New and updated features of this title New and enhanced content NEW: New topical coverage covers OSHA's walkaround rule, ground disturbance hazards and precautions, and alcohol and drug abuse policies and programs. ENHANCED: Modernized visuals and revised tables support and enrich the learning experience. Reorganized modules REVISED: Module 75219 of the previous edition was split into two modules to break up the content. Module 75219 now focuses more exclusively on evaluating risks and identifying appropriate methods of hazard control. NEW: A new final module, 75227, Environmental and Occupational Health, contains the content on environmental and safety hazards that was previously in Module 75219. This new module discusses environmental regulations for hazardous materials and describes the elements of a medical surveillance program.