A PDI course stands for Powered Access Instructor or Pre-Delivery Inspection, depending on the context. In the field of powered access and aerial work platforms, PDI courses are primarily designed to equip instructors and professionals with the skills to inspect, operate, and teach the safe use of access equipment like MEWPs (Mobile Elevated Work Platforms). https://rmconnection.com/everything-you-need-to-know-about-pdi-courses-and-ipaf-pdi-teacher-training/