State of California AIR RESOURCES BOARD Resources Building Auditorium 1416 Ninth Street Sacramento, CA November 14, 1973 9:30 a.m. AGENDA 73-26-1 Approval of Minutes of October 17, 1973 Meeting. 73-26-2 Public Hearing - Proposed Regulations for Action to be Taken if the ARB is Prevented From Conducting Surveillance of Assembly Line Testing. 73-26-3 Public Hearing - Proposed Highway Emission Standards for 1974 Model-Year Vehicles. 73-26-4 Public Hearing - Proposed Changes to Emission Standards for 1975 Heavy-Duty Diesel and Gasoline Powered Engines. 73-26-5 Consideration of Exhaust Emission Standards for 1975 Light-Duty Vehicles. 73-26-6 Consideration of Colspan's Application for Accreditation of its Device for 1955-65 Model Year Vehicles. 73-26-7 Progress Report on NOx Device Installations. 73-26-8 Report on Effect of Catalytic Converter Control Systems on Emission of Sulfates. 73-26-9 Other Business. 73-26-10 Remarks From Audience - End of Morning and Afternoon Sessions. ITEM NO.: 73-26-2 Public Hearing - Proposed Regulations for Action to be Taken if the Air Resources board is Prevented from Conducting Surveillance of Assembly-Line Testing. RECOMMENDATION Adopt Resolution 73-51. DISCUSSION The Air Resources Board (ARB) staff is now engaged in a worldwide operation of physical plant inspections conducting surveillance of assembly-line testing. It has come to the staff's attention that public officials of some foreign countries object to visit of manufacturing plants in their countries. Some countries have either prevented Environmental Protection Agency (EPA) staff members from entering their country or put many obstacles in the way of entering the country. Notably, French officials refused to allow EPA staff members to enter France, Italian officials finally allowed entrance to Italy after much negotiating, and Japan has expressed concern over a recent visit of EPA. We expect the same objections will be made to visits by ARB staff. Since the ARB's program of surveillance of assembly-line testing includes plant inspections, it would not be consistent to visit plants only in countries which did not object. In order to provide an alternative solution, adoption of Section 2151 of title 13 of the California Administrative Code is proposed. It provides that, in any instance where the ARB is prevented from conducting surveillance of assembly-line testing, the manufacturers shall perform all assembly-line testing (all functional tests, steady state inspection tests and quality audit tests) within California, where surveillance shall be permitted. If surveillance of assembly-line testing is not allowed where the manufacturer's vehicles are assembled, and surveillance is not performed pursuant to Section 2151, then Section 2152 provides the ARB with the means of enforcement by withholding approval of the following and all subsequent model years until inspection is permitted. A copy of the Public Hearing Notice and proposed Resolution 73-51 are appended to this report. A minor amendment is recommended in the regulation, to make it clear that when entry is permitted, after having been denied, the entry will be assured for more than just one year. ITEM NO.: 73-26-3 Public Hearing - 1974 Model-Year Passenger Vehicle Inspection (PVI) Standards for Idle Hydrocarbons and Carbon Monoxide. RECOMMENDATION Adopt Resolution 73-55. SUMMARY ARB surveillance and Highway Patrol PVI data for 1972 and 1973 model years were analyzed to obtain a basis for 1974 model year PVI standards. 1974 model year standards may logically be calculated from data for the 1972 and 1973 model years, since the HC and CO certification standards are identical. The data analysis suggests that all of the PVI standards should be re-evaluated for consistency and fairness. Since only the 1974 standards were noticed for public hearing, it is recommended that the 1972-73 standards be extended to the 1974 models without change as an interim measure. The staff proposes to review the entire set of standards for Board action in January. ITEM NO.: 73-26-4 Public Hearing - Proposed Exhaust Emission Standards for 1975 and Subsequent Model-Year Gasoline and Diesel Fueled Engines in Motor Vehicles over 6,000 Pounds Gross Vehicle Weight. RECOMMENDATION No staff recommendation at this time. Manufacturers will present data to ARB November 14 on possible changes to standards. SUMMARY The present standard for hydrocarbons plus oxides of nitrogen (as NO2) is 5 grams per brake horsepower hour. The staff has proposed to amend the regulations to provide some relaxation of this standard (See attached Resolution 73-54). The Board conducted a workshop on October 30 to consider arguments fro recommended changes. Issues discussed in the workshop included the following: 1. Heavy-duty vehicles currently contribute about 20 to 25% of total vehicle emissions. 2. Heavy-duty vehicles carry more passengers or pay-load than light-duty vehicles. Manufacturers claim this should be considered in standard-setting. 3. Diesel Vehicle control to 5gm./BHP is more cost-effective than light-duty vehicle NOx control to 2 gm./mile. Light and heavy-duty gasoline vehicle controls are not greatly different in cost-effectiveness. 4. Argument can be made for separate standards for medium vs. Heavy trucks; gasoline vs. Diesel engines. It is probably too late to change classifications for 1975 model year. 5. Manufacturers want assurance of "rounding" convention, test procedure, and production engine requirements. 6. Manufacturers were invited to submit detailed cost and application data by November 14, including engines which would be offered for sale in California under NOx and HC Standards of 5, 7.5, and 10 gm./BHP. ITEM NO.: 73-26-5 1975 Model-Year Light-Duty New Vehicle Standards. RECOMMENDATION Confirm the emergency regulations for hydrocarbons and oxides of nitrogen for passenger cars; return the carbon monoxide standard for passenger cars to 17 grams per mile; adopt by emergency regulation EPA's standards for light-duty trucks. SUMMARY This is a continuation of the hearing on October 30, 1973 on the confirmation of the emergency regulation of June 20, 1973 adopting EPA's California passenger car exhaust emission standards. ITEM NO.: 73-26-6 Consideration of Colspan's Application for Accreditation of its Device for 1955-65 Model Year Vehicles. RECOMMENDATION Deny accreditation. SUMMARY Colspan Environmental Systems, Inc., submitted an application for accreditation of its "Automix II" exhaust emission control system for 1955 through 1965 model vehicles in engine size classes (e) and (f). The staff has reviewed Colspan's application and related data and conducted tests at the ARB laboratory. The applicant's fleet vehicles which were tested at high altitude in Colorado, barely met the emissions standards as required by the board's test procedure. However, each of the five vehicles tested at low altitude by ARB personnel exceeded at least one emission standard. Based on an overall evaluation, the staff cannot recommend that the Board grant accreditation of the "Automix II" exhaust emission control system. The staff will be receptive to new tests of a revised system if improvement to the hardware, installation and adjustment procedures are developed and proven by Colspan. ITEM NO.: 73-26-7 Progress Report on NOx Device Installations. RECOMMENDATION None. For informational purposes only. SUMMARY This report summarizes the present state of the 1966-70 NOx control program. The current configurations of the approved devices are presented, as are reports on installation and production schedules. In addition, the present status of the two field experience programs requested by the Legislature (SCR 70 and SR 52) are described. ITEM NO.: 73-26-8 Report on Effect of Catalytic Control Systems on Emission of Sulfates. CONCLUSION Oxidation catalysts will increase exhaust sulfate concentrations. Not all atmospheric sulfate is due to exhaust emissions. The amount of sulfate from catalysts will be dependent upon the number of cars equipped with these devices and sulfur content of gasoline. Consideration of the limiting cases indicates little risk involved in proceeding with catalytic controls for at least one year, while further investigating the sulfur problem. No alternative systems could be applied to 1975 model vehicles to meet the 1975 EPA interim standards for California. Should the sulfate problem be important, alternative remedies, such as fuel sulfur control, could be considered. If catalysts are not used in 1975 model vehicles, it would probably be necessary to revert back to the emission standards for the 1974 model year. SUMMARY The report consists of four sections: 1. Emissions data from ARB and other laboratories. 2. Ambient air data for sulfur dioxide and particulate sulfate. 3. Health effects information. 4. Legal implications. Existing data indicate that oxidation catalysts tend to change the oxidation state of fuel sulfur emissions from sulfur dioxide to sulfur trioxide, the anhydride form of sulfuric acid. Non-catalytic exhaust contains about 10% of its sulfur as sulfur trioxide. Catalytic treatment of the exhaust increases the concentration of sulfur trioxide by a factor of two to five. Emissions data and the ambient air consequences of the altered sulfur emissions are not yet well defined. The highest monthly average of sulfate concentrations measured in the South Coast Air Basin in 1970 was 25 micrograms per cubic meter. It is estimated that the concentration would increase to 35 if all cars were equipped with catalytic controls and if all the sulfur in gasoline were emitted in the sulfuric acid or sulfate form. Ambient air standards exist for sulfur dioxide but have not yet been established for sulfate compounds. ITEM NO.: 73-26-9 Fees for conducting assembly-line surveillance--personnel costs. RECOMMENDATION Authorize the Executive Officer to proceed with the adoption of amendments to the Administrative Code as previously noticed. DISCUSSION On October 1, 1973, the Executive Officer proposed the adoption of an amendment to the Administrative Code which would clarify the board's intent to include the salary of personnel in fees to be charged manufacturers under the assembly-line testing surveillance program. A copy of the notice is attached. At the October 17, 1973 Board meeting Donald Schwentker, attorney for the Automobile Importers of America, raised the issue of whether the Executive Officer is the appropriate person to amend regulations concerning fees for surveillance of assembly-line testing, in particular, the addition of the word "personnel" to 13 California Administrative Code Section 2150. The Board submitted the matter to the Executive Committee (the Chairman and the Vice-Chairman). On October 29, 1973, the Executive Committee discussed the matter with the Executive Officer, who advised them that there was little that could be done as personnel for the program have been budgeted out of the fees imposed. The Committee therefore recommends that the Executive Officer proceed with the adoption of the regulation. However, the Executive Committee recommended reviewing the entire assembly-line surveillance program to determine if the program is appropriate for the costs involved and the benefits gained. This should be the subject of a later Board meeting. The board has already recommended that the costs of surveillance be paid out of state funds, and that the fees be dropped entirely. This can best be accomplished by a change in the legislation which authorizes the fees. If the Board concurs, the staff will submit a legislative proposal to delete the Board's authority to charge the fees. Attachment