STATE IMPLEMENTATION PLANS (SIP)
General Information
This page contains the links to various state implementation plan (SIP) packages for recent ozone, and fine particulate (PM2.5), and Regional Haze submittals. At a later date, this page will be expanded to provide links to historic SIP submittals for each of the criteria pollutants.
SIP actions can take several forms, from the development of plans which will demonstrate how areas not yet attaining national ambient air quality standards (NAAQS) will attain the NAAQS ("Attainment Demonstration" to plans which provide for how an area being redesignated to attainment from nonattainment will maintain acceptable air quality ("Redesignation Request"). SIPs packages or revisions also are prepared and submitted to U.S. EPA to modify, revise or update existing plans. Additional SIP related documents are also generated when a new or revised standard is promulgated by U.S. EPA. For example, Ohio EPA submits a "Recommended Designations" document with proposed nonattainment boundaries.
Much of the SIP related documents are available for public comment. When Ohio EPA is accepting comments related to the SIP program a public notice is provided to Ohio's major newspapers and this website will be updated with public comment and hearing information.
A summary of U.S. EPA's current National Ambient Air Quality Standards can be found on their website. The only pollutants for which there are portions of Ohio designated nonattainment are PM 2.5 (annual and 24-hour) and lead. The entire state is attainment for ozone, sulfur dioxide, nitrogen dioxide, and carbon monoxide.
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For questions or comments concerning this page, contact Jennifer Dines