State of California
AIR RESOURCES BOARD

Agriculture Building
1220 N Street
Assembly Room 127
Sacramento, CA

April 16, 1975
9:00 a.m.

AGENDA

Page

75-7-1 Approval of Minutes of March 17, 1975 Meeting.

75-7-2 Public Hearing to Reconsider Exhaust Emission 1
Standards for 1977 and Subsequent Model-Year
Heavy-Duty Engines.

75-7-3 Public Hearing to Amend the Liquefied Petroleum 29
and Natural Gas Conversion Approval Test
Procedures.

75-7-4 Public Hearing to Confirm Changes to Vehicular 48
Enforcement Regulations Including Recall Procedures.

75-7-5 Public Hearings to Consider Inspection Specification
Regulations in Title 13.
a. New Vehicles (Continued). 63
b. Used Vehicles. 84

75-7-6 Public Hearing to Consider Fuel Evaporative 101
Emission Control Regulations for 1977 Model-Year
Light-Duty Vehicles.

75-7-7 Emergency Action to Delete High Altitude Test 133
Provisions from the 1975 and Subsequent New Vehicle
Approval Procedures.

75-7-8 Other Business - 147
a. Executive Session-Personnel and Litigation
b. Board Member Reports and Assignments
c. Research Proposals

75-7-9 Remarks from Audience

75-7-10 Discussion of Air Pollution Emergency Plan
Requirements.

75-7-11 Discussion of EPA's No-Significant Deterioration
Regulations.

75-7-12 Discussion of Transportation Control Plan for
California.

Note: Items 75-7-10, 11, and 12 will be workshop sessions
with staff. Public participation is not contemplated
and no Board actions will be taken. Items 10 and 11
will be taken up in the afternoon, if there is time; if
not, these items will be continued into the evening, or
possibly the following day. Representatives of
CalTrans will participate in Item 12 which is scheduled
for 7:30 p.m.

ITEM NO.: 75-7-2

Public Hearing to Reconsider Exhaust Emission Standards for 1977
and Subsequent Model-Year Heavy-Duty Engines.

RECOMMENDATION

Affirm existing 1977 heavy-duty emission standards. Declare
intent to defer 1977 standards for one year if EPA adopts new
classifications and test procedures for 1978 models.

SUMMARY

Several engine manufacturers have requested that the Air
Resources Board postpone implementation of the 1977 heavy-duty
emission standards. The staff evaluated several aspects of these
standards and concluded the following:

- The current 1977 heavy-duty standards represent emission
reductions from 1970 levels comparable to the reductions
required of 1977 light-duty trucks.

- The emission reductions achieved by the current 1977 heavy-duty
standards are more cost/effective than the reductions
achieved by the 1977 passenger car standards, and will
reduce L.A. County mobile source hydrocarbons 42 tons/day to
199 tons/day and oxides of nitrogen 59 tons/day to 316
tons/day by 1985.

- The EPA tentatively proposing changes to its heavy-duty
certification regulations which would essentially require
all heavy-duty manufacturers to recertify their entire
product line in 1978, and which could transfer more than 60%
of the heavy-duty gasoline trucks into the light-duty truck
category. These changes would occur independently of any
ARB actions.

- In light of the regulation changes proposed by EPA for 1978,
most manufacturers have indicated that if the current 1977
California standards remain in effect they will offer
severely limited product lines in California for the 1977
model year. This could prompt many truck fleet operators to
purchase 49-state engines in 1977 and bring them into
California as used engines.

ITEM NO.: 75-7-3

Public Hearing to Amend the Liquefied Petroleum and Natural Gas
Conversion Approval Test Procedure.

RECOMMENDATION

Adopt Resolution 75-18.

SUMMARY

The Air Resources Board is authorized to adopt standards and test
procedures for vehicles modified to utilize gaseous fuels under
Sections 39052 and 39113 of the Health and Safety Code. Section
39110 of the same Code requires that these standards be the same
as those for which the gasoline-powered vehicle was approved. In
addition, Sections 39102 and 39102.5 of the Health & Safety Code
contain criteria for granting a fuel tax exemption pursuant to
Section 8657 of the Revenue and Taxation Code.

Pursuant to these Codes, the staff proposes amendments to the
existing test procedures so that they are more appropriate for
the 1975 model-year vehicles. To do so, the CVS-1975 exhaust
emission test cycle, amended for gaseous fuels, is proposed in
lieu of the 7-mode test cycle. Other substantive changes in the
test procedures as discussed in the attached staff report
include; (1) a reduction in the required number of test vehicles,
(2) simplification of precondition criteria for test vehicles,
and (3) a test procedure option for systems applicable to heavy-duty vehicles.

ITEM NO.: 75-7-4

Public Hearing for Adoption of Proposed Changes to Vehicular
Enforcement Regulations Including Recall Procedures.

RECOMMENDATION

Adopt Resolution 75-21.

SUMMARY

At its February 19, 1975 Board meeting the Board adopted
emergency amendments to its regulations in Title 13, relating to
enforcement of its standards and test procedures. These
amendments, with minor changes, are now before the Board for
confirmation as permanent regulations. These regulations bring
the Board's enforcement procedures into conformity with the
recent legislative amendment of Health and Safety Code Section
39154 and specify the conditions and procedures for recall
actions. The proposed action would also clarify the Executive
Officer's authority in the event of assembly-line inspection
testing violations.

ITEM NO.: 75-7-5a

Public Hearing to Consider Inspection Specification Regulations
in title 13--New Vehicles.

RECOMMENDATION

Adopt Resolution 75-13.

SUMMARY

The Air Resources Board proposes to delete Section 2150 of Title
13 of the California Administrative Code. This section sets
forth inspection surveillance procedures for new motor vehicles
at dealerships. In its place a new Section 2151 is proposed to
make more specific the criteria to be met by new vehicles and to
clarify responsibility for ensuring compliance.

This item was discussed at the Board's March 17, 1975 meeting.
The staff has reviewed manufacturer's comments and additional
changes to the resolution which were submitted at that meeting.

ITEM NO.: 75-7-5b

Public Hearing to Consider Inspection Specification Regulations
in Title 13--Used Vehicles.

RECOMMENDATION

Adopt Resolution 75-22.

SUMMARY

The Air Resources Board proposes to add Section 2152 to Chapter
3, Title 13 of the California Administrative Code. This section
sets forth inspection and surveillance procedures for used motor
vehicles at dealerships. These regulations are proposed to make
specific the criteria to be met by used vehicles and to clarify
responsibility for ensuring compliance.

Since the public hearing notice was published, the staff has made
some amendments to the original proposal. The checks required to
be made by dealers are clarified and the idle mixture adjustment
procedures are changed to ensure that manufacturers' adjustment
procedures and specifications are used.

ITEM NO.: 75-7-6

Public Hearing to Consider Fuel Evaporative Emission Regulations
for Light-Duty Vehicles.

RECOMMENDATION

Adopt Resolution 75-26.

SUMMARY

Evaporative emissions from light-duty vehicles have been
controlled beginning with the 1970 model year. However recent
tests have indicated that the carbon trap test procedure used to
certify evaporative controls does not accurately represent
vehicle fuel evaporative emissions. A more accurate test is the
SHED technique, which indicates that fuel evaporative emissions
may be an order of magnitude higher than what the Board
originally intended. To remedy this problem the staff proposes a
new standard and test procedure to be effective with the 1977
model year.

ITEM NO.: 75-7-7

Emergency Action to Delete High Altitude Test Provisions from the
1975 and Subsequent New Vehicle Approval Procedures.

RECOMMENDATION

Adopt Resolution 75-25.

SUMMARY

At a public hearing on February 19, 1975 the Air Resources Board
adopted Resolution 75-1 which specifies test procedures for
demonstrating compliance with exhaust emi