State of California AIR RESOURCES BOARD Resources Building Auditorium 1416 Ninth Street Sacramento, CA March 21, 1973 9:30 a.m. AGENDA 73-6-1 Approval of Minutes of March 7, 1973 Meeting. 73-6-2 Consideration of Applications for Accreditation of NOx Control Devices: (a) Contignitron Company. (b) Clean Air Research Company. 73-6-3 Consideration of Assembly-Line Test Results for the 2nd Quarter Production of 1973 Model Year Vehicles. 73-6-4 Report on Survey of Adjustment Practices of New Car Dealers. 73-6-5 Consideration of Board Policy Concerning the Surveillance of New Vehicles for Compliance with End of Assembly-Line Requirements. 73-6-6 Enforcement Implications of Air Resources Board Regulations Pertaining to Motor Vehicles After Sales. 73-6-7 Status Report on Catalytic Device Testing. 73-6-8 Other Business. 73-6-9 Remarks from Audience - End of Morning and Afternoon Sessions. ITEM NO.: 73-6-2a Contignitron Company's Application for Accreditation of an NOx Control Device for 1966-1970 Model Year Vehicles. RECOMMENDATION Deny accreditation. SUMMARY The Contignitron Company has submitted an application for accreditation of its device for NOx exhaust emission control for 1966 through 1970 model year vehicles in classes (a, c, d, e, and f). The test data and other information submitted show that the device has satisfied the oxides of nitrogen emission standard requirement for vehicles in engine size classes (a) and through (f). However, the Contignitron device utilizes an electronic time delay which further retards the spark timing beyond the retard obtained with a simple vacuum spark advance disconnect. The Contignitron system does not include provisions for engine thermal protection and the applicant did not submit temperature data to show the effects of the device on engine temperatures. Data obtained in the Air Resources Board Laboratory thermal effect tests indicate that the Contignitron device causes exhaust gas temperatures to increase approximately 60øF more than the increase obtained with a vacuum spark advance disconnect. It is, therefore, the staff's recommendation to deny accreditation for engine size classifications (a) and through (f) because of potential damage that could occur because of the increased exhaust temperatures obtained with the device. ITEM NO.: 73-6-2b Clean Air Research Company, Inc., Application for Accreditation of an NOx Control Device for 1966-1970 Model Year Vehicles. RECOMMENDATION None. SUMMARY The Clean Air Research Company has submitted an application for accreditation of its device for NOx exhaust emission control for 1966 through 1970 model year vehicles in engine size classes (b, c, d, e and f). The applicant had not submitted all the necessary data. Therefore an incomplete staff report is presented for informational purposes. Some of the issues raised by this application could be decided on the basis of this incomplete report. These issues include financial responsibility of the applicant, adverse effects on vehicle performance and interaction with Board policy concerning simple VSAD. ITEM NO.: 73-6-3 Assembly-Line Test Results for the 2nd Quarter Production of 1973 Model Year Vehicles. SUMMARY The staff has reviewed the reports submitted by vehicle manufacturers on their second quarter's production. Table I and II 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 approved standard for a given compound. The overall average quality audit test emissions for the second quarter are 32%, 22%, and 26% lower than the HC, CO, and NOx emission standards respectively. ITEM NO.: 73-6-4 Survey of Adjustment Practices of Manufacturers and New Car Dealers. RECOMMENDATION None. (This is related to the agenda item concerning Proposed Changes in Engine Adjustment Policy for Surveillance of New Vehicles for Compliance with End of Assembly-Line Requirements.) SUMMARY The staff has conducted a survey of new car dealers to determine if new car engines are being adjusted to manufacturer's specifications. The survey shows some improvement in adjustment practices since the last survey in 1971. The initial report concerning the recent survey was submitted to the Board on February 21, 1973. Since that date, the report has been revised and is being resubmitted at the request of the Board. ITEM NO.: 73-6-5 Proposed Changes in Engine Adjustment Policy for Surveillance of New Vehicles for Compliance with End of Assembly-Line Requirements. RECOMMENDATION Adopt proposed policy. SUMMARY The assembly-line test procedures require all vehicles to be adjusted to the manufacturer's specifications for delivery to customers prior to emission testing. To assure compliance with this requirement, the Executive Officer requested each manufacturer to submit his plan of engine adjustment practices. These plans have been evaluated and a proposed policy developed. Action on the proposed policy was deferred to permit comments from new car dealers. The Executive Officer has notified the California Motor Car Dealers Association of the proposed policy and invited their dealers to present testimony at today's meeting. A copy of the Executive Officer's letter is attached. ITEM NO.: 73-6-6 Enforcement Implications of Air Resources Board Regulations Pertaining to Motor Vehicles after sale. SUMMARY Two reports are included in this item: 1. A general discussion of vehicle emission control device enforcement. 2. A report on experience with the NOx retrofit program in Riverside County. ITEM NO.: 73-6-7 Status Report on Air Resources Board Laboratory Catalytic Device Testing. SUMMARY A progress report, dated March 1, 1973, is included in the Board book. Updated test information and discussion will be presented at the meeting. ITEM NO.: 73-6-8a Accreditation of the Carter Carburetor Device. RECOMMENDATION Adoption of Resolution 73-11. SUMMARY At the February 21 meeting, the Board adopted a motion accrediting the Carter Carburetor retrofit exhaust device for 1966-70 vehicles. The adoption of attached Resolution 73-11 will confirm the Board's action for record purposes. ITEM NO.: 73-6-8b Tentative Schedule of Meeting Places and Dates. RECOMMENDATION Confirm schedule. SUMMARY Attached is a tentative schedule for Board meeting dates through December 1973. Adoption of this list will cancel the meeting presently scheduled for Tahoe, California on June 7, 1973.