State of California AIR RESOURCES BOARD Junipero Serra Building 107 S. Broadway Room 1138 Los Angeles, CA October 30, 1973 9:30 a.m. TENTATIVE AGENDA 73-24-1 Approval of Minutes of September 18 and September 19, 1973 Meetings. 73-24-2 Public Hearing - 1966-70 Light Duty NOx Exhaust Emission Control Device Installation Schedule. 73-24-3 Public Hearing - Exhaust Emission Standards for 1975 Light Duty Vehicles. 73-24-4 Remarks from Audience. ________________________ After the meeting, the Board will meet in a workshop with its staff to discuss the status of exhaust emission standards for 1975 heavy duty vehicles. ITEM NO.: 73-24-2 Public hearing - 1966-1970 light-duty NOx exhaust emission control device installation schedule. SUMMARY The Air Resources Board adopted, under emergency regulations, a schedule for the mandatory installation of NOx devices on all 1966-1970 model-year light-duty vehicles. The schedule requires that, beginning on January 1, 1974, NOx devices be installed on vehicles showing #1 as the last digit of the license plate number. Installations for vehicles with plate numbers showing #2 as the last digit start in February, etc. Public notice for the emergency regulations has been given, with October 30, 1973 set as the date to confirm, amend or repeal the adopted NOx device installation schedule. This report includes a summary of the public responses received at the time of this report writing. ITEM NO.: 73-24-3 Public hearing - exhaust emission standards for 1975 light-duty vehicles. SUMMARY EPA adopted special standards for California for 1975 passenger cars in order to compel the use of catalysts. The standards are unnecessarily stringent for CO, and are a relaxation of California's NOx standard. The Board adopted these EPA standards by emergency regulation on June 20, 1973. This public hearing is to consider confirming the emergency action. RECOMMENDATION Allow the emergency adoption of EPA's 1975 California light-duty vehicle exhaust emission standards lapse, thereby reinstating ARB's 1975 standards. WORKSHOP TABLE OF CONTENTS 1. Background 2. Progress and problems 3. Presentation by California Trucking Association 4. Cost effectiveness APPENDIX Appendix I Copies of TAC Reports to the Board in 1970. Appendix II Letter to J.A. Maga from D.A. Jensen concerning special filling nozzles and availability of unleaded fuel. Appendix III Notice of Proposed Change in Exhaust Emission Standards for Heavy-Duty Gasoline and Diesel-Powered Engines. Appendix IV Proposed California Exhaust Emission Standards Test and Approval Procedures for 1975 and Subsequent Model-Year Engines in Gasoline-Powered Motor Vehicles over 6000 Pounds Gross Vehicle Weight. Appendix V Proposed California Exhaust Emission Standards Test and Approval Procedures for Diesel Engines in 1975 and Subsequent Model-Year Vehicles over 6000 Pounds Gross Vehicle Weight. Appendix VI Notice of Public Hearing to Consider Proposed Changes to the Exhaust Emission Test Procedures for 1975 and Subsequent Model-Year Heavy-Duty Engines.