CALIFORNIA AIR RESOURCES BOARD
Auditorium, First Floor
400 "P" Street
September 10, 1987
87-12-1 Public Hearing to Consider the Adoption of a 001
Regulatory Amendment Identifying Carbon
Tetrachloride as a Toxic Air Contaminant.
87-12-2 Public Hearing to Consider Amendments to 402
Regulations Regarding Certification Labeling
Requirements Applicable to New California Motor
87-12-3 Public Meeting to Consider Approval of a 521
Suggested Control Measure for Control of
Emissions of Oxides of Nitrogen from Industrial,
Institutional, and Commercial Boilers, Steam
Generators and Process Heaters.
THE MEETING MAY BE RESUMES AT 8:30 A.M. SEPTEMBER 11, 1987 TO
ALLOW COMPLETION OF THE AGENDA.
a. Closed Session
1. Personnel (as authorized by State Agency Open Meeting
Act, Govt. Code Sec. 11126(a).).
2. Litigation (Pursuant to the attorney-client privilege,
Evidence Code Sec. 950-962, and Govt. Code Sec.
b. Research Proposals
c. Delegations to Executive Officer
ITEM NO.: 87-12-1
Proposed Identification of Carbon Tetrachloride as a Toxic Air
The ARB staff recommends that carbon tetrachloride be identified
as a toxic air contaminant for which there is not sufficient
available scientific evidence to support the identification of an
exposure level below which no significant adverse health effects
In accordance with the provisions of Health & Safety Code Section
39650 et seq, the ARB staff, after consulting the Department of
Health Services (DHS), selected carbon tetrachloride for the
Board's consideration for listing as a toxic air contaminant.
The staff selected carbon tetrachloride because it has been
identified by the International Agency for Research on Cancer as
an animal carcinogen, it is emitted from many sources in the
state, and its presence in the ambient air is documented.
As required by Health and Safety Code Section 39661, a report was
prepared jointly by the DHS and ARB staffs reviewing the health
effects and anticipated exposure levels of carbon tetrachloride.
The Scientific Review Panel, which was established by Health and
Safety Code Section 39670, reviewed the report. The Scientific
Review Panel found that the carbon tetrachloride report is
without serious deficiency and submitted its written findings to
the Board. The Scientific Review Panel has recommended that the
Air Resources Board list carbon tetrachloride by regulation as a
toxic air contaminant and found that based on available
scientific information, a carbon tetrachloride exposure level
below which carcinogenic effects are not expected to occur cannot
be identified at this time.
SUMMARY AND IMPACTS OF PROPOSED BOARD ACTION
The identification of carbon tetrachloride as a toxic air
contaminant will not in itself have any environmental and
economic impacts. However, specific control measures may be
developed subsequent to identification. Analyses of potential
environmental and economic impacts will be included in the
consideration of such control measures.
ITEM NO.: 87-12-2
Public Hearing to Consider Amendments to Regulations Regarding
Certification Labeling Requirements Applicable to New California
The staff recommends that the Board amend Section 1965, Title 13,
California Administrative Code and the "California Motor Vehicle
tune-Up Label Specifications". These changes will require that
manufacturers of passenger cars, light-duty trucks, medium-duty
vehicles, and heavy-duty gasoline-powered trucks affix on their
vehicles machine-readable labels which contain vehicle
identification and emission control system descriptive
This proposal reflects the growing importance that the emission
control tune-up label plays in assisting the Smog Check mechanic
to properly identifying and report motor vehicles. Starting in
1989, this provision will require two machine-readable labels
(bar codes) to be affixed to every new passenger car, light-duty
truck, medium-duty vehicle, and heavy-duty gasoline-powered
truck. These labels will identify the vehicle's emission control
systems, engine specifications, vehicle identification number and
other pertinent information necessary for the proper
identification and repair of the vehicle. The new
machine-readable labels will significantly improve the Smog Check
inspection by automating the input of information to the test
analyzers, instead of relying on the current manual method which
is not as reliable. Other minor changes to the labeling
requirements are proposed which will update tune-up information
currently required in the label specifications. These amendments
are necessary in order to improve the effectiveness of the Smog
Check Program, and reflect the needs of the motor vehicle
manufacturers where appropriate.
SUMMARY AND IMPACTS OF PROPOSED ACTION
The amendment to require machine-readable labels will result in
an overall cost savings to California consumers as well as result
in an environmental benefit. The other proposed amendments will
streamline the labeling requirements for manufacturers, resulting
in further cost savings.
ITEM NO.: 87-12-3
Public Meeting to Consider Approval of a Suggested Control
Measure for the control of Emissions of Oxides of Nitrogen from
Industrial, Institutional, and Commercial Boilers, Steam
Generators, and Process Heaters.
The Air Resources Board staff recommends that the Air Resources
Board (ARB or Board) approve the suggested control measure
presented in this report.
Pollutant to be controlled.-Oxides of Nitrogen (NOx).
Sources to be controlled.-The suggested control measure applies
to combustion units in three categories of sources:
* Boilers used to produce steam in industrial, Institutional,
or commercial applications.
* Steam generators used in oil field operations.
* Process heaters, such as used at petroleum refineries, that
heat fluids for purposes other than producing steam.
Why control is necessary.-Control is necessary to achieve
compliance with various ambient air quality standards. The
specific standards for which compliance is needed are the federal
and state standards for nitrogen dioxide (NO2); the federal
standards for particulate matter and ozone; and the state
standards for particulate matter, oxidant, and visibility
Where sources are located.-The sources addressed by the suggested
control measure are located throughout California but with the
greatest concentrations in the South Coast Air Basin and the San
Joaquin Valley Air Basin.
Emissions from these sources.-The statewide emissions of oxides
of nitrogen from combustion units addressed by the proposed
suggested control measure were about 167 tons per day in 1983.
Such combustion units in the South Coast Air Basin and in the San
Joaquin Valley Air Basin emitted about 24 and 89 tons of oxides
of nitrogen per day, respectively, in 1983.
Emissions reductions obtainable.-Implementation of the suggested
control measure would result in emissions reductions of about 10
tons per day in the South Coast Air Basin and about 58 tons per
Requirements.-The specific requirements depend on the size of the
unit and the type of fuel that is being burned. They are shown
in Table 2 of the staff report. Regulations adopted by districts
that need control of oxides of nitrogen emissions may be more or
less stringent than the suggested control measure.
Control technology and costs.-In most cases, low-NOx burners and
flue gas recirculation would be used to meet the proposed
requirements. The costs of these technologies range from about
$0.50 to $4.00 per pound of oxides of nitrogen reduced.
District efforts.-A number of local districts are considering
developing regulations for industrial boilers and steam
generators as strategies for achieving compliance with the
various ambient air quality standards. The South Coast AQMD is
beginning to develop such a rule.
Public participation in the development of the proposal.-In
developing the technical basis for the proposed suggested control
measure, the ARB and SCAQMD staffs conducted three consultation
meetings with interested persons. The draft suggested control
measure and technical support document were discussed at two of
The Technical Review group designated the Air Resources Board and
the South Coast Air Quality Management District as co-lead
agencies to develop this suggested control measure. The
Technical Review Group is made up of the staff member from air
pollution control districts, the U.S. Environmental Protection
Agency, and the Air Resources Board. The staff members of the
Air Resources Board prepared this report. As part of the process
of developing the suggested control measure, it was reviewed and
approved by the Technical Review Group.