Which of the following is NOT a type of body belt?

The utility belt is considered the answer to the question as it is not classified as a type of body belt in the context of rigging and safety equipment. Body belts are specifically designed to provide support, typically during activities that require a worker to be suspended or supported in some way, often incorporating features that secure the individual while allowing for mobility.

The standard belt, back saver, and 4 D-ring backsaver are all varieties of body belts or fall protection equipment. A standard belt is fairly basic, designed for general use, while the back saver is designed with cushioning and ergonomic support to reduce strain on the lower back during extensive wear. The 4 D-ring backsaver typically includes multiple attachment points, allowing for greater versatility in fall protection configurations.

In contrast, a utility belt is usually a different type of equipment that is often used to hold tools and supplies rather than serving as a safety harness. It functions more in the realm of practicality for carrying items rather than providing support or safety for the user's body while engaged in work activities.