Final answer:
Employees over or near water must be provided with life jackets or personal flotation devices to prevent drowning, with additional safety measures like emergency rescue training, warning signs, and floating barriers being crucial.
Step-by-step explanation:
Employees working over or near water where the danger of drowning exists shall be provided life jackets or personal flotation devices. This is a safety measure designed to prevent drowning in case an employee falls into the water. These devices are critical as they provide buoyancy and help the person to stay afloat until rescued. It is essential to ensure that all employees are equipped with the proper safety gear and receive adequate emergency rescue training. Additionally, signs like "no diving" must be observed to avoid injuries. It's important to be aware of various water hazards and ensure that safety measures such as warning signs and floating barriers are in place. In certain specialized situations, such as SCUBA diving or handling of toxic chemicals like chlorine, more advanced protective equipment and procedures are required to ensure safety.