State of California AIR RESOURCES BOARD State Office Building 455 Golden Gate Avenue, Room 1194 San Francisco, CA July 18, 1973 9:30 a.m. AGENDA 73-17-1 Approval of Minutes of June 7 and June 20, Meeting. 73-17-2 Report of Staff Action to Implement Board Resolution Concerning Re-Examination of Accredited NOx Devices. (A) Proposed Revision to NOx Test Procedure. (B) Report of Emissions and Control Committee Concerning Adverse Effects. Consideration of Proposed Modifications of Accredited NOx Devices and Requests to Drop Administrative Hearing. 1. STP Corporation 2. Carter Carburetor 3. Air Quality Products, Inc. (a) Kar-Kit (b) Pure Power 73-17-3 Status Report on Control of Vehicle Refueling Emissions. 73-17-4 Status Report on Atmospheric Chemistry Studies. 73-17-5 Report on Emissions from Vehicles Equipped with UPO's Catalytic Device. 73-17-6 Other Business. 73-17-7 Remarks from Audience - End of Morning and Afternoon Sessions. ITEM NO.: 73-17-2 Report of Staff Action to Implementation Board Decision Concerning Re-Examination of Accredited NOx Control Devices. RECOMMENDATION Adopt proposed restriction of basic timing spark retard if Board's criterion on qualifying NOx control is to be met. SUMMARY The attached staff report describes actions taken by the staff to implement Resolution 73-27-C. The effect of Resolution 73-27-c on each accredited device is discussed. Data concerning the effect of spark retard beyond VSAD on exhaust gas temperature, fuel consumption, and NOx reduction are presented. A staff proposal to restrict the amount of spark retard of basic timing is also presented. ITEM NO.: 73-17-3 Status Report on Control of Vehicle Refueling Emissions. RECOMMENDATION None. This is a staff status report. SUMMARY Four air pollution control districts have adopted rules governing vapor losses during service station and/or vehicle tank refueling and an assembly bill of a similar nature has been introduced in the legislature and recommended for approval by the staff. A number of systems have been built in these districts and several studies instituted in order to explore cost-effectiveness and feasibility of vapor recovery systems. This report describes the legislation, engineering systems and the various efforts and studies to control organic vapors during the refueling process. ITEM NO.: 73-17-4 Status Report on Atmospheric Studies. The 1973 Los Angeles Reactive Pollution Study. RECOMMENDATION None. This is an information report. INTRODUCTION In 1968-69 the Atmospheric Studies Section of the Air Resources Board participated with the Coordinating Research Council Measurements of Atmospheric Pollutants in Urban Areas Project Group (CRC-CAPA-7) in conducting several studies of the Los Angeles atmosphere. These studies indicated a need for an effective computer model of the atmosphere which gives realistic and practical answers to pressing questions of control strategy alternatives as well as choices for urban planning and development. The model would not be an end in itself but should be regarded as one of the tools to be used in making decisions affecting future air quality on an urban and regional scale. ITEM NO.: 73-17-6 Legislation. SUMMARY This is a status report on air pollution control legislation. About 115 bills dealing directly or indirectly with air pollution have been introduced. The important bills are summarized below, as they stood on June 29, the beginning of the Legislature's July recess. RECOMMENDATION None.