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Cynthia Loomis co-developer of the EMS-95 emissions system, has substantial experience using all of the major emissions modeling systems, including SMOKE, EMS-2001, EMS-95, EMS-95/PM, GEMAP, EPS and FREDS. Most recently she developed the EMS-2001/MOBILE6.2 modeling package for the development of on-road motor vehicle emissions for particulate and photochemical modeling. She is currently developing particulate inventories for national scale modeling, utilizing the EMS-2001/MOBILE6.2 modeling system. She is also involved in the development and QA of SIP quality inventories for particulate and photochemical modeling in California. She has employed and evaluated the emissions modeling procedures used in SMOKE, Models-3/CMAQ, and the EMS-95 systems. (resume)

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Dennis McNally is a nationally recognized expert in regional meteorological and photochemical modeling. He was on the original development team of the Regional Acid Deposition Model (RADM) at the National Center for Atmospheric Research (NCAR). Over the past 15 years, Mr. McNally has been a central participant in over 50 studies involving the application of state-of-science meteorological and photochemical modeling systems. His experience ranges from chemical mechanism development to modeling support of regulatory issues. Mr. McNally has extensive experience with virtually all contemporary urban- and regional-scale photochemical models including CAMx, CALGRID, UAM-V/UAM-IV, ROM2.2, URM, MAQSIP, SAQM and Models-3/CMAQ. (resume)

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Gregory Stella has substantial experience in the development, evaluation, and modeling of national policy options for the projection and control of ozone and PM precursor emission pollutants. His broad experience in ozone SIP nonattainment analysis includes evaluating alternative urban- and regional-scale VOC and NOx control measures and control program designs. While at EPA's Office of Air Quality Planning and Standards he managed and prepared the emission inventories, control strategies, and associated temporal, spatial, and speciation data for the Regional Transport NOx SIP Call, Section 126 rulemaking, Tier-2 tailpipe standards, 1-hour attainment demonstrations, Heavy-Duty Diesel Engine standards, Multi-Pollutant legislation, Clear Skies Analyses, and US/Canadian Air Quality Agreements. He has considerable experience in facilitating coordination among Federal, State, local, international, Tribal, and private workgroups, modeling centers, and stakeholders in the development, QA, and use of emissions inventories for regulatory policy making. Mr. Stella is a recent recipient of two U.S. EPA Gold Medals, for the NOx SIP Call Rulemaking (1999) and the Tier-2 Tailpipe Standard (2001) (resume)

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James Wilkinson co-developer of the EMS-95 emissions system, has participated in a large number of ozone, acid deposition, and/or visibility/regional haze studies throughout the U.S. As part of his Ph.D. studies, Mr. Wilkinson was SAMI's lead emissions modeler and active in the SAMI ozone/PM modeling as well. He was responsible for the preparing the SAMI air quality model's emissions inputs including spatially and temporally resolved, as well as speciated VOCs and size resolved aerosol precursors for NH3, SO2, SO4, NO3, EC, OC, and crustals (Na, Ca, Mg, and K), onroad and nonroad mobile source emissions estimates. Mr. Wilkinson has direct expertise with a broad range of emissions models including MOBILE6, FIRE, EPS2.0, and SMOKE. (resume)

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Andra McNally specializes in project management, contract and business administration for the business office of Alpine Geophysics. (resume)