SACAQMD RULE 459 AUTO, TRUCK, & HVY EQPMNT REFINISHING OPS          
LAST AMENDED 03/07/96
          
          RULE 459 AUTOMOTIVE, TRUCK AND HEAVY EQUIPMENT
                      REFINISHING OPERATIONS
                     Adopted December 7, 1995
                     (Amended March 7, 1996)


                              INDEX

100 GENERAL
    101  PURPOSE
    102  APPLICABILITY
    110  EXEMPTION: AEROSOL CONTAINERS
    111  EXEMPTION: STENCIL COATINGS
    112  SEVERABILITY
    
200 DEFINITIONS
    201  ADHESION PROMOTER
    202  AEROSOL PAINT PRODUCT
    203  ANTIGLARE/SAFETY COATING
    204  BRIGHT METAL TRIM REPAIR COATING 
    205  CAMOUFLAGE COATING
    206  CATALYST
    207  CLEARCOAT
    208  COATING
    209  COLOR MATCH
    210  ELASTOMERIC MATERIALS
    211  ELECTROSTATIC APPLICATION
    212  ENCLOSED GUN CLEANER
    213  EXEMPT COMPOUNDS
    214  FINISHING
    215  GROUP I VEHICLES
    216  GROUP II VEHICLES
    217  HEAVY DUTY VEHICLES
    218  HIGH VOLUME - LOW PRESSURE APPLICATORS
    219  IMPACT-RESISTANT COATING
    220  LIGHT/MEDIUM DUTY VEHICLES
    221  METALLIC/IRIDESCENT TOPCOAT
    222  MIDCOAT
    223  MOBILE EQUIPMENT
    224  MULTI-STAGE TOPCOAT SYSTEM
    225  PRECOAT
    226  PRETREATMENT WASH PRIMER
    227  PRIMER
    228  PRIMER SEALER
    229  PRIMER SURFACER
    230  REFINISHING
    231  RUBBERIZED ASPHALTIC UNDERBODY COATING
    232  SPECIALTY COATINGS
    233  STENCIL COATING
    234  SURFACE PREPARATION AND CLEANUP MATERIALS
    235  TEMPORARY PROTECTIVE COATING
    236  TOPCOAT
    237  TRANSFER EFFICIENCY
         
               

    238  UNIFORM FINISH BLENDERS
    239  UTILITY BODY
    240  VOLATILE ORGANIC COMPOUNDS (VOC)

300 STANDARDS
    301  VEHICLE COATING LIMITS
    302  EMISSIONS CONTROL EQUIPMENT
    303  APPLICATION EQUIPMENT REQUIREMENT
    304  PROHIBITION OF SPECIFICATION
    305  PROHIBITION OF SALE
    306  SURFACE PREPARATION AND CLEANUP  REQUIREMENTS
    307  SPECIALTY COATING LIMITATION
    308  PRECOAT LIMITATION

400 ADMINISTRATIVE REQUIREMENTS
    401  LABELING REQUIREMENTS
    402  OPERATION AND MAINTAINANCE PLAN
    403  PROCEDURE FOR PROCESSING OPERATION AND MAINTAINANCE PLAN
    404  CALCULATION FOR VOC MASS EMISSION RATE AND PERCENT CONTROL
         EFFICIENCY

500 MONITORING AND RECORDS
    501  SALES RECORDS
    502  RECORDKEEPING FOR USERS
             503  TEST METHODS100 GENERAL

    101  PURPOSE: To limit the emission of volatile organic
         compounds into the atmosphere from automotive, truck, or
         heavy equipment finishing or refinishing as defined in this
         rule.

    102  APPLICABILITY:  The provisions of this rule shall apply to
         the finishing or refinishing of Group I and Group II
         vehicles, their parts or components, as defined in this
         rule, and to the sale of coatings for finishing or
         refinishing of such vehicles, their parts or components,
         within the District.  The provisions of Rule 441, Organic
         Solvents, shall not apply to such operations as specified
         in this section.

    110  EXEMPTION: AEROSOL CONTAINERS:  The requirements of this
         rule shall not apply to aerosol paint products in 
         non-refillable aerosol containers having a capacity of one
         liter (1.1 quarts) or less.

    111  EXEMPTION: STENCIL COATINGS:  The requirements of this rule
         shall not apply to the application of stencil coatings, as
         defined in Section 233 of this rule. 

    112  SEVERABILITY:  If any section, subsection, sentence,
         clause, phrase, or portion of this rule is, for any reason,
         held invalid, unconstitutional, or unenforceable by any
         court of competant jurisdiction, such portion shall be
         deemed as a separate, distinct, and independent provision, 
         and such holding shall not affect the validity of the
         remaining portions thereof. 

200 DEFINITIONS

    201  ADHESION PROMOTER:  Any coating applied over both an
         existing non-sanded topcoat and the coated area immediately
         adjacent to the non-sanded topcoat, to promote the adhesion
         of a subsequent topcoat.  No topcoat, primer, primer
         sealer, or primer surfacer shall be classified as an
         adhesion promoter.

    202  AEROSOL PAINT PRODUCT:  A mixture of resins, pigments,
         liquid solvents and gaseous propellants, packaged in a 
         non-refillable can.

    203  ANTIGLARE/SAFETY COATING: Any coating which minimizes light
         reflection for safety purposes.

    204  BRIGHT METAL TRIM REPAIR COATING:  Any coating applied
         directly to chrome-plated metal surfaces for the purpose of
         appearance.

    205  CAMOUFLAGE COATING: Any coating applied to motor vehicles
         to conceal such vehicles from detection.

    206  CATALYST: Any substance whose presence initiates the
         reaction between chemical compounds.

    207  CLEARCOAT:  Any topcoat which contains no pigments or only
         transparent pigments and which is the final topcoat applied
         as a part of a multistage topcoat system.

    208  COATING: Any material which is applied to a surface and
         which forms a film in order to beautify and/or protect such
         surface, or in order to perform any of the functions
         described for Specialty Coatings, as defined in Section
         232, or any other function.

    209  COLOR MATCH: The ability of a repair coating to blend into
         an existing coating so that color difference is not
         visible.

    210  ELASTOMERIC MATERIALS: Any coatings which are specifically
         formulated and applied over coated or uncoated flexible
         plastic substrates for the purpose of adhesion.

    211  ELECTROSTATIC APPLICATION: The application of charged
         atomized paint droplets which are deposited by
         electrostatic attraction.

    212  ENCLOSED GUN CLEANER:    
         212.1   A device that is used for the cleaning of spray
                 guns, pots and hoses, that has an enclosed solvent
                 container, is not open to the ambient air when in
                 use, and has a mechanism to force the cleanup
                 material through the gun while the cleaner is in
                 operation; or
         212.2   A device that is used for the cleaning of spray
                 guns, pots and hoses, that has an enclosed solvent
                 container, uses non-atomized solvent flow to flush
                 the spray equipment and collects and returns the
                 discharged solvent to the enclosed container.

    213  EXEMPT COMPOUNDS:  The following compounds are exempt from
         the definition of VOC in Section 240:
         213.1   methane
         213.2   carbon dioxide
         213.3   carbon monoxide
         213.4   carbonic acid
         213.5   metallic carbides or carbonates
         213.6   ammonium carbonate
         213.7   1,1,1-trichloroethane
         213.8   methylene chloride
         213.9   dichlorotrifluoroethane (HCFC-123)
         213.10  2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124)
         213.11  trichlorofluoromethane (CFC-11)
         213.12  dichlorodifluoromethane (CFC-12)
         213.13  trichlorotrifluoroethane (CFC-113)
         213.14  dichlorotetrafluoroethane (CFC-114)
         213.15  chloropentafluoroethnae (CFC-115)
         213.16  pentafluoroethane (HFC-125)
         213.17  1,1,2,2-tetrafluoroethane (HFC-134)
         213.18  tetrafluoroethane (HFC-134a)
         213.19  dichlorofluoroethane (HCFC-141b)
         213.20  chlorodifluoroethane (HCFC-142b)
         213.21  1,1,1-trifluoroethane (HFC-143a)
         213.22  chlorodifluoromethane (HCFC-22)
         213.23  trifluoromethane ((HFC-23)
         213.24  1,1-difluoroethane (HFC-152a)
         213.25  The following four classes of perfluorocarbon
                 compounds:
            a.   Cyclic, branched, or linear, completely
                 fluorinated alkanes.
            b.   Cyclic, branched or linear, completely
                 fluorinated ethers, with no unsaturations.               
            c.   Cyclic, branched, or linear, completely  
                 fluorinated tertiary amines with no       
                 unsaturations.
            d.   Sulfur-containing perfluorocarbons with no
                 unsaturations and with sulfur bonds only to
                 carbon and fluorine.
         213.26  acetone
         213.27  volatile cyclic and linear methyl siloxanes (VMS)
         213.28  parachlorobenzotrifluoride (PCBTF).

    214  FINISHING: The coating of incomplete vehicles, their parts
         and components, or mobile equipment, for which the original
         coating was not applied from an original equipment 
         manufacturing plant coating assembly line.
 
    215  GROUP I VEHICLES: Passenger cars, heavy duty vehicle cabs
         and chassis, light/medium duty vehicles (including utility
         bodies), and motorcycles.  

    216  GROUP II VEHICLES: Public transit buses and mobile
         equipment.

    217  HEAVY DUTY VEHICLES: Any vehicle having a manufacturer's
         gross vehicle weight rating of over 10,000 pounds.

    218  HIGH VOLUME - LOW PRESSURE APPLICATORS: Equipment used to
         apply coatings by means of a gun which is designed to be
         operated and which is operated between 0.1 and 10 psig air
         pressure measured dynamically at the center of the air cap
         and at the air horns.

    219  IMPACT-RESISTANT COATING:  Any coating applied to a rocker
         panel for the purpose of chip resistance to road debris.

    220  LIGHT/MEDIUM DUTY VEHICLES: Any vehicle having a
         manufacturer's gross vehicle weight rating of 10,000 pounds
         or less.

    221  METALLIC/IRIDESCENT TOPCOAT: Any coating which contains
         more than 5.0 g/l (0.042 lb/gal) of metal or iridescent
         particles, as applied, where such particles are visible in
         the dried film.

    222  MIDCOAT:  Any semi-transparent topcoat which is the middle
         topcoat applied as part of a three-stage topcoat system.

    223  MOBILE EQUIPMENT: Any equipment which may be drawn or is
         capable of being driven on rails or on a roadway except for
         passenger cars, light/medium duty vehicles, motorcycles and
         heavy duty vehicles.  This includes but is not limited to
         trains, railcars, truck bodies, truck trailers, camper
         shells, mobile cranes, bulldozers, street cleaners, golf
         carts and implements of husbandry.

    224  MULTI-STAGE TOPCOAT SYSTEM: A topcoat system composed of
         either a basecoat/clearcoat (two stage system), a
         basecoat/midcoat/clearcoat (three stage system), or a
         groundcoat/basecoat/midcoat/clearcoat (four stage system). 
         The calculation for the VOC content for the various coating
         systems shall be as follows:
         224.1   The VOC content of a two stage coating system shall
                 be calculated according to the following formula: 
         224.2   The VOC content of a three stage coating system
                 shall be calculated according to the following
                 formula:

         224.3   The VOC content of a four stage coating system
                 shall be calculated according to the  following
                 formula:

         Where: VOCTOTAL   is the sum of the VOC content, as
                           applied, and used to determine compliance
                           with the standards in Section 301.
                VOCGC      is the VOC content, as applied, of a
                           pigmented groundcoat or tinted primer
                           sealer.
                VOCBC      is the VOC content, as applied, of a
                           pigmented basecoat.
                VOCMC      is the VOC content, as applied, of a
                           translucent midcoat.
                2VOCCC     is two times the VOC content, as
                           applied, of a transparent clearcoat.

    225  PRECOAT:  Any coating which is applied to bare metal
         primarily to deactivate the metal surface prior to
         application of a primer surfacer.   Effective January 1,
         1997, a precoat shall be a coating that dries by oxidation
         or chemical polymerization, to exclude lacquer products. 

    226  PRETREATMENT WASH PRIMER: Any coating which contains a
         minimum of 0.5% percent acid by weight, is necessary to
         provide surface etching and is applied directly to bare
         metal surfaces to provide corrosion resistance and
         adhesion.

    227  PRIMER: Any coating applied prior to the application of a
         topcoat for the purpose of corrosion resistance and
         adhesion of the topcoat.

    228  PRIMER SEALER: Any coating applied for the purpose of
         sealing the underlying metal or   coating system prior to
         the application of a topcoat.

    229  PRIMER SURFACER: Any coating applied prior to the
         application of a topcoat for the purpose of corrosion
         resistance, adhesion of the topcoat, and which promotes a
         uniform surface by filling in the surface imperfections.

    230  REFINISHING: Any coating of vehicles, their parts and
         components, or mobile equipment, including partial body
         collision repairs, for the purpose of protection or
         beautification and which is subsequent to the original
         coating applied at an original equipment manufacturing
         plant coating assembly line.

    231  RUBBERIZED ASPHALTIC UNDERBODY COATING:  Any coating
         applied to wheel wells, the inside of door panels or
         fenders, the underside of a trunk or hood, or the underside
         of the motor vehicle itself for the purpose of sound
         deadening or protection.

    232  SPECIALTY COATINGS: Unique coatings and coatings which
         comply with the VOC limits in Section 301 with additives
         which are necessary due to unusual job performance
         requirements.  This coating may include, but is not limited
         to, adhesion promoters, uniform finish blenders,
         elastomeric materials, gloss flatteners, bright metal trim
         repair, and anti-glare/safety coatings.

    233  STENCIL COATING:  Any ink or pigmented coating which is
         rolled or brushed onto a template or a stamp in order to
         add identifying letters, symbols, and/or numbers to motor
         vehicles, mobile equipment, or their parts and components.

    234  SURFACE PREPARATION AND CLEANUP MATERIALS:  A VOC-containing 
         material applied to the surface of any substrate
         prior to any coating application and/or used in the cleanup
         of any equipment.

    235  TEMPORARY PROTECTIVE COATING: A coating applied for the
         purpose of protecting adjacent areas to that being painted
         from overspray.  The temporary protective coating is
         removed after primer or topcoat application.

    236  TOPCOAT: Any coating applied over a primer, primer system,
         or an original equipment manufacturer finish for the
         purpose of protection or appearance.

    237  TRANSFER EFFICIENCY: The ratio of the amount of coating
         solids adhering to the object being coated to the total
         amount of coating solids used in the application process,
         expressed as a percentage.

    238  UNIFORM FINISH BLENDERS:  Any coating which is applied for
         the purpose of blending a paint overspray area of a
         repaired topcoat to match the appearance of an adjacent
         existing topcoat.

    239  UTILITY BODY: A body designed for and mounted on a light or
         medium duty truck or van.

    240  VOLATILE ORGANIC COMPOUNDS (VOC): Compounds containing at
         least one atom of carbon except for the compounds listed in
         Section 213. 

300 STANDARDS

    301  VEHICLE COATING LIMITS:
         301.1   GROUP I VEHICLES: A person shall not apply to Group
                 I Vehicles, their parts and components (except as
                 provided for in Section 301.3), or Group II
                 Vehicles where color match is required, any coating
                 with a volatile organic compound content in excess
                 of the following limits.  Volatile organic compound
                 content of the applied coating shall be determined
                 as grams of VOC per liter (pounds of VOC per
                 gallon) of coating as-applied, less water and
                 exempt compounds,  in accordance with Sections
                 503.1 and 503.3:

                            VOC CONTENT                 VOC CONTENT
                           
                            g/l (lbs/gal),              g/l (lbs/gal),
                            less water and              less water and
                            exempt compounds            exempt compounds             
                                                           
COATING                     January 1, 1997             January 1, 1998
                                                           
Precoat                         600 (5.0)                   600 (5.0)
Pretreatment Wash Primer        780 (6.5)                   780 (6.5)
Primer/Primer Surfacer          340 (2.8)                   250 (2.1)
Primer Sealer                   600 (5.0)                   420 (3.5)
Solid Color Topcoat             600 (5.0)                   420 (3.5)
Metallic/Iridescent Topcoa      600 (5.0)                   520 (4.3)
Multi-stage Topcoat System      600 (5.0)                   540 (4.5)
Specialty Coating               840 (7.0)                   840 (7.0)
Temporary Protective Coating     60 (0.5)                    60 (0.5)

301.2   GROUP II VEHICLES: A person shall not apply to
                 Group II vehicles and equipment, or their parts and
                 components where color match is not required, any
                 coating with a volatile organic compound content in
                 excess of the following limits.  Volatile organic
                 compound content of the applied coating, shall be
                 determined as grams of VOC per liter (pounds of VOC
                 per gallon) of coating as-applied, less water and
                 exempt compounds,  in accordance with Sections
                 503.1 and 503.3:
 
                               VOC CONTENT             VOC CONTENT
                               g/l (lbs/gal),          g/l (lbs/gal),
                               less water and          less water and
                               exempt compounds        exempt compounds
COATING                        January 1, 1997        January 1,1998 

Precoat                        600 (5.0)                 600 (5.0)     
Pretreatment Wash Primer       780 (6.5)                 780 (6.5)
Primer                         340 (2.8)                 250 (2.1)
Topcoat                        420 (3.5)                 420 (3.5)
Metallic/Iridescent Topcoat    420 (3.5)                 420 (3.5)
Camouflage                     420 (3.5)                 420 (3.5)
Specialty Coating              840 (7.0)                 840 (7.0)
Temporary Protective Coating    60 (0.5)                  60 (0.5)

301.3   UTILITY BODY REQUIREMENTS:

301.3.1 The standards set forth in Section 301.1
        shall apply to the coating of utility bodies 
        provided:
                    a.  the coating is required to match that of
                        the vehicles upon which they will be
                        mounted, and;
                    b.  the coating of utility bodies is less
                        than or equal to 20 utility bodies per
                        day.
            301.3.2 If the conditions of 301.3.1 (a) and (b) are
                    not met then the coating of utility bodies is
                    subject to Section 301.2.
     
    302  EMISSIONS CONTROL EQUIPMENT: As an alternative to the
         coating limits identified in Section 301, a person may use
         air pollution control equipment, subject to the approval of
         the Air Pollution Control Officer, that provides an overall
         system efficiency (collection efficiency, as determined in
         Section 503.5, multiplied by control efficiency, as
         determined in Section 503.4) of not less than 85%.

    303  APPLICATION EQUIPMENT REQUIREMENT: 
         303.1   A person shall not apply any coating to any Group I
                 or Group II vehicles or their parts and components
                 unless one of the following application methods is
                 used:
            a.   Electrostatic application equipment
            b.   High Volume Low Pressure spray equipment
            c.   Any other equivalent method which has been
                 approved in writing to the Air Pollution Control
                 Officer and submitted to and approved by the U.S.
                 EPA.
         303.2   Effective July 1, 1996, a training program shall be
                 initiated for the use of such equipment as listed
                 in Section 303.1 above.
         303.3   Effective January 1, 1997, such equipment as listed
                 in Section 303.1 above shall be used for the
                 application of primers, pretreatment wash primers,
                 precoats, primer surfacers, and primer sealers.
         303.4   Effective January 1, 1998, such equipment as listed
                 in Section 303.1 above shall be used for the
                 application of all coatings subject to this rule. 

    304  PROHIBITION OF SPECIFICATION:  No person shall require for
         use or specify the application of a coating, or surface
         preparation or cleanup material, on Group I vehicles or
         their parts or components, or Group II vehicles or their
         parts or components, if such use or application is
         prohibited by any of the provisions of this rule.  The
         prohibition of this Section shall apply to all written or
         oral contracts under the terms of which any coating is to
         be applied to Group I vehicles or their parts or
         components, or Group II vehicles or their parts or
         components, at any physical location within the District.

    305  PROHIBITION OF SALE:  A person shall not supply, sell,
         solicit, or offer for sale within the District after the
         applicable dates specified in Sections 301 and 306.4, any
         coating, or surface preparation or cleanup material, for
         Group I vehicles or their parts or components, or Group II
         vehicles or their parts or components, that has a VOC
         content, as determined by the method specified in Section
         503.1, that exceeds the limits in Sections 301 and 306.4.

    306  SURFACE PREPARATION AND CLEANUP REQUIREMENTS:  Any person
         subject to this rule shall comply with the following
         requirements:
         306.1   Effective January 1, 1996, closed containers shall
                 be used for the disposal of cloth, sponges,  or
                 paper used for surface preparation, cleanup and
                 coating removal.  
         306.2   Effective January 1, 1996, VOC-containing materials
                 are to be stored in containers which are closed
                 when not in use. 
         306.3   Effective January 1, 1997, a person shall not use
                 VOC-containing materials for the cleanup of
                 equipment used in coating operations unless the
                 equipment is disassembled and cleaned in an
                 enclosed system as defined in Section 212 of this
                 rule.
         306.4   Effective January 1, 1997, a person shall not
                 perform surface preparation, clean up or coating
                 removal with a material containing Volatile Organic
                 Compounds in excess of 72 grams per liter (0.6
                 pounds per gallon), less water and exempt
                 compounds.  This limit shall not apply to surface
                 preparation material applied from a hand-held spray
                 bottle for the removal of road tar from the
                 vehicle, or used to clean plastic parts.  The VOC
                 content of surface preparation material used to
                 clean plastic parts shall not exceed 780 grams per
                 liter (6.5 pounds per gallon), less water and
                 exempt compounds.
     
    307  SPECIALTY COATING LIMITATION: Effective January 1, 1997,
         use of all specialty coatings except antiglare/safety
         coatings shall not exceed 5% of all coatings applied, on a
         monthly basis.

    308  PRECOAT LIMITATION:  Effective January 1, 1997, a person
         shall not use precoat in excess of 25%, by volume, of the
         amount of primer surfacer applied in conjunction with the
         precoat, on a monthly basis. 

400 ADMINISTRATIVE REQUIREMENTS

    401  LABELING REQUIREMENTS:  Sellers of any coating or surface
         preparation or cleanup material subject to this rule shall
         provide the maximum VOC content of the coating  or surface
         preparation or cleanup material, after any mixing or
         thinning as recommended by the manufacturer, on product
         data sheets made available to the purchaser at the time of
         sale.  The VOC content provided shall be determined
         pursuant to Section 503.1.

    402  OPERATION AND MAINTENANCE PLAN:  Any person using emissions
         control equipment pursuant to Section 302 must submit an
         Operation and Maintenance Plan for the emissions control
         equipment to the Air Pollution Control Officer for
         approval. The Plan shall specify operation and maintenance
         procedures which will demonstrate continuous operation and
         compliance of the emissions control equipment during
         periods of emissions-producing operations.  The Plan shall
         also specify which daily records must be kept to document
         these operations and maintenance procedures.  These records
         shall comply with the requirements of Section 502.  The
         Plan shall be implemented upon approval by the Air
         Pollution Control Officer.

    403  PROCEDURE FOR PROCESSING OPERATION AND MAINTENANCE PLAN:  
         403.1   APPROVAL OF PLAN:  The Air Pollution Control
                 Officer shall determine whether the Operation and
                 Maintenance Plan meets the requirements of Section
                 402 not later than 30 days after receipt of the
                 Plan, or within a longer period of time agreed upon
                 by the parties.  The Air Pollution Control Officer
                 shall approve an Operation and Maintenance Plan
                 unless it fails to demonstrate continuous
                 operations of the emissions control equipment
                 during periods of emissions producing operations,
                 according to the standards set forth in Section
                 302, and/or it fails to specify which daily
                 records, in accordance with the requirements of
                 Section 502, are to be kept to document the
                 operation and maintenance procedures set forth in
                 the Plan.
         403.2   REVISION OF PLAN:  If the Air Pollution Control
                 Officer does not approve an Operation and
                 Maintenance Plan, the source shall receive written
                 notice of the deficiency, and shall have an
                 additional 30 days from the date of the
                 notification of the deficiency to correct and
                 resubmit the Operation and Maintenance Plan.  The
                 decision of the Air Pollution Control Officer
                 regarding the resubmitted Operation and Maintenance
                 Plan shall be final.  Failure to correct the
                 deficiency in an Operation and Maintenance Plan
                 upon resubmittal shall constitute a violation of
                 this rule that is subject to the penalties set
                 forth in Health and Safety Code section 42400 et
                 seq.

    404  CALCULATION FOR VOC MASS EMISSION RATE AND PERCENT CONTROL
         EFFICIENCY:  The VOC mass emission rate shall be calculated
         both upstream and downstream of the emissions control
         device based on the respective VOC mass concentration and
         volumetric flowrate, pursuant to Section 503.4 and the
         following equation: 

                    M =  (Q)(C)(60 min/hr)     

            Where:  M = VOC mass emission rate, in lb/hr.
                    Q = the volumetric flowrate of the exhaust
                        stack, in scfm.
                    C = the VOC mass concentration, in lb/scf, as
                        measured by EPA Method 25.

         The percent control efficiency is calculated as follows:

                    % CE = [(MU - MD)  MU] X 100

          Where:    CE = control efficiency.
                    MU = the upstream VOC mass emission rate, in lb/hr.
                    MD = the downstream VOC mass emission rate, in lb/hr.
    
500 MONITORING AND RECORDS

    501  SALES RECORDS:  Effective April 1, 1996, any person selling
         at a point of sale located within the District coatings or
         surface preparation or cleanup materials which are subject
         to this rule shall maintain the following records on-site
         for a continuous two-year period, and make such records
         available on request to the Air Pollution Control Officer: 
         501.1   Credit account sales shall be recorded  to  include
                 the following information:
            a.   The business name, street address, phone number,
                 and business license number.  This information
                 may be supplied via the sales account, provided
                 that the information is contained under the
                 account.
            b.   The volume and type of surface preparation or
                 cleanup material and coating sold.  Coating type
                 shall be designated according to the coating
                 categories in Section 301. 
            c.   The VOC content of the surface preparation or
                 cleanup material and coating sold, on an as-applied 
                 (ready to spray) basis.
         501.2   Cash sales shall be recorded to  include the
                 information required in Section 501.1 above, as
                 well as the name and driver's license number of the
                 individual making the purchase at the point of
                 sale.  The information required in Section 501.1
                 may be provided via a sales account, provided that
                 the information is contained under the account.  

    502  RECORDKEEPING FOR USERS:  In addition to any applicable
         recordkeeping requirements of either Rule 202, New Source
         Review, Rule 209, Limiting Potential to Emit, or any other
         District rule which may be applicable, effective January 1,
         1997, any person applying coatings, or surface preparation
         or cleanup materials subject to any provision of this rule
         shall maintain the following records and make such records
         available on request to the Air Pollution Control Officer:
         502.1   LIST OF COATINGS:  A list of currently used
                 coatings, and surface preparation and cleanup
                 materials shall be maintained which includes all of
                 the following items:
            a.   The product name/code and type of coating or
                 surface preparation or cleanup material,
                 including the coating category types in Section
                 301 as applicable.
            b.   The VOC content of the coating or surface
                 preparation or cleanup material as applied, as
                 determined according to Section 503.1.
            c.   The actual mixing ratio used for the coating.
            d.   Method of application of the coating or surface
                 preparation or cleanup material.
            e.   The name and address of the company from which
                 the coating or surface preparation or cleanup
                 material  was purchased.        
         502.2   PRECOAT LIMITATION:  Records of applied volume of
                 precoat, and primer surfacer used in conjuntion
                 with precoat, must be kept on a monthly basis to
                 demonstrate compliance with Section 308. 
         502.3   SPECIALTY COATING LIMITATION: Purchase invoices
                 must be retained to demonstrate compliance with
                 Section 307.
         502.4   RECORDS OF USAGE:  Records shall be maintained on
                 the following  basis:
            a.   Records of the type of coatings and surface
                 preparation or cleanup materials used shall be
                 maintained.  Coating type shall be designated
                 according to the coating categories in Section
                 301.  Records of beginning inventory, purchase
                 invoices, amount of manifested waste material,
                 and ending inventory shall be maintained for
                 coatings and surface preparation or cleanup
                 materials, to determine usage volumes.  The
                 volume of each coating used shall be aggregated
                 and recorded by coating type,  according to the
                 coating categories in Section 301.  
            b.   For sources which have total facility VOC
                 emissions greater than 5 tons per year, records
                 shall be maintained on a monthly basis.
            c.   For sources which have total facility VOC
                 emissions less than or equal to 5 tons per year, 
                 and were constructed after February 26, 1991,
                 records shall be maintained on a quarterly basis.
            d.   For sources which have total facility VOC
                 emissions less than or equal to 5 tons per year, 
                 and were constructed before February 26, 1991,
                 records shall be maintained on an annual basis.
            e.   If at any time during a reporting period under
                 Sections 502.4(b), 502.4(c), or 502.4(d) a source
                 uses a coating which does not comply with the
                 standards set forth in Section 301, the source
                 shall keep daily records regarding the use,
                 including the lack of use, of that non-compliant
                 coating during the applicable reporting period. 
                 
         502.5   EMISSIONS CONTROL EQUIPMENT:  Any person using
                 emissions control equipment pursuant to Section 302
                 as a means of complying with this rule shall
                 maintain such records as required by the Operation
                 and Maintenance Plan in Section 402 on a daily
                 basis, to include such records as required by
                 Sections 502.2, 502.3, and 502.4.
         502.6   DURATION OF RECORDS: Such records shall be
                 maintained on-site for a continuous two-year
                 period.

    503  TEST METHODS
         503.1   DETERMINATION OF VOC CONTENT: VOC content of
                 coatings shall be determined in accordance with EPA
                 Method 24 and Section 224 of this rule as
                 applicable.  VOC content of surface preparation and
                 cleanup materials shall be determined in accordance
                 with EPA Method 24.
         503.2   DETERMINATION OF ACID CONTENT:  The weight percent
                 acid in a pretreatment wash primer shall be
                 determined in accordance with ASTM D 1639-83.
         503.3   DETERMINATION OF COMPOUNDS EXEMPT FROM VOC
                 DEFINITION: Compounds exempted from the VOC
                 definition, as listed in Section 213 of this rule,
                 shall be determined in accordance with ASTM D 4457-85 
                 or ARB method 432.  If any of the
                 perfluorocarbons or volatile cyclic and linear
                 methyl siloxanes are being claimed as exempt
                 compounds, the person making the claim must state
                 in advance which compounds are present, and the
                 EPA-approved test method used to make the
                 determination of these compounds.
         503.4   DETERMINATION OF CONTROL EFFICIENCY:  Control
                 efficiency of the emissions control equipment shall
                 be determined in accordance with EPA Method 18, 25,
                 25A, EPA Method 2 or 2C (whichever is applicable),
                 and Section 404.  
         503.5   DETERMINATION OF COLLECTION EFFICIENCY:  Efficiency
                 of the collection system shall be determined in
                 accordance with EPA's "Guidelines for Determining
                 Capture Efficiency, January 9, 1995."
         503.6   DETERMINATION OF METALLIC CONTENT: Measurement of
                 metallic content shall be conducted and reported in
                 accordance with South Coast Air Quality Management
                 District Method 311, "Analysis of Percent Metal in
                 Metallic Coatings by Spectrographic Method."