When must an ERZ Controller be present in an ERZ1?

The requirement for an ERZ Controller to be present in an ERZ1 specifically during the mining of coal or stone is aligned with the regulations aimed at ensuring safety and environmental protection in mining operations. The presence of an ERZ Controller during these activities is essential for overseeing compliance with operational protocols, managing risks, and maintaining control over the mining processes that could potentially impact the environment or operational safety.

This regulation highlights the significance of having qualified personnel in charge while extracting resources, as the mining of coal or stone can introduce various hazards and requires careful management to prevent accidents or breaches of environmental standards. The ERZ Controller’s role is crucial in coordinating responses to any operational issues that may arise during mining, thereby safeguarding both the workforce and the surrounding environment.

In contrast, the other options suggest conditions under which the controller might not be present at all times or limit their role to specific circumstances, which would not adequately address the inherent risks associated with active mining operations. This understanding is fundamental in upholding the legal requirements set forth in Queensland mining law, ensuring that the principles of environmental management and workplace safety are enforced consistently during critical activities like mining.