What does ANU Category I encompass?

ANU Category I refers specifically to life support diving equipment, which is essential for ensuring the diver's safety and well-being underwater. This category typically includes equipment that provides essential functions such as breathing gases, buoyancy control, and critical safety features necessary for life during diving operations.

Life support diving equipment encompasses items like tanks, regulators, buoyancy control devices (BCDs), and dive computers. These components are crucial for maintaining a diver's ability to breathe, manage ascents and descents safely, and ensure overall protection throughout the dive. Such gear is designed to sustain life in underwater environments where the availability of oxygen and safe pressure levels are critical.

The other options relate to different aspects of diving or equipment but do not fall under the category of life support. Emergency dive equipment refers to items used in rescue or emergency scenarios, inspection tools are used for assessing the condition of equipment or structures, and heavy dive gear generally refers to the equipment used for specialized heavy-duty diving tasks, often more associated with commercial diving applications rather than basic life support.