What is the minimum freeboard required for off-site hauling when loaded?

• A. 2 inches
• B. 3 inches
• C. 4 inches
• D. 1 inch

Answer: (B)

The minimum freeboard required for off-site hauling when loaded is established to ensure safety and compliance with environmental regulations concerning dust control and material spillage. A freeboard of 3 inches is necessary because it provides a sufficient buffer to prevent materials from spilling over the sides of the hauling vehicle during transport. This measurement is particularly important for dust-generating operations, as it helps minimize the risk of particulate matter being released into the air, which can have adverse effects on air quality and public health. Adequate freeboard is crucial in maintaining operational standards and avoiding potential fines or penalties for non-compliance with dust control regulations.