Environmental and hazardous substance issues are significant problems that impact health, society, climate change, and human well-being. Pollution, which poses a threat to the lives of citizens, has been exacerbated by issues such as PM 2.5 dust, air pollution, waste, sewage, and hazardous waste. These environmental problems have made it increasingly clear, both globally and in Thailand, that environmental resource management and environmental protection are crucial. Professionals involved in this area must possess the necessary skills, knowledge, and capabilities to ensure safety and prevent the spread of pollution into the environment. Therefore, the Occupational Standards and Professional Qualification for the Environmental and Hazardous Substances Profession are essential. They ensure that workers or professionals in this field possess the skills and competencies necessary for effective performance, thereby guaranteeing expertise in the profession, enhancing the value of the work and people, and contributing to the well-being of the country. For more information on the Occupational Standards for the Environmental and Hazardous Substances Profession, visit: http://tpqi-net.tpqi.go.th/home/occ/industrialInfo/EVM