GSR, Guidelines for Aluminum Scrap Receiving and Inspection Based on Safety and Health Considerations (Fourth Edition), was originally developed by the Association's Task Force on Scrap Charging with review and comment by the Institute of Scrap Recycling Industries, now the Recycled Materials Association. It sets out how incoming aluminum scrap should be received, unloaded, inspected and segregated so that moisture, closed containers, combustible material and other hazards are identified before the scrap reaches a furnace, with recommendations on documentation, visual inspection, sampling, storage, handling of suspect loads and communication between supplier and consumer. The guidelines are used by scrap buyers, receivers and cast shop personnel to reduce the risk of explosions and injuries.