The document outlines the 2016 Static and Mobile Pressure Vessels (Unfired) Rules, detailing definitions, design codes, and requirements for safety fittings and construction related to pressure vessels, particularly focusing on LNG facilities. Key safety measures include pressure relief valves, emergency shutoff systems, and construction guidelines to withstand environmental forces. Additionally, it emphasizes the importance of flammable gas detection systems and proper grounding for all equipment used in storage and handling of liquefied natural gas.