State of California AIR RESOURCES BOARD Junipero Serra State Building 107 S. Broadway, Room 1138 Los Angeles, CA December 20, 1972 9:30 a.m. AGENDA 1. Approval of Minutes of December 6, 1972 Meeting. 2. Consideration of Assembly-Line Test Results for the 1st Quarter Production of 1973 Model Year Vehicles. 3. Public Hearing Concerning Proposed Changes to Assembly-Line Test Procedures. 4. Correspondence to Industry Concerning the Surveillance of New Vehicles for Compliance with End of Assembly-Line Requirements. 5. Consideration of Applications for Accreditation of NOx Control Devices of 1966-1970 Model Vehicles. 6. Comparison of Quality Audit Data and Certification Approval Data for 1972 Model Vehicles. 7. Exemptions of 1966-1970 Model Year Vehicles from Required Oxides of Nitrogen Exhaust Emission Control Devices. 8. Other Business a. Report on Public Utilities Commission Hearing on Proposed Combined Cycle Long Beach Power Plant. b. Report of Legislation Committee: South Coast Basin Control Measures. c. Other 9. Remarks from the Audience - End of Morning and Afternoon Session. ITEM Informational Item Concerning Assembly-Line Test Results for the First Quarter Production of 1973 Model Year Vehicles. RECOMMENDATION No action needed. This item if related to Item No. 3 in agenda. SUMMARY The staff has reviewed the reports submitted by vehicle manufacturers concerning their first quarter's production. Table I, II, III and IV of the attached Staff Report show those manufacturers that did not test an adequate sample of quarterly production vehicles and/or had more than 10% of the quality audit sample exceed the approval standard for a given compound. Many reporting discrepancies and deficiencies in the test procedure were noted. Those manufacturers whose reports indicated discrepancies are being asked to correct them. The staff has proposed changes to correct the deficiencies noted in the test procedures. ITEM Proposed Revisions to Assembly-Line Test Procedures. RECOMMENDATIONS Adopt Resolution 71-104D. SUMMARY While reviewing the 1972 model year quarterly reports and first quarterly reports for 1973 model year, certain deficiencies were noted in current assembly-line test procedures. The revisions, as presented to the Air Resources Board at its October 25, 1972 and November 21, 1972 meetings, were intended to correct these deficiencies. At the Public Hearing on November 21, 1972, industry representatives presented statements relative to these changes. Taking into account these statements. It was found necessary to make additional changes. All of the proposed changes since November 21 are double underlined in the proposed procedures. Since the November 21 hearing, the comments received by the staff were merely reiterations of earlier testimony. A continuation of the 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's report outlining the reasons for each change. ITEM STP Corporation's Application for Accreditation of an NOx Control Device for 1966-1970 Model Vehicles. RECOMMENDATION Adopt Resolution 72-123. SUMMARY STP Corporation has submitted an application for accreditation of its device for NOx exhaust emission control for 1966 through 1970 model vehicles in classes (a) through (f). The test data and other information submitted show that the device has satisfied the test procedure requirements for vehicles in engine size classes (b) through (f), (over 140 cubic inches). The data submitted did not satisfy the requirements for class (a) vehicles and therefore the accreditation of the device for vehicles in this class should be deferred. ITEM Informational Report Concerning a Comparison of Average Emissions from 1972 model year Assembly Line Quality Audit with Emissions from Approval Fleet Vehicles. RECOMMENDATION None. SUMMARY Average quality audit emissions data from 1972 model year production have been compared with manufacturers approval fleet 4,000 mile emissions data. Scatter diagrams were plotted. Those diagrams indicate that 4,000 mile emissions data are not a good predictor of quality audit data. ITEM Proposed Exemptions of 1966 through 1970 Model-Year Vehicles from Required Oxides of Nitrogen Control Devices. RECOMMENDATION Comment on the proposed Executive Order listing the general vehicle exemptions. SUMMARY Pursuant to the provisions of Sections 39177 and 39177.2 of the Health and Safety Code, a study was made of the 1966 through 1970 model-year vehicle population to determine the vehicles which should be exempted from the requirement of installing an oxides of nitrogen exhaust emission control device. The bases for the exemptions, as stipulated in the Health and Safety Code, are as follows: 1. Vehicles for which there is no device available or intended. 2. Vehicles whose oxides of nitrogen emissions already meet the standard. 3. Vehicles that are equipped with an oxides of nitrogen control device and can meet the oxides of nitrogen standard. Before preparing the exemption list, the Executive Officer requested the vehicle manufacturers to identify those vehicles which meet the oxides of nitrogen standard and those vehicles that should be exempted from retrofit for mechanical or control system design reasons. Comments were made concerning the vacuum spark advance disconnect and the Echlin system. Those comments are included in the attached staff report. The staff's recommendation for vehicle exemptions are shown in the attached report and proposed Executive Order.