1. Please provide updates on new NBC initiatives that are currently in process or are. scheduled. We are particularly interested in: the processing of stand-alone Forms I-. 130; the processing of interview-waiver eligible Forms I-485 and work allocations.
Shoring (Shoring System): a structure that is built or put in place to support the sides of an excavation and designed to prevent cave-ins. Sides: See Faces. Sloping (Sloping System): sloping the sides of the excavation away from the excavation to protect employees from cave-ins.
Trenching and Excavation. Trenching and Excavation. Course Overview. Trenching and Excavation is an intermediate online safety course that will help you understand the OSHA Excavation Standard. Learn about specific excavation requirements, the soil classification system and mandates for protective systems.