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.
Surface mining can be subdivided into two large categories: open-pit mining and strip mining. Open-pit mining is used when an ore bed covers a very large area in both distance and depth. Mining begins when scrapers remove any non-ore material (called overburden) on top of the ore.