minimize incidents.

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