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Status of Nonattainment Area and Ozone Transport Region SIP Requirements

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The planning required for nonattainment areas is part of the Air Quality Management (AQM) process. This process relates air quality to emissions data in order to determine the reductions and control measures needed to meet the National Ambient Air Quality Standards (NAAQS). The AQM approach translates measured air quality problems into a regulatory clean air plan, or State Implementation Plan (SIP). The SIPs include control measures that "clean the air" and meet the NAAQS level by the area's attainment date.

The Clean Air Act (CAA) sets out specific requirements for a group of northeast states that make up the Ozone Transport Region (OTR). States in this region are required to submit a SIP and install a certain level of controls for the pollutants that form ozone, even if they meet the ozone standards.

The CAA contains specific requirements governing requirements for nonattainment areas and for all areas included in the OTR. For certain requirements, EPA issues regulatory interpretations of required SIP elements in the Code of Federal Regulations (CFR) part 51. EPA has also issued guidance in the form of "General Preambles" and through policy documents that can be found on the EPA website.

Some of the general acronyms used to describe the required SIP elements include:

National and State SIP Status Reports are Available for All Criteria Pollutants

The National and State SIP Status Reports include information reported for CO, Lead, Lead (2008), NO2, 1-Hour Ozone, 8-Hour Ozone (1997), PM-10, PM-2.5 (1997), PM-2.5 (2006), and SO2.

State SIP status reports provide information about the status of a state's submittals, and EPA actions on the submittals, to meet the SIP requirements for each criteria pollutant. The State SIP status reports are composed of a state area-level report which is linked to the state's SIP requirement report. The 8-hour Ozone section of each area report includes areas designated nonattainment in addition to state requirements in the OTR.

To view the state SIP status reports: Click on the "State SIP status reports" link above and select a state. This will display a report of the state's nonattainment areas by pollutant, along with current area status information. The NAAQS pollutant links at the top of the page allow jumping to that pollutant's section of the page. Area names in the list are linked to that area's section of the state SIP requirement report (when applicable) containing that state's areas, and their SIP requirement deadlines and latest actions.

National SIP status reports provide information about the status of state submittals and EPA actions on the submittals by a single SIP requirement for all applicable states. The National Status Reports are SIP requirement-level reports.

To view the national SIP status reports: Click on the "National SIP status reports" link above and select a pollutant. On the next screen, select a SIP requirement for the pollutant. The national SIP status report lists each state and the designated area(s) where the selected SIP requirement is applicable, along with the SIP 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).

The list of requirements for pollutants with multiple requirements are listed below.

The 8-Hour Ozone (2008) nonattainment areas that were designated nonattainment effective July 20, 2012 (77 FR 30088 and 77 FR 34221) are included in these reports. The SIP requirements for the 2008 Ozone nonattainment areas will be included in the reports when the Implementation rule is finalized. On June 6, 2013, the proposed SIP requirements for the 8-Hour Ozone (2008) NAAQS were published in the "Implementation of the 2008 National Ambient Air Quality Standards for Ozone: State Implementation Plan Requirements" (78 FR 34178).

Ozone Requirements for the 1997 8-hour Ozone Standard Nonattainment Areas and Ozone Transport Region

The required SIP elements tracked for the 1997 8-hr ozone standard are:

Ozone Attainment Demonstration (including emissions limits and other control measures adopted by the state)
RFP (VOC and NOX) for current classification
Emissions Inventory
Clean Fuels for Fleets
Contingency Measures (VOC and NOX)
Contingency Provisions for RFP Milestones
Emissions Statement
Enhanced Monitoring (PAMS)
I/M Basic
I/M Enhanced
Nonattainment NSR program for current classification
Stage II vehicle refueling vapor recovery or Equivalent
TCMs to Offset Growth
Severe/Extreme Area Fee Program (Section 185)
RACT Non-CTG VOC for Major Sources
RACT NOX for Major Sources
RACT VOC CTG Aerospace
RACT VOC CTG Bulk Gasoline Plants
RACT VOC CTG Equipment Leaks from Natural Gas/Gasoline Processing Plants
RACT VOC CTG Factory Surface Coating of Flat Wood Paneling
RACT VOC CTG Fugitive Emissions from Synthetic Organic Chemical Polymer and Resin Manufacturing Equipment
RACT VOC CTG Graphic Arts - Rotogravure and Flexography
RACT VOC CTG Large Petroleum Dry Cleaners
RACT VOC CTG Leaks from Gasoline Tank Trucks and Vapor Collection Systems
RACT VOC CTG Leaks from Petroleum Refinery Equipment
RACT VOC CTG Manufacture of High-Density Polyethylene, Polypropylene, and Polystyrene Resins
RACT VOC CTG Manufacture of Pneumatic Rubber Tires
RACT VOC CTG Manufacture of Synthesized Pharmaceutical Products
RACT VOC CTG Petroleum Liquid Storage in External Floating Roof Tanks
RACT VOC CTG Refinery Vacuum Producing Systems, Wastewater Separators, and Process Unit Turnarounds
RACT VOC CTG Shipbuilding/repair
RACT VOC CTG SOCMI Air Oxidation Processes
RACT VOC CTG SOCMI Distillation and Reactor Processes
RACT VOC CTG Solvent Metal Cleaning
RACT VOC CTG Stage I Vapor Control Systems - Gasoline Service Stations
RACT VOC CTG Storage of Petroleum Liquids in Fixed Roof Tanks
RACT VOC CTG Surface Coating for Insulation of Magnet Wire
RACT VOC CTG Surface Coating of Automobiles and Light-Duty Trucks
RACT VOC CTG Surface Coating of Cans
RACT VOC CTG Surface Coating of Coils
RACT VOC CTG Surface Coating of Fabrics
RACT VOC CTG Surface Coating of Large Appliances
RACT VOC CTG Surface Coating of Metal Furniture
RACT VOC CTG Surface Coating of Miscellaneous Metal Parts and Products
RACT VOC CTG Surface Coating of Paper
RACT VOC CTG Tank Truck Gasoline Loading Terminals
RACT VOC CTG Use of Cutback Asphalt
RACT VOC CTG Wood Furniture
RACT VOC CTG Flat Wood Paneling Coatings (2006)
RACT VOC CTG Flexible Packaging Printing Materials (2006)
RACT VOC CTG Industrial Cleaning Solvents (2006)
RACT VOC CTG Lithographic Printing Materials and Letterpress Printing Materials (2006)
RACT VOC CTG Large Appliance Coatings (2007)
RACT VOC CTG Metal Furniture Coatings (2007)
RACT VOC CTG Paper, Film, and Foil Coatings (2007)
RACT VOC CTG Miscellaneous Metal Products Coatings (2008)
RACT VOC CTG Plastic Parts Coatings (2008)
RACT VOC CTG Auto and Light-Duty Truck Assembly Coatings(2008)
RACT VOC CTG Fiberglass Boat Manufacturing Materials, and Miscellaneous (2008)
RACT VOC CTG Industrial Adhesives (2008)

PM2.5 Nonattainment Area Requirements

The required SIP elements tracked for PM2.5 nonattainment areas are:

PM2.5 Attainment Demonstration
PM2.5 Contingency Measures
PM2.5 Nonattainment Area NSR Program
PM2.5 RACM/RACT
PM2.5 RFP
Emissions Inventory


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