The Illinois Environmental Protection Agency (IEPA) is a state agency responsible for protecting the environment and public health in Illinois. Established in 1970, the IEPA oversees various programs related to air quality, water quality, and waste management. Its mission is to ensure compliance with environmental laws and regulations while promoting sustainable practices. The agency works to monitor pollution levels, enforce environmental regulations, and provide education to the public about environmental issues. The IEPA also collaborates with local governments, businesses, and communities to develop strategies for reducing environmental impact and improving overall quality of life in the state.