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.