GMA-69, Guidelines for Handling Molten Aluminum (Fourth Edition, May 2016), addresses the hazards of molten aluminum in cast shops and remelt operations. Prepared by an editorial board drawn from Alcoa, Novelis, Constellium, Kaiser Aluminum, Sapa, Logan Aluminum and independent cast shop consultants, it explains how molten metal explosions occur and then gives recommendations for furnace and launder design, charging and tapping practice, tooling and preheating, control of moisture and contaminants, personal protective equipment, training and emergency response, with photographs illustrating good and poor practice. Because no definitive standards exist for handling molten aluminum, the guidelines are written to be adapted to the conditions of an individual facility, and are used by cast shop managers, safety engineers and trainers when writing operating procedures.