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Paints are classified as Category 3 hazardous materials. There are many types of paints; the kind we usually refer to as “paint” is just one of them. Other types include water-based paints, varnishes, topcoats, floor coatings, etc. Curing agents and thinners also fall under the category of paints. Category 3 hazardous materials refer to flammable liquids. There are numerous types of paints, so should one obtain a hazardous materials handling certificate for all of them? Additionally, it depends on whether the packaging belongs to Category I, II, or III – the packaging category is determined by the flash point. All Category 3 hazardous materials have a flash point. Whether hazardous materials need to be loaded directly onto the ship depends mainly on their category. Common categories include Category 2, 3, 4.2, 4.3, 5; some items in Category 6 also require direct loading onto the ship, while Category 4.1, 8, and 9 do not require this. However, this is not always the case, and most items follow this pattern as a reference. When entering a port, direct loading onto the ship is required for certain items, while others need to be stored in hazardous materials warehouses first. For those entering Yangshan Port, direct loading onto the ship is necessary, and one simply waits for the loading plan to be finalized before proceeding. A hazardous materials handling certificate is required for exporting hazardous materials; without it, it is not possible to book a shipment for export. The hazardous goods certificate is usually applied for by the factory at the local import and export inspection and quarantine bureau. The validity period of the hazardous materials handling certificate is one year. Before applying for this certificate, two documents are required: one regarding the packaging’s performance and the other an identification report for classification. The packaging performance certificate proves that your packaging is suitable for containing hazardous materials and is safe. A classification and identification report serves to determine the hazardous properties of your goods, such as whether they are flammable liquids or corrosive substances, or capable of self-ignition. If they are corrosive, then they fall under Category 8 of the dangerous goods regulations; if they are flammable liquids, they belong to Category 3 of those regulations. If they possess both characteristics, it is indicated that the primary hazard is Category 8 while the secondary hazard is Category 3, and so on. These two documents are required before obtaining a hazardous materials handling permit; one is used to prove the packaging of the goods subject to such a permit, and the other is used to confirm the characteristics of the hazardous materials