ee Guidance on Development and Submission of Infrastructure State Implementation Plans for National Ambient Air Quality Standards
All states must submit state implementation plans to show they have the basic air quality management program components in place to implement a new or revised NAAQS, as specified in Clean Air Act section 110. These plans are often called "infrastructure SIPs." See the following document, "Guidance on Development and Submission of Infrastructure State Implementation Plans for National Ambient Air Quality Standards."