This document lists training courses from the National Safety ECDU related to occupational safety and health. It outlines train-the-trainer courses for construction, general industry, and maritime, as well as prerequisite and additional specialty courses on topics like hazardous materials, machinery guarding, confined spaces, and ergonomics. Targeted courses cover specific industries and hazards such as nursing homes, warehousing, bolting safety, lockout/tagout, combustible dust, bloodborne pathogens, pandemics, excavation hazards, and accident investigation.