Iterative Process for Reasonable Further Progress Toward Attainment

1. At predetermined periods after implementation (i.e., milestone years), evaluate air quality against NAAQS 3 Determine reason; is a mid-course correction needed? Redesignation/ maintenance plan Attainment achieved? 6 • Determine if area met the RFP targets: • administrative test • emission reduction test • (+ = pass test) • (- = fail test) Assess available air quality indicators -- are they consistent with RFP test results? Determine reason; catch up on emission reductions or trigger contingency 4d Catch up on implementation; trigger contingency; penalties 4c • SIP Development • model to identify emission reductions needed for each pollutant • identify air quality indicators that can be used to help select • emission reductions targets • determine control strategy options • consider technical feasibility, cost-effectiveness, public acceptance • select optimal strategy and complete attainment demonstration • identify RFP targets for administrative/emission reduction tests • develop contingency measures (as available) Pre-SIP RFP Activities Iterative Process for Reasonable Further Progress Toward Attainment SIP Implementation 2 1 Yes No Yes No + administrative + emission reduction Continue implementation; rewards? 4a Yes No - administrative + emission reduction 4 Catch up on implementation 4b 5 + administrative - emission reduction - administrative - emission reduction 7/16/97