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may not be used or operated for the purpose of giving protection from frost damage unless the primary air orifice(s) contain (s) not more than the maximum area designated above.

f. (Amended 1-16-58) All types of orchard or citrus grove heating equipment commonly known or designated as follows:

Name

1. Exchange Model

7 in. dia. stack 2. Hy-Lo 148 Special 3. Hy-Lo 230

Maximum Primary Air Orifice in Square Inches 0.606(equivalent to one hole of 7/8 in. diameter)

0.606 (equivalent to one hole of 7/8 in. diameter) 0.606 (equivalent to one hole of 7/8 in. diameter) 4. Lazy Flame 24 in. 0.606(equivalent to one hole of 7/8 in. diameter) stack

5. Lazy Flame 18 in. 1.212 (equivalent to two holes of 7/8 in. diameter) stack

6. National Junior

1.212(equivalent to two holes of 7/8 in. diameter)

may not be used or operated for the purpose of giving protection from frost damage unless the primary air orifice(s) is (are) so adjusted or regulated to a maximum opening of not greater than the area designated above.

8. (Amended 1-16-58) Any new complete orchard or citrus grove heating equipment of the distilling type not listed in subsection ''e'' and ''f'' of this rule must contain a primary air orifice of such design that not more than one (1) gram per minute of unconsumed solid carbonaceous matter is emitted.

h. (Amended 1-16-58) No heater may be placed, be permitted to be placed or be permitted to remain in any orchard or citrus grove or in any other place where heaters may be fired to furnish protection from frost damage unless a permit or conditional permit has been issued.

i. (Amended 1-16-58) The use or operation of any partial assembly of any type heater for the purpose of giving protection from frost damage is hereby prohibited. A permit or conditional permit issued for the use or operation of any type orchard or citrus grove heater is for the use or operation of a complete heater assembly.

REGULATION VII. EMERGENCIES

(Revised 7-26-56) This emergency regulation is designed to prevent the excessive buildup of air contaminants and to avoid any possibility of a catastrophe caused by toxic concentrations of air contaminants. Past history indicates that the possibility of such a catastrophe is extremely remote.

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The Air Pollution Control Board deems it desirable to have ready an adequate plan to prevent such an occurrence, and in case of the happening of this unforeseen event, to provide for adequate actions to protect the health of the citizens in the Air Pollution Control District.

RULE 150. (Adopted 6-20-55) GENERAL. Notwithstanding any other provisions of these rules and regulations, the provisions of this regulation shall apply within the Los Angeles Basin to the control of emissions of air contaminants during any "alert'' stage as provided herein.

RULE 151. (Amended 1-16-58) SAMPLING STATIONS. The Air Pollution Control Officer shall maintain at least six (6) permanently located atmospheric sampling stations adequately equipped. These sampling stations shall be continuously maintained at locations designated by the Air Pollution Control Officer after consultation with the Scientific Committee. The Air Pollution Control Officer may maintain such additional sampling stations as may be necessary. These additional stations may be permanent, temporary, fixed, or mobile, and may be activated upon orders of the Air Pollution Control Officer.

RULE 152. (Revised 7-26-56) AIR SAMPLING. The Air Pollution Control Officer shall establish procedures where by adequate samp lings and analyses of air contaminants will be taken at each of the stations established under RULE 151.

RULE 153. (Adopted 6-20-55) REPORTS. The Air Pollution Control Officer shall make daily summaries of the readings required by Rule 152. The summaries shall be in such form as to be understandable by the public. These summaries shall be public records and immediately after preparation shall be filed at the main office of the Air Pollution Control District and be available to the public, press, radio, television, and other mass media of communication.

RULE 154. (Revised 7-26-56) CONTINUING PROGRAM OF VOLUNTARY COOPERATION. Upon the adoption of this regulation the Air Pollution Control Officer shall inform the public of ways in which air Pollution can be reduced and shall request voluntary cooperation from all persons in all activities which contribute to air pollu tion. Civic groups shall be encouraged to undertake campaigns of education and voluntary air pollution reduction in their respective communities. Public officials shall be urged to take promptly such steps as may be helpful to reduce air contamination to a minimum within the areas of their authority. Employers shall be requested to establish car pools. Users of automotive vehicles shall be urged to keep motors in good condition and to plan routes and schedules which will contribute minimum contamination to critical areas of pollution. All industrial, commercial and business establishments which emit hydrocarbons or the air contaminants

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named in RULE 156 should critically study their operations from the standpoint of air contamination and should take appropriate action voluntarily to reduce air pollution.

RULE 154.1. PLANS. a. (Revised 7-26-56) If the Air Pollution Control Officer finds that any industrial, business or commercial establishment or activity emits hydrocarbons or any of the contaminants named in Rule 156, he may give written notice to the owner or operator of such industrial, business or commercial establishment or activity to submit to the Air Pollution Control Officer plans for immediate shutdown or curtailment, in the event of an air pollution emergency, all of the sources of hydrocarbons or any of the contaminants named in RULE 156, including vehicles owned or operated by such person, his agents or employees in the scope of the business or operation of such establishment or activity. Such plans shall include, in addition to the other matters set forth in this rule, a list of all such sources of hydrocarbons and any of the contaminants named in RULE 156, and a statement of the minimum time and the recommended time to effect a complete shutdown of each source in the event of an air pollution emergency. Such notice may be served in the manner prescribed by law for the service of summons, or by registered or certified mail. Each such person shall, within sixty (60) days after the receipt of such notice, or within such additional time as the Air Pollution Control Officer may specify in writing, submit to the Air Pollution Control Officer the plans and information described in the notice.

b. (Revised 7-26-56) The Air Pollution Control Officer shall prepare appropriate plans to be made effective and action to be taken in respect to a First or Second Alert as follows:

(Revised 7-26-56) In respect to a First Alert, the Air Pollution Control Officer shall develop plans calling for the operation of all privately owned vehicles on a pool basis as may be arranged by persons and employers of persons operating vehicles from home to work and in the business of such employer.

(Revised 7-26-56) In respect to a Second Alert, the Control Officer shall prepare a program of action and steps to be taken under the provisions of RULE 158, paragraph c. The general nature of the plans to be made effective upon a Second Alert shall be reported to and subject to review and approval by the Air Pollution Control Board.

(Revised 7-26-56) It shall be the objective of such program to result in bringing about a diminution of air contaminants which occasioned the Second Alert and to prevent any increase there of in order to protect the health of all persons within the area affected by the alert. It shall also be the objective of such plans

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that they may be effective to curtail the operations of industrial, business, commercial and other activities within the basin, but without undue interference with the operations of public utilities or other productive, industrial, business and other activities, the conduct of which is essential to the health and welfare of the community. It is further intended that any said plan of action shall not jeopardize the welfare of the public or result in irreparable injury to any means of production or distribution or the rendering of public utility services.

(Adopted 6-20-55) The Air Pollution Control Officer shall further, by cooperative agreements or in addition to cooperative agreements, prepare plans for action in respect to industry, business, transportation, hospitals, schools and other appropriate public and private institutions, and the public generally, to accomplish the purposes of the Second Alert action as set forth in Rule 158d. The general nature of the plans to be made effective upon a Second Alert shall be reported to and subject to review and approval by the Air Pollution Control Board.

(Adopted 6-20-55) All plans and programs of action to make effective the procedures prescribed in Rule 158, paragraphs c., and d., shall be consistent with and designed to accomplish the purposes, and shall be subject to the conditions and limitations, set forth in said paragraphs c., and d.

(Adopted 6-20-55) The Air Pollution Control Officer shall give, or cause to be given, wide publicity in regard to plans for action to be applicable under Rule 158, paragraphs c., and d., in order that all persons within the district shall be able to understand and be prepared to render compliance therewith in the event of the sounding of a Second Alert.

RULE 155. (Revised 7-26-56) DECLARATION OF ALERTS. The Air Pollution Control Officer shall declare the appropriate ''alert'' whenever the concentration of any air pollution contaminant has been verified to have reached the standards set forth in Rule 156.

RULE 155.1. (Adopted 7-26-56) NOTIFICATION OF ALERTS. Following the declaration of the appropriate "alert'', the Air Pollution Control Officer shall communicate notification of the declaration of the alert to:

a.

The Los Angeles County Sheriff and the Sheriff shall broadcast the declaration of the ''alert'' by the Sheriff's teletype and radio system to:

1. All Sheriff's substations.

2. All city police departments.
3. California Highway Patrol.

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b. Local public officials and public safety personnel, who have responsibilities or interests in air pollution alerts.

c. Air polluting industrial plants and processes which require ''alert'' data in order to effect pre-arranged plans designed to reduce the output of air contaminants.

d. The general public.

e. All Air Pollution Control District personnel.

RULE 155.2. (Amended 1-16-58) RADIO COMMUNICATION SYSTEM. The Air Pollution Control Officer shall install and maintain, in continuous operation, a radio transmitter with selective calling facilities for the purpose of broadcasting the declaration of alerts and information and instructions which may be appropriate to carry out the provisions of this regulation.

Radio receiving equipment with decoding device capable of receiving broadcasts from the Air Pollution Control Officer of the declaration of alerts and information and instructions there to shall be installed and properly maintained and operated during all hours of plant operation by any person who operates or uses any:

a. Petroleum refinery.

b. Bulk gasoline loading facility for tank vehicles, tank cars, or marine vessels, from which facility 20,000 gallons or more of gasoline are loaded per day. For purposes of this paragraph, gasoline'' means any petroleum distillate having a Reid vapor pressure of four pounds or greater, and facility'' means all gasoline loading equipment which is both: (1) possessed by one person, and (2) located upon a single parcel of land or upon contiguous parcels of land.

c. Asphalt saturator.

d. Asphalt paving manufacturing plant.

e. Asphalt manufacturing plant.

f. Chemical plant which:

(1) Reacts or produces any organic liquids or gases.

(2) Produces sulfuric acid, nitric acid, phosphoric acid, or sulfur.