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Infrastructure SIP Element Reports

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The Clean Air Act requires states to submit state implementation plans (SIPs) that implement, maintain, and enforce a new or revised national ambient air quality standard (NAAQS) within 3 years of EPA issuing the standard. These SIP revisions must address a number of basic requirements, including:

Guidance on Development and Submission of Infrastructure State Implementation Plans for National Ambient Air Quality Standards

National and State SIP Status Reports are Available for Infrastructure Elements

State SIP infrastructure status reports provide information about the status of a state's submittals, and EPA actions on the submittals, to meet the SIP infrastructure requirements for each pollutant.

To view the state status reports: Click on the state SIP infrastructure status reports link and select a state. This will display a report of the state's infrastructure SIP requirements by pollutant, along with current requirement status information. Pollutant links at the top of the page allow jumping to that pollutant's section of the page.

National SIP infrastructure status reports provide information about the status of state submittals and EPA actions on the submittals by SIP infrastructure requirement for all states.

To view the national status reports: Click on the national SIP infrastructure status reports link and select a pollutant. Next, select an infrastructure requirement for the pollutant. The national SIP infrastructure status report lists each state and the the selected SIP infrastructure requirement, along with the requirement deadlines and latest actions.

Federal Register Notice (FRN) citations in the national and state status reports are linked to the GPO website (when available).

Required Infrastructure Elements Tracked for Each State

The required elements tracked for each state are labeled in the report as:

Section 110(a)(2)(A) Emission limits and other control measures
Section 110(a)(2)(B) Ambient air quality monitoring/data system
Section 110(a)(2)(C) Program for enforcement of control measures
Section 110(a)(2)(D)(i) - I Prong 1: Interstate transport - significant contribution
Section 110(a)(2)(D)(i) - I Prong 2: Interstate transport - interfere with maintenance
Section 110(a)(2)(D)(i) - II Prong 3: Interstate transport - prevention of significant deterioration
Section 110(a)(2)(D)(i) - II Prong 4: Interstate transport - protect visibility
Section 110(a)(2)(D)(ii) - Interstate and international pollution abatement
Section 110(a)(2)(E) Adequate authority and resources
Section 110(a)(2)(F) Stationary source monitoring system
Section 110(a)(2)(G) Emergency power
Section 110(a)(2)(H) Future SIP revisions
Section 110(a)(2)(J) Consultation with government officials; Public notification; PSD and visibility protection
Section 110(a)(2)(K) Air quality modeling/data
Section 110(a)(2)(L) Permitting fees
Section 110(a)(2)(M) Consultation/participation by affected local entities

Certain SIP provisions are identified in Section 110(a)(2) but are not considered to be required infrastructure SIP elements. They are nonattainment-related provisions, which have different due dates for submission. Thus, reports of tracked infrastructure SIP elements intentionally omit the following: (i) Section 110(a)(2)(C) to the extent it refers to nonattainment NSR permit programs that are required under part D of the CAA; and (ii) Section 110(a)(2)(I), which pertains to the nonattainment planning requirements of part D of the CAA.

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