State of California
AIR RESOURCES BOARD
State Office Building
455 Golden Gate Avenue
San Francisco, CA
November 13, 1974
74-21-1 Approval of Minutes of October 9, 1974 Meeting.
74-21-2 Public Hearing Regarding Proposed Changes to 1
Title 13 California Administrative Code Regulations
for Fuel Additive Test and Evaluation.
74-21-3 Consideration of STP Corporation's Application 17
for Accreditation of its Air Computer as an NOx
Control Device for 1966-70 Class (b-f) Vehicles.
74-21-4 Motor Vehicle Emission Standards for 1977.
a. Effect of Proposed Motor Vehicle Emission 50
Standards on Air Quality.
b. Public Hearing Regarding Proposed Emission 87
Standards for 1977 Model-Year Passenger Cars
and Light-Duty Trucks.
74-21-5 Status Report on Catalytic Device Equipped Test 115
74-21-6 Consideration of an Appeal by Geraghty Dyno-Tuned 136
Products, Inc. Of the Staff Denial regarding an
Exemption from the Prohibitions Imposed by Vehicle
Code Section 27156.
74-21-7 Other Business -
a. Sixth Quarterly Report to the Legislature on 174
Manufacturer's Efforts and Progress in Meeting
Statutory Federal Vehicle Emission Standards.
b. Los Emission Standards for 1975 Model-Year 175
c. Lindberg Ecology Econopower Device's Effect 176
On HC and CO Emissions.
d. Executive Session - Litigation and Personnel.
e. Board Committee Reports and Assignments.
f. Research Proposals.
g. Summary of Air Pollution Legislation 184
h. Proposed Meeting Dates - Spring 1975. 191
74-21-8 Remarks from Audience - End of Morning and Afternoon
ITEM NO.: 74-21-2
Public Hearing Regarding Proposed Changes to Title 13 California
Administrative Code Regulations for Fuel Additive Test and
Adopt Resolution 74-63.
Section 39052.10 of the Health and Safety Code authorizes the Air
Resources Board to conduct tests of motor vehicle fuel additives.
The Board, at the July 10, 1974 meeting, adopted test procedures
and a test program for gasoline and diesel vehicle fuel
additives. A proposed fee schedule for testing fuel additives
was presented to the Board at the October 9, 1974 meeting.
The Board presently has regulations in Sections 2200-2206, Title
13 of the California Administrative Code for the evaluation of
motor vehicle pollution control devices and fuel additives. The
proposed changes will update these regulations to incorporate, by
reference, the new fuel additive test program and test procedures
and will adopt the proposed fee schedule.
The fee schedule and hold harmless agreement form also presented
incorporate recommendations of the Board made at the October 9,
1974 meeting regarding fuel additive tests by private contractors
and provisions to protect additive manufacturers' trade secrets.
ITEM NO.: 74-21-3
Consideration of STP Corporation's Application for Accreditation
of its Air Computer as an NOx Control Device for 1966-70 Class
Adopt Resolution 74-57-1.
STP Corporation has submitted an application for accreditation of
its Air Computer device as an NOx control device. This
application is intended for class (b) through (f) 1966-70
model-year vehicles. At the October 9, 1974 meeting the Board
adopted Resolution 74-57 accrediting the STP Air Computer Device for
1966-70 model-year class (a) vehicles. This report presents and
evaluation of device effectiveness for class (b) through (f)
vehicles. The device is not applicable to vehicles equipped with
vacuum advance only or centrifugal advance only distributors.
The Air Computer device utilizes spark retard and air/fuel
mixture leaning for the control of exhaust emissions.
Spark-timing retard consists of 4 retard to basic timing and
delay of distributor vacuum advance by use of a valve. Leaning of the
air/fuel mixture is accomplished by a vacuum modulated air bleed
unit which controls the bleed air into the intake manifold.
Confirmatory tests by the Air Resources Board Laboratory show
that the device satisfies the 42% NOx reduction standard. It is
the staff's opinion that the applicant has also met all the other
criteria for NOx device accreditation.
The staff recommends accreditation of the Air Computer device for
class (b) through (f) 1966-70 vehicles.
ITEM NO.: 74-21-4A
Effects of Proposed Light Duty Motor Vehicles Emission Standards
on Air Quality.
Receive public hearing testimony and defer decision on adoption
of the standards until the December 11, 1974 Board meeting.
The proposed exhaust emission standards for new 1977 model-year
gasoline-powered passenger cards and light-duty trucks having an
engine displacement of 50 cubic inches or greater and subject to
registration and sold and registered in this state are:
Hydrocarbons -- 0.41 grams per mile
Carbon Monoxide -- 9.0 grams per mile
Oxides of Nitrogen -- 1.5 grams per mile
This staff report shows the effects of the proposed exhaust
emission standards upon air quality in the South Coast Air Basin,
specifically in Los Angeles County.
Since the preliminary staff report was prepared, the emissions
from passenger cards and light-duty trucks have been
recalculated, using the California CVS-II method exhaust emission
data. The results show that by 1985, the emissions of
hydrocarbons, carbon monoxide and oxides of nitrogen from these
vehicles should be a small fraction of the total emissions of
The proposed standards will accomplish an overall 4 percent
reduction of reactive hydrocarbon emissions and a 6 percent
reduction of oxides of nitrogen emissions (as compared to the
1976 standards) in the South Coast Air Basin by 1985.
Even with the most stringent auto exhaust emission standards, the
one-hour 0.25 ppm air quality standard for nitrogen dioxide and
the 0.10 ppm oxidant standard will not be achieved in the South
Coast Air Basin by 1985 because of the contributions of emissions
from other sources.
ITEM NO.: 74-21-4B
Public Hearing Regarding Proposed Emissions Standards for 1977
Model-Year Passenger Cars and Light-Duty Trucks.
Receive public hearing testimony and defer decision to December
11 Board meeting.
The impact of the proposed 1977 light-duty vehicle emission
standards is discussed in relation to control technology, cost,
and effects on air quality. The standard can be met. The
incremental cost will average between $100 and $200. Increased
duel consumption will cost an additional $50 per year. The
standards by 1985 will accomplish a 4% reduction of total
reactive hydrocarbon emissions and a 6% reduction of total
nitrogen oxides emissions in the South Coast Air Basin.
ITEM NO.: 74-21-5
Status Report on Catalytic Device Equipped Test Fleets.
None. Informational item.
Three fleets of catalytic converter equipped vehicles (State
operated) are currently undergoing evaluation at the Board's El
Monte Laboratory. The fleets are equipped with the following
three emission control systems:
1. General Motors advanced catalytic converter emission control
2. Ford advanced catalytic converter emission control system.
3. Universal Oil Products (UOP) retrofit catalytic converter
The General Motors fleet consists of 45 vehicles. Some of these
have been in State service since November, 1972. The average
emission values, including deterioration effect due to mileage
accumulation up to 26,046 miles, are within the 1975-76
The Ford fleet consists of 15 vehicles. The vehicles have been
tested for the third time with an average odometer reading of
16,600 miles. The average emission values are within the 1975-76
California standards for hydrocarbons and carbon monoxide and
slightly above the NOx standard.
The 100-car UOP fleet has been under test for 20 months. The
fleet vehicles (1966 through 1972 model-year cars) are equipped
with retrofit catalytic converter devices. Test data show that
the emission control systems have been effective in reducing
carbon monoxide and hydrocarbon emissions. The emission levels
have been relatively stabilized since the four-month test.
ITEM NO.: 74-21-6
Consideration of an Appeal by Geraghty Dyno-Tuned Products, Inc.
Of the Staff Denial Regarding an Exemption from the Prohibitions
Imposed by Vehicle Code Section 27156.
Sustain the staff's action.
Geraghty Dyno-Tuned Products, Inc. Submitted an application for
an exemption from the prohibitions of Vehicle Code Section 27156
for its Dyno-Tune Kit device. The Executive Officer upon the
recommendation of the staff denied the Geraghty Dyno-Tuned
Products' application. The staff recommendation was based on
measured, increased exhaust emissions produced by the descried
carburetor and distributor modifications.
The staff presents in this report a compilation of all actions
and correspondence leading up to the Geraghty Dyno-Tuned Products
appeal. These exhibits as numbered are:
I. The staff report which is an evaluation of the device and
which recommends denial for the above mentioned reason. The
staff report also includes the Geraghty Dyno-tuned Products
application letter (Page 26).
II. The letter of denial from the Executive Officer.
III. Geraghty Dyno-Tuned Products' formal appeal to the Board.
Since the problem area initially addressed in the staff report
was not resolved by the applicant, the staff recommends that the
Board sustain the staff's action.
ITEM NO.: 74-21-7A
Sixth Quarterly Report on the Efforts and Progress of
Manufacturers in Meeting Federal Statutory Vehicle Emission
None, this is an Informational Item.
The Air Resources Board Staf