Which is least likely to be an approved pool access barrier?

A self-latching pedestrian gate is designed to restrict access to a pool area by automatically closing and latching once it is opened, which enhances safety. However, it operates more effectively when part of an overall approved pool access barrier system. The effectiveness of a barrier isn’t solely determined by the presence of a self-latching mechanism; it must also be combined with an appropriate height and durability to withstand attempts to climb over or bypass.

In this context, a 4-foot tall fence, a locked sliding door, and a chain link fence can each serve as suitable pool access barriers when they meet specific criteria such as height and structural integrity. For instance, a 4-foot tall fence provides a physical barrier, while a locked sliding door can be viewed as a secondary barrier if it is securely maintained. A chain link fence can also be acceptable, provided that it is tall enough and has no gaps. Hence, the self-latching mechanism of a pedestrian gate alone, without the additional context of being part of a comprehensive barrier system, makes it less likely to be considered an approved standalone solution for pool access safety.