Who is responsible for ensuring proper ground conditions when setting up a mobile crane according to OSHA?

The correct answer highlights the role of the controlling entity in ensuring proper ground conditions when setting up a mobile crane. According to OSHA regulations, the controlling entity, which is typically an individual or organization with overall responsibility and authority for the site, is tasked with assessing and providing adequate information regarding site conditions to the crane operator and crew. This includes ensuring that the ground is stable and capable of supporting the crane's weight and the loads it will lift, which is crucial for safety and operational success.

While the equipment operator and site manager also play important roles in the setup and operation of cranes, it is ultimately the controlling entity that bears the responsibility for site-specific conditions, including soil integrity and potential hazards. The crane manufacturer, while providing guidance and specifications for the crane's operation, typically does not engage in site preparations or assessments directly. Thus, the controlling entity's oversight is essential to confirm that the ground conditions meet safety requirements that support effective crane operation.