Presentations Cranes and Derricks Provides an overview of cranes and derricks, 1926, Subpart CC. Work Zone Safety Presentation Provides an overview of work zone safety. Struck By/Caught Between Presentation Provides an overview of struck by and caught between hazards in the construction industry. Materials Handling Presentation Provides an overview of material handling in construction and is based on 1926, Subpart H - Materials Handling, Storage, Use and Disposal. Training Resources and Materials Provides various training resources for the construction industry.