The United States TSCA certification refers to an environmental protection certification in compliance with the Toxic Substances Control Act (TSCA). TSCA is a U.S. environmental regulation implemented by the Environmental Protection Agency (EPA), aimed at regulating the production, import, use, and sale of chemical substances to prevent potential risks to human health and the environment. TSCA requires that all chemical substances manufactured or imported in the United States must be registered on the EPA's TSCA Inventory. If it is a new chemical substance, a Premanufacture Notice (PMN) must be submitted before production or import for EPA evaluation and approval. For certain high-concern chemicals, TSCA also stipulates more stringent control measures. Therefore, TSCA certification usually means that a chemical product or its components have been registered with the EPA and comply with all relevant TSCA requirements, allowing them to be safely used and sold in the U.S. market. For chemical manufacturers and importers, compliance with TSCA regulations is very important, as violating TSCA regulations may lead to legal liabilities and fines.