8hourregions

8-Hour Ozone and PM 2.5 NAAQS Implementation: 

8-Hour Ozone and PM 2.5 NAAQS Implementation

Slide2: 

CHRONOLOGY 7/18/97 -- Final NAAQS for O3 & PM published Nov 1998 – Draft Planning Guidance May 1999 – US Court of Appeals in DC ruled against NAAQS and implementation approach Feb. 2001 – US Supreme Court Upheld NAAQS Ruled against EPA implementation approach March 2002 –US Court of Appeals in DC upheld NAAQS Next step: propose guidance May 2003

Schedule to Implement Eight Hour Ozone Standard : 

Schedule to Implement Eight Hour Ozone Standard

Slide4: 

Schedule To Implement PM2.5 • September 2003 EPA proposes implementation rule December 2003 EPA proposes PM2.5 transport rule • February 2004 States recommend nonattainment areas September 2004 Final implementation rule • December 2004 EPA designates nonattainment areas • March - June 2005 Final PM2.5 transport rule • December 2007 States submit implementation plans • December 2009-2014 Range of Attainment Dates

Harmonization of 8-hr O3, PM2.5, & RH SIPs: 

Harmonization of 8-hr O3, PM2.5, & RH SIPs End of 2003—Finalize O3 NAAQS implementation rule 2003-2004--propose and finalize PM2.5 implementation rule 2004 --Designate nonattainment and attainment areas under 8-hr ozone standard (after receiving recommendations from states). Note: The statutory deadline for 8-hour ozone designations has passed, and EPA has negotiated settlement agreement on designations. 2004--Designate nonattainment and attainment areas under PM2.5 standard (after receiving recommendations from states) 2007--States submit plans for implementing ozone and PM2.5 NAAQS (including state rules for emission reductions)

Slide8: 

Topics in the rule include…. Area classification approaches …what subpart to use Attainment dates Transition from 1-hr to 8-hr NAAQS Anti-backsliding Flexibility vs mandatory controls Ozone transport issues Modeling & attainment demonstrations Reasonable further progress requirements Reasonably available control measures/technology Conformity New Source Review Optimizing for O3 and PM Tribal issues Timing of designations and classifications

Ozone Transport: 

Ozone Transport Additional emission reductions needed to address transport would be imposed through a separate rule EPA plans to investigate the extent, severity and sources of interstate transport after the 1998 NOx SIP call is implemented. Anticipate requiring any additional required measures as part of a planned rule to reduce interstate transport that contributes to high PM2.5. This would address interstate transport “up front” Would enable States in preparing SIPs to account for the extent of any additional interstate transport controls

REASONABLE FURTHER PROGRESS (RFP): 

REASONABLE FURTHER PROGRESS (RFP) RFP is the CAA requirement to phase in emission reductions from the time of SIP development to the attainment date. Subpart 1 contains a more general requirement “. . . annual incremental reductions in emissions . . . for the purpose of ensuring attainment . . . by the applicable date.” Subpart 2, provides much more specificity regarding the base year emission inventory upon which reasonable further progress was to be planned for and implemented, the increments of emission reductions required over which time periods, and the process for determining whether the RFP milestones were achieved.

REASONABLE FURTHER PROGRESS : 

REASONABLE FURTHER PROGRESS FR covers several issues; Requirement for 15% VOC reductions in first 6 years Baseline year for starting (2002) Moderate areas—timing of RFP reductions relative to the attainment date Timing of submission of the RFP plan CAA requirements for creditability of control measures Subpart 1 RFP Cases where 8-hr NA area encompasses & is larger than current 1-hr NA area Use of RFP for addressing transport

Ensuring an Optimal Mix of Controls for Ozone, PM2.5, and Regional Haze?: 

Ensuring an Optimal Mix of Controls for Ozone, PM2.5, and Regional Haze? Ozone precursors also affect PM2.5 & regional haze Current draft modeling/attainment demo guidance encourages States to integrate ozone control strategies with strategies designed later to attain the NAAQS for PM2.5 and to meet reasonable progress goals for regional haze

Future Emission Reductions : 

Future Emission Reductions Gas Cans 1/03 NOx SIP Call in the Northeast 5/03 NOx SIP Call in the East 5/04 Consumer Products 1/05 Tier II Vehicles 2004 Low sulfur gasoline 2005 Low sulfur diesel fuel 2006 Cleaner diesel engines 2007 Off-Road engine standards 2007-14

Future Emission Reductions(Planned): 

Future Emission Reductions (Planned) AIM 1/05 Small NOx and SIP Phase II 5/05 I/M Improvements