Life rings are important safety equipment, especially in environments where there's a risk of drowning [1]. Here's what you need to know:

• Provision and Maintenance: Approved life rings with attached lines that retain buoyancy must be provided and maintained in areas such as log booms and ponds [2].
• Pond Boats: Powered pond boats or rafts should have at least one approved fire extinguisher and one life ring with a line attached. Note that small pond boats not designed to carry more than one person may be exempt from the life ring requirement [3].
• Rescue Equipment: If workers are at risk of falling and drowning, and are not protected by a guardrail, employers must provide a life jacket and ensure it's used. Rescue equipment, including a suitable boat with a boat hook and a buoyant apparatus attached to a nylon rope, must be readily available [1].

It's also important to consider providing appropriate buoyant devices for employees working from boats, floating logs, boom sticks, or walkways along the water [2].