Why use 1 million hours in calculating accident frequency rate?

Using 1 million hours in calculating accident frequency rate standardizes the measurement, allowing for consistent comparisons across different industries and organizations regardless of their size or operational scale. This approach provides a clear perspective on safety performance by normalizing the number of accidents to a common baseline of work hours, making it easier to identify trends and evaluate the effectiveness of safety measures. Additionally, it simplifies communication of safety statistics to stakeholders, enhancing understanding and accountability.