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Floating roof crude oil storage tanks are not special equipment. Article 2 of the Special Equipment Safety Law: This Law applies to the production (including design, manufacturing, installation, modification, and repair) of special equipment, their operation, use, inspection, testing, as well as the supervision and management of special equipment safety. The special equipment referred to in this Law includes boilers, pressure vessels (including gas cylinders), pressure pipelines, elevators, lifting machinery, passenger cableways, large-scale amusement facilities, and special motor vehicles used within premises (factories), as well as other special equipment that is stipulated by laws and administrative regulations to be subject to this Law, due to their high risk to human life and property safety. **A catalog management system is implemented for special equipment. The catalog of special equipment is formulated by the department under the State Council responsible for the safety supervision and management of special equipment, and shall come into effect after being approved by the State Council. If it is a special type of equipment, it falls under pressure vessels. Please refer to the latest catalog of special equipment for the definition of pressure vessels: A pressure vessel is a closed device used to hold gases or liquids and is subject to certain pressures. It includes fixed and mobile vessels whose maximum working pressure is 0.1 MPa (gauge pressure) or higher for gases and liquefied gases, and whose maximum working temperature is equal to or higher than their standard boiling point; such vessels also have a volume of 30 L or more and an inner diameter of 150 mm or more (for non-circular cross-sections, this refers to the largest geometric dimension of the cross-sectional boundary) ； Gas cylinders, liquefied gas cylinders, and cylinders for liquids with a standard boiling point of 60°C or lower, whose nominal working pressure at full charge is greater than or equal to 0.2 MPa (gauge pressure), and whose product of pressure and volume is greater than or equal to 1.0 MPa•L ； Oxygen chamber.