State of California AIR RESOURCES BOARD Tahoe Sands Motor Lodge Convention Center South Lake Tahoe, CA June 20, 1973 9:30 a.m. AGENDA 73-13-1 Approval of Minutes of May 16, 1973 Meeting. 73-13-2 Assembly-Line Testing. a. Report of Manufacturers' Test Results for the 3rd Production Quarter. b. Summary of Workshop. c. Public Hearing Concerning Proposed Changes to Assembly-Line Test Procedures for 1974 Model Year Vehicles. 73-13-3 Approval Standards and Test Procedures for Light-Duty Vehicles. a. Consideration of Future Vehicle Emission Standards. b. Public Hearing Concerning Proposed Changes to Standards and Test Procedures for 1975 and Subsequent Model Year Light-Duty Vehicles. 73-13-4 Public Hearing Concerning Proposed Restriction of Crankcase Certification. 73-13-5 Report on Progress of Vehicle Manufacturers in Meeting 1975 and 1976 Exhaust Emission Standards. 73-13-6 Report on Emissions from Vehicles Equipped with General Motors' Advanced Emission Control System. 73-13-7 Consideration of Retrofit Program for 1966-1970 Vehicles After October 1, 1973. 73-13-8 Other Business. 73-13-9 Remarks from Audience - End of Morning and Afternoon Sessions. ITEM NO.: 73-13-2a Report of End of Assembly-Line Test Results for the Third Production Quarter. RECOMMENDATIONS None. This is an informational item. SUMMARY The staff has reviewed the reports submitted by vehicle manufacturers on their third quarter's production. Table I shows those engine families that did not have an acceptable pass rate on an initial quality audit test. However, considering one retest without repair, all engine families have acceptable pass rates. Table II compares the quality audit test averages, for each engine family, for the second and third production quarters. Tables III and IV compares respectively, steady state and hot 7-mode inspection test control limit values for the first three production quarters. ITEM NO.: 73-13-2b Summary of Assembly-Line Testing Workshop. RECOMMENDATIONS None. (Informational item related to 73-13-2c). SUMMARY On May 31, 1973 the Air Resources Board conducted a workshop on assembly-line testing. The attached minutes summarize the results of that workshop. ITEM NO.: 73-13-2c Proposed Revisions to Assembly-Line Test Procedures. RECOMMENDATION Adopt Resolution 73-32. SUMMARY At its meeting on March 21, 1973, the Air Resources Board (ARB) adopted a policy statement that every vehicle at the time of delivery to the customer shall comply with the assembly-line emission standards. This change in emphasis of new vehicle testing by the ARB staff necessitates revisions to the assembly-line test procedures. Upon further review of 1973 quarterly reports, additional revisions were found to be necessary. Also, on May 31, 1973, an assembly-line testing workshop was held between the ARB and staff. Other revisions were discussed and suggested. A public hearing is scheduled for today's meeting. A copy of the Hearing Notice and Proposed Assembly-Line Test Procedures are attached, as well as the staff report outlining the reasons for each change. ITEM NO.: 73-13-3a Consideration of Future Vehicle Emission Standards. RECOMMENDATION 1. Adopt EPA Interim Standards for 1975 to clarify California's enforcement procedures for that year. 2. Determine need for NOx emission standards in 1976 models and if necessary seek waiver for California NOx standards. 3. Request clarification from EPA on 1975 emission standards for light-duty trucks in California; if necessary seek waiver for emission standards for such vehicles. DISCUSSION Recent actions by the Environmental Protection Agency have modified California's long-standing request for waiver of exemption with respect to its 1975 emission standards. The following table shows the standards at issue in grams per mile as established by converting the CVS-1 California standards to the equivalent CVS-II standards per Federal Register Vol. 36, No. 128, dated July 2, 1971. ITEM NO.: 73-13-3b Consideration of Proposed Exhaust Emission Standards and Test Procedures for 1975 and Subsequent Model Gasoline-Powered Motor Vehicles 6,000 Pounds Gross Vehicle Weight or Less. RECOMMENDATION Adopt Resolution 73-26. SUMMARY In order to make the California approval test procedure compatible with the Federal certification procedure for new motor vehicles, the format for new motor vehicles, the format for the California procedure is being changed to identify the unique California requirements as stated in the Health and Safety code and Title 13 of the California Administrative Code in addition to the applicable Federal Regulations. The format contained herein makes maximum use of the Environmental Protection Agency procedures by reference to the applicable Federal Register Vol. 37 No. 221, dated November 15, 1972. The CVS II test procedure used for California certification is the same as that used by the EPA which was initiated for 1975 and subsequent model year light-duty motor vehicles. These procedures are applicable to exhaust emissions from new light-duty vehicles first sold and registered in the State of California. Where specific differences exist between the Federal and California requirements, the California regulations are stated. ITEM NO.: 73-13-4 Public Hearing Concerning Proposed Restriction of Crankcase Certifications. RECOMMENDATION Adopt Resolution 73-31. SUMMARY Presently certified crankcase emission control systems are open ended; that is, there is no model year limit to their installations on 1955 and subsequent model year vehicles. It has been determined that many of the presently certified crankcase emission control systems and replacement valves adversely affect the performance of the emission control systems on 1968 and later model year vehicles. Adoption of Resolution 73-31 would limit the certification of these systems and valves to 1955 through 1967 model year vehicles. Crankcase emission control systems and positive crankcase ventilation replacement valves for 1968 and later model year vehicles would be regulated in accordance with the "Policy on Replacement Parts" adopted by the Board on May 16, 1973. ITEM NO.: 73-13-5 Report on Progress of Vehicle Manufacturers in Meeting 1975 and 1976 Model Year Exhaust Emission Standards. RECOMMENDATION None. This is an informational report. DISCUSSION The attached 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 persons 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 to be filed with the Governor and Legislature as soon after each quarter as possible. ITEM NO.: 73-13-6 Report on Vehicles Equipped with GM's Advanced Emission Control System. RECOMMENDATION None. This is an informational item. SUMMARY Arrangements have been made between the State of California and General Motors (GM) to lease 50 cars designed to meet the 1975-1976 emission standards. The first 13 vehicles which were designed to meet 1975 standards have been received and have been in test since November 1972. The 13 vehicles show little if any deterioration for the approximately 9500 miles they have been run and are easily meeting the HC and CO 1975 standards. They do not meet the California 1975 emission standard for NOx but it should be noted that these first 13 vehicles do not have special (advanced) controls for NOx. Some of the 50 vehicles to be received later will have special devices for low NOx emission control. Aldehyde emissions and reactivity were measured and found to be lower on these vehicles than on earlier cards not equipped with catalytic converters. ITEM NO.: 73-13-7 Consideration of Retrofit Program for 1966-1970 Vehicles after October 1, 1973. RECOMMENDATION Assuming the diagnostic center data continue to be considered valid, commence administrative hearings to rescind accreditation of devices which include a large amount of spark retard, adopt proposed installation schedule limiting installation to specific air basins; and seek legislation to limit the program to these air basins and to give the ARB the authority to require rapid (license plate) installation, in its discretion. SUMMARY Action of the Board June 7, suspending installation of NOx devices, left several questions unresolved. This report seeks to bring these issues into focus and contains recommended action on each. ITEM NO.: 73-13-8a Accreditation of NOx Exhaust Emission Control Devices. RECOMMENDATION Adoption of Resolutions 73-16-A and 73-4-A. SUMMARY At the may 16, 1973 meeting, the Board adopted motions accrediting the Air Quality Products Inc. And the Contignitron Company and Motors Inc. Retrofit exhaust devices for 1966-70 vehicles. The adoption of the attached Resolutions will confirm the Board's action for record purposes.