The main environmental regulations related to ceramic fiber production and use vary by country but generally include regulations on emissions, waste disposal, and worker safety. In the United States, the Environmental Protection Agency (EPA) enforces regulations such as the Clean Air Act, which controls air emissions, and the Resource Conservation and Recovery Act (RCRA), which governs the disposal of hazardous waste. The Occupational Safety and Health Administration (OSHA) also sets standards for worker exposure to ceramic fibers to prevent health risks. In the European Union, regulations like the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) and the European Emissions Trading System (EU ETS) play significant roles. These regulations aim to limit the environmental impact of ceramic fiber production, ensure safe handling and disposal, and protect worker health.