AIR RESOURCES BOARD 

VENTURA COUNTY APCD RULE EVALUATION FORM - Page 1 

 I. GENERAL INFORMATION  District: Ventura County APCD Rule No.: 74.18 Date / Amended: November 11, 2008

 Rule Title: Motor Vehicle and Mobile Equipment Coating Operations

 Date Submitted to ARB: December 8, 2008 If an Amended Rule, Date Last Amended: September 10, 

 Is the Rule Intended to be Sent to the U.S. EPA as a SIP Revision? (X) Yes ( ) No If NO, do not complete rem

 District Contact: Stan Cowen Phone No.: 805/645-1408  Narrative Summary of New Rule or Rule Changes: ( ) New Rule (X) Amended Rule 74.18 

Amended Rule 74.18 incorporates all the new ROC limits and coating categories from ARB’s 2005 Suggested Cincludes new ROC limits for coatings and cleaning solvents. Recordkeeping requirements have been changed frbecause of the new ROC limits for color coatings. A new Prohibition of Possession was added to increase the rulimited-use exemption was adopted to allow up to 130 pounds of ROC per year per shop of noncomplying cleanefor cleaners becomes effective on January 1, 2010.

Pollutant(s) Regulated by the Rule (Circle): ROG NOx 

 II. EFFECT ON EMISSIONS  Complete this section ONLY for rules that, when implemented, will result in quantifiable changes in emission. Attach reference(s) for  information. Attach calculation sheet showing how the emissions information provided below was determined. See staff report Appen Net Effect on Emissions: ( ) Increase (X) Decrease ( ) N/A  Emission Reduction Commitment in SIP (Control Measure R-311) for this source category: 0.23 tons per day fr

 staff report and Board Letter cites emission reductions of 0.2 tons per day, which omits the 0.03 tons per day em

 from lower ROC cleaners even allowing for the potential loss of 0.02 tons per day from the new low-use exempt

 Inventory Year Used to Calculate Changes in Emissions: 

 Future Y

Year 

Tons/year Reductions 

 2002 Baseline 

Tons/year 

Subject to Rule 

Control 

Level 

Percent 

Control 

Contr

Leve

2009 66 / 168 = 0.39 * 100 = 39 % 1.00 - 0.32010 18 / 168 = 0.11 * 100 = 11 % 1.00 - 0.1

The 2002 baseline emissions were based on ARB’s statewide 2002 survey in California. 
AIR RESOURCES BOARD 

VENTURA COUNTY APCD RULE EVALUATION FORM - Page 2 

 III. SOURCES/ATTAINMENT STATUS  District is: ( ) Attainment (X) Nonattainment ( ) Split  Approximate Total Number of Small (<100 TPY) Sources Controlled by Rule: 130 Percent in Nonattainment Area: 100 % Number of Large (>100 TPY) Sources Controlled: None Percent in Nonattainment Area: Not Applicable 

 IV. EMISSION REDUCTION TECHNOLOGY  Does the Rule Include Emission Limits that are Continuous? Yes, the coating limits are in the form of grams of 

water and less exempt organic compounds. The cleaning solvent limits are in the form of grams of ROC per liter 

 V. OTHER REQUIREMENTS  The Rule Contains:  Emission Limits in Section(s): Section B Work Practice Standards: Section B Recordkeeping Requirements in Section(s): D Reporting Requirements in Section(s): Not Applicable

 VI. IMPACT ON AIR QUALITY PLAN  (X) No Impact ( ) Impacts RFP ( ) Impacts attainment 

Discussion: Amendments to Rule 74.18 will reduce emissions of reactive organic compounds for Vent

achieving attainment of the ozone standard. Therefore, RFP will be furthered by amendm