State of California AIR RESOURCES BOARD San Diego State Office Building 1350 Front Street Room B-109 San Diego, CA October 17, 1973 9:30 a.m. AGENDA 73-23-1 Approval of Minutes of September 19, 1973 Meeting. 73-23-2 Report of Manufacturers' Assembly-Line Test Results for the 4th Production Quarter. 73-23-3 Summary of Enforcement Workshop. 73-23-4 2nd Quarterly Report on Progress of Vehicle Manufacturers in Meeting the 1975 and 1976 Exhaust Emission Standards. 73-23-5 Report on Responses to Request for Information Concerning: A. Effects of Catalytic Systems on Emissions. B. Replacing Lead Additives as Antiknock Compounds. C. Cost of Catalytic Systems to California Motorists in 1975. 73-23-6 Other Business. 73-23-7 Remarks from Audience - End of Morning and Afternoon Sessions. ITEM NO.: 73-23-2 Report of Manufacturers' Assembly-Line Test Results for the Fourth Production Quarter. RECOMMENDATION None. This is an informational item. SUMMARY The staff has reviewed the reports submitted by vehicle manufacturers on their fourth quarter's production. All engine families had acceptable pass rates on an initial quality audit test or one retest without repair. One company, Volvo, had insufficient sample sizes for two engine families. Table I compares the quality audit test averages for each engine family for the second, third, and fourth production quarters. Tables II and III compare respectively steady-state and hot 7-mode inspection test control limit values for the four production quarters. ITEM NO.: 73-23-3 Summary of Vehicle Emission Control Enforcement Workshop. RECOMMENDATION None (informational item). SUMMARY On August 16, 1973 the Air Resources Board conducted a workshop pertaining to enforcement of regulations concerning emission control. The attached report summarizes the staff recommendations and the board's decisions at that session. ITEM NO.: 73-23-4 Second Quarterly Report on Progress of Vehicle Manufacturers in Meeting 1975 and 1976 Model Year Exhaust Emission Standards. RECOMMENDATION None. This is an informational report. SUMMARY This second quarterly report is submitted pursuant to the requirements of Division 26, Chapter 4, Article 4, Sections 39158 and 39159 of the Health and Safety Code (Senate Bill 382). Section 39158 requires, beginning April 1, 1973, and quarterly thereafter, any person manufacturing new motor vehicles for sale in this State to file with the Air Resources Board a report as to such person's efforts and progress in meeting specified Federal standards for emission of hydrocarbons, carbon monoxide and oxides of nitrogen. Section 39158 also requires that a summary of the vehicle manufacturers' reports be filed with the Governor and Legislature as soon after each quarter as possible. The manufacturers who address themselves to the 1975 Federal standards are indicating changes in design which will not involve a catalytic reactor for the conventional spark ignition reciprocating engine. With more stringent 1975 standards for California, the manufacturers will continue the catalytic approach for the conventional engines. The major vehicle manufacturers confined their second quarterly reports mainly to requests for suspension of the Federal 1976 emission standards because the technology required to meet the 1976 emission standards (0.4 gm/mi NOx) does not presently exist. ITEM NO.: 73-23-5A Report of Vehicle Manufacturers' Responses to Request for Information Concerning Effects of Catalytic Systems on Emissions. RECOMMENDATION This is an informational report. SUMMARY On June 25, 1973, the Executive Officer sent a letter to the vehicle manufacturers requesting information concerning the effects of 1975 model-year catalytic systems on exhaust and particulate emissions. The information is required to evaluate catalytic systems for the potential discharge of harmful emissions into the atmosphere. With the exception of General Motors, few manufacturers supplied much information on the emissions from catalysts. Concern has been expressed on the possible conversion of sulfur in gasoline to SO3 and the subsequent formation of H2SO. EPA is conducting studies on this effect as well as the toxicity of the platinum groups method. The attached report summarizes the responses received to date by the Air Resources Board from 11 of the 31 contacted manufacturers. The items discussed were: 1. Composition of catalyst and support. 2. Quantity of exhaust emissions by category as a function of accumulated mileage. 3. Change in exhaust emissions as a function of amount of fuel additives. 4. Particulate emissions as a function of mileage accumulation. 5. Toxicity information on catalysts and supports. ITEM NO.: 73-23-6A Air Quality Products, "Kar-Kit" Oxides of Nitrogen Control Device. RECOMMENDATION Confirm the adoption of Resolution 73-16-B. SUMMARY Resolution 73-16-B (Attached) approving modifications to the accredited AQP Kar-Kit NOx exhaust emission control device was approved by mail ballot and requires confirmation.