Indiana establishes clean air goals and implements plans to protect air quality in accordance with federal Clean Air Act (CAA) requirements. Indiana’s state implementation plan (SIP) contains details concerning programs that may affect you
- Measures to implement National Ambient Air Quality Standards (NAAQS), established by United States Environmental Protection Agency for six common (criteria) pollutants in the outdoor air including carbon monoxide, lead , nitrogen dioxide, ozone, particulate matter, and sulfur dioxide. Primary standards are designed to protect the public health of everyone, including vulnerable groups such as people with asthma, the elderly, and very young children. Secondary standards are designed to protect public welfare by preventing harm to crops, vegetation, animals, buildings and monuments, and preventing decreased visibility.
- Emissions restrictions, air pollution control requirements, and incentives for businesses and industry to explore innovative technology and pollution prevention initiatives.
- More stringent federal emission limitations and/or air permit requirements for certain large new or expanding facilities in “nonattainment areas,” which are areas that do not meet one or more NAAQS.