AIR RESOURCES BOARDVENTURA COUNTY APCD RULE EVALUATION FORM - Page 1I. GENERAL INFORMATIONDistrict: Ventura County APCDRule No.: 74.18Date / Amended: November 11, 2008Rule Title: Motor Vehicle and Mobile Equipment Coating OperationsDate Submitted to ARB: December 8, 2008If an Amended Rule, Date Last Amended: September 10, 1996Is the Rule Intended to be Sent to the U.S. EPA as a SIP Revision? (X) Yes ( ) NoIf NO, do not complete remainder of form.District Contact: Stan CowenPhone No.: 805/645-1408Narrative Summary of New Rule or Rule Changes: ( ) New Rule (X) Amended Rule 74.18Amended Rule 74.18 incorporates all the new ROC limits and coating categories from ARB’s 2005 Suggested Control Measure. Thisincludes new ROC limits for coatings and cleaning solvents. Recordkeeping requirements have been changed from daily to monthlyrecordsbecause of the new ROC limits for color coatings. A new Prohibition of Possession was added to increase the rule’s enforceability. A newlimited-use exemption was adopted to allow up to 130 pounds of ROC per year per shop of noncomplying cleaners once the new 25 g/l limitfor cleaners becomes effective on January 1, 2010.Pollutant(s) Regulated by the Rule (Circle): ROGNOx SO2 PM10 COTACII. EFFECT ON EMISSIONSComplete this section ONLY for rules that, when implemented, will result in quantifiable changes in emission. Attach reference(s) for emission factor(s) and otherinformation. Attach calculation sheet showing how the emissions information provided below was determined. See staff report Appendix A for emission calculations.Net Effect on Emissions: ( ) Increase (X) Decrease ( ) N/AEmission Reduction Commitment in SIP (Control Measure R-311) for this source category: 0.23 tons per day from the 2007 AQMP.Thestaff report and Board Letter cites emission reductions of 0.2tons per day, which omits the 0.03 tons per day emission reductions expectedfrom lower ROC cleaners even allowing for the potential loss of 0.02 tons per day from the new low-use exemption for surface prep cleaners.Inventory Year Used to Calculate Changes in Emissions: 2002Area Affected: CountyFuture Year Control Profile Estimate:YearTons/yearReductions2002 BaselineTons/yearSubject to RuleControlLevelPercentControlControlLevelControl Factor2009 66/168=0.39 * 100 = 39 %1.00- 0.39=0.61201018/168=0.11 * 100 = 11 %1.00- 0.11=0.89The 2002 baseline emissions were based on ARB’s statewide 2002 survey in California.AIR RESOURCES BOARDVENTURA COUNTY APCD RULE EVALUATION FORM - Page 2III. SOURCES/ATTAINMENT STATUSDistrict is: ( ) Attainment (X) Nonattainment ( ) SplitApproximate Total Number of Small (<100 TPY) Sources Controlled by Rule: 130Percent in Nonattainment Area: 100 %Number of Large (>100 TPY) Sources Controlled: NonePercent in Nonattainment Area: Not ApplicableIV. EMISSION REDUCTION TECHNOLOGYDoes the Rule Include Emission Limits that are Continuous? Yes,the coating limits are in the form of grams of ROC per liter of coating lesswater and less exempt organic compounds. The cleaning solvent limits are in the form of grams of ROC per liter of material.V. OTHER REQUIREMENTSThe Rule Contains:Emission Limits in Section(s): Section BWork Practice Standards: Section BRecordkeeping Requirements in Section(s): DReporting Requirements in Section(s): Not ApplicableVI. IMPACT ON AIR QUALITY PLAN(X) No Impact ( ) Impacts RFP ( ) Impacts attainmentDiscussion: Amendments to Rule 74.18 will reduce emissions ofreactive organic compounds for Ventura County’s efforts towardachieving attainment of the ozone standard. Therefore, RFP will be furthered by amendments to Rule 74.18.