First Year Orientation & Safety Level 1 Practice Exam 2026 CAL-NEV JATC Complete Guide

The measurement of D-size for body belts is determined by measuring the distance from hip bone to hip bone. This measurement is crucial because it ensures that the belt fits properly around the user’s waist and provides adequate support during activities. A correct fit is essential for optimal safety and performance, especially in scenarios where a body belt is used for fall protection or other safety applications.

Measuring from hip bone to hip bone accounts for the specific way the body belt will sit on the body, directly impacting its effectiveness in providing support and secure attachment points. Ensuring the right size body belt plays a significant role in reducing the risk of accidents while using safety equipment.