CONCLUSIONS
Phase II acid rain reductions (Title IV), Nox SIP call and regional haze rules mandate severe emissions reductions for ozone precursors. Effects of reductions need to be accounted for in cumulative impact studies
AQRV in Class I areas may still be compromised despite large reductions in Nox, SO2 emissions
Contributions of mobile sources in Nox emissions cumulative impacts is under represented
Not scientifically justified to single out power generation sector only, need to include all source sectors