SACAQMD RULE 209 LIMITING POTENTIAL TO EMIT
LAST REVISED 01/11/96
                
                Rule 209, LIMITING POTENTIAL TO EMIT
        (Adopted 11-02-95, Amended 1-11-96, Effective 1-1-98)

INDEX



100 GENERAL
    101  PURPOSE
    102  APPLICABILITY
    103  APPLICABILITY OF FEDERAL REQUIREMENTS
    110  EXEMPTION - RECORDKEEPING AND REPORTING FOR STATIONARY
         SOURCES WITH DE MINIMIS EMISSIONS OR SPECIFIED OPERATIONS
    111  EXEMPTION - PROCESS STATEMENT
    112  EXEMPTION - STATIONARY SOURCES SUBJECT TO DISTRICT RULE
         207, TITLE V -FEDERAL OPERATING PERMIT PROGRAM
    113  EXEMPTION - STATIONARY SOURCE WITH A LIMITATION ON
         POTENTIAL TO EMIT
    
200 DEFINITIONS

    201  12-MONTH PERIOD
    202  ACTUAL EMISSIONS
    203  ALTERNATIVE OPERATIONAL LIMIT
    204  EMISSION UNIT
    205  FEDERALLY ENFORCEABLE
    206  FUGITIVE EMISSIONS
    207  HAZARDOUS AIR POLLUTANT (HAP)
    208  MAJOR STATIONARY SOURCE OF HAZARDOUS AIR POLLUTANTS (HAPs)
    209  MAJOR STATIONARY SOURCE OF REGULATED AIR POLLUTANTS
    210  OWNER OR OPERATOR
    211  POTENTIAL TO EMIT
    212  PROCESS STATEMENT
    213  REGULATED AIR POLLUTANT
    214  TITLE V PERMIT
    215  UNITED STATES ENVIRONMENTAL PROTECTION AGENCY (U.S. EPA)
    216  VOLATILE ORGANIC COMPOUNDS

300 STANDARDS
    301  EMISSIONS LIMITATIONS
    302  PROVISION FOR AIR POLLUTION CONTROL EQUIPMENT
    303  ALTERNATIVE OPERATIONAL LIMIT

400 ADMINISTRATIVE REQUIREMENTS
    401  ALTERNATIVE OPERATIONAL LIMIT
    402  EVALUATION OF EMISSIONS LIMITATIONS
    403  APPLICATION SUBMITTAL TIMELINE

500 MONITORING AND RECORDS
    501  RECORDKEEPING REQUIREMENTS
             502  REPORTING REQUIREMENTS                    

100 GENERAL

    101  PURPOSE:  The purpose of this rule is to eliminate the need
         for certain stationary sources to obtain a Title V
         operating permit pursuant to District Rule 207, TITLE V -
         FEDERAL OPERATING PERMIT PROGRAM.  Stationary sources
         subject to this rule are those whose actual emissions are
         less than or equal to 50% of those of a major stationary
         source, but whose potential emissions are equal to or
         greater than the major stationary source thresholds.  These
         stationary sources must comply with emissions limitations
         set in this rule.
         
    102  APPLICABILITY:  This rule applies to any stationary source
         which would, if it did not comply with the limitations set
         forth in this rule, have a potential to emit air
         contaminants equal to or greater than the thresholds for a
         major stationary source of regulated air pollutants or a
         major stationary source of hazardous air pollutants (HAPs)
         listed in Section 112(b) of the Federal Clean Air Act and
         which meets one of the following requirements:
         102.1   In every 12-month period, the actual emissions from
                 the stationary source shall be less than or equal
                 to the emission limitations specified in Section
                 301; or
         102.2   In every 12-month period at least 90 percent of the
                 emissions from the stationary source are associated
                 with an operation limited by any one of the
                 alternative operational limits specified in Section
                 303.2.

         This rule shall be effective on January 1, 1998.  This rule
         shall not relieve any stationary source of its obligation
         to comply with provisions of any preconstruction permit
         that would otherwise be required, or any provision of a
         preconstruction permitting program.  A preconstruction
         permit may be required with conditions to ensure compliance
         with this rule.  Stationary sources electing not to comply
         with the requirements of this rule may be subject to the
         requirements of District Rule 207, TITLE V - FEDERAL
         OPERATING PERMIT PROGRAM.

    103  APPLICABILITY OF FEDERAL REQUIREMENTS:  A stationary source
         subject to this rule shall be subject to applicable federal
         requirements for a major stationary source, including
         District Rule 207, TITLE V - FEDERAL OPERATING PERMIT
         PROGRAM when either of  the following conditions occur:
         103.1   Commencing on the first day following a 12-month
                 period in which the stationary source exceeds any
                 applicable emissions limitations specified in
                 Section 301 or any applicable operational limit
                 specified in Section 303; or
         103.2   Commencing on the first day following a 12-month
                 period in which the owner or operator cannot
                 demonstrate that the stationary source is in
                 compliance with the limits in Section 301 or any
                 applicable alternative operational limits specified
                 in Section 303.

         Failure to comply with any of the applicable provisions of
         this rule shall constitute a violation of this rule.  Each
         day during which a violation of this rule occurs is a
         separate offense.
    
    110  EXEMPTION -  RECORDKEEPING AND REPORTING FOR STATIONARY
         SOURCES WITH DE MINIMIS EMISSIONS OR SPECIFIED OPERATIONS: 
         The recordkeeping and reporting requirements in Sections
         501 and 502 shall not apply to a stationary source with de
         minimis emissions or specified operations as set forth in
         either Section 110.1 or Section 110.2 below:
         110.1   De Minimis Emissions:  In every 12-month period,
                 the stationary source emits less than or equal to
                 the following quantities of emissions:
            a.   5 tons per year of a regulated air pollutant;
            b.   2 tons per year of a single HAP;
            c.   5 tons per year of any combination of HAP's; and
            d.   20 percent of any lesser threshold for a single
                 HAP that the U.S. EPA may establish by rule.
         110.2.  Specified Operations:  In every 12-month period, at
                 least 90 percent of the emissions from the
                 stationary source are associated with an operation
                 for which the throughput is less than or equal to
                 one of the quantities below:
            a.   1,400 gallons of any combination of solvent-containing 
                 materials but no more than 550 gallons
                 of any one solvent-containing material, providing
                 that the materials do not contain methyl
                 chloroform (111-trichloroethane), methylene
                 chloride (dichloromethane), tetrachloroethylene
                 (perchloroethylene), or trichloroethylene;
            b.   750 gallons of any combination of solvent-containing 
                 materials where the materials contain,
                 methyl chloroform (1,1,1-trichloroethane),
                 methylene chloride (dichloromethane),
                 tetrachloroethylene (perchloroethylene), or
                 trichloroethylene, but not more than 300 gallons
                 of any one solvent-containing material;
            c.   For coating materials which contain any HAPs, 
                 used at a spray emission unit(s), the total
                 annual usage of all VOC-containing materials
                 shall be less than or equal to the quantities
                 listed in Table 1.  If the coating materials used
                 contain any HAPs with different volatile organic
                 compound contents, the total combined annual
                 usage shall be less than or equal to the maximum
                 allowable usage for the coating material with the
                 highest volatile organic compound content.  When
                 using combination of coatings that contain any
                 HAPs and coatings that do not contain any HAPs,
                 the maximum allowable combined annual usage shall
                 be determined using Table 1 and shall be less
                 than or equal to the maximum allowable usage for
                 the coating material with the highest volatile
                 organic compound content;

                                      Table 1

        Volatile Organic Compound Content    Maximum Allowable Annual Usage

            (grams per liter as applied)           (gallons per year)

                 <=500                                   959
                 501 - 600                               799
                 601 - 700                               685
                 > 700                                   479

            d.   Where no HAP-containing materials are used at a
                 spray emission unit(s), the total annual usage of
                 all VOC-containing materials shall be less than
                 or equal to the quantities listed in Table 2
                 providing that all coating used at the stationary
                 source contain no HAPs. If coating materials used
                 have different volatile organic compound
                 contents, the total combined annual usage shall
                 be less than or equal to the maximum allowable
                 usage for the coating material with the highest
                 volatile organic compound content;

                                      Table 2

       Volatile Organic Compound Content       Maximum Allowable Annual Usage

          (grams per liter as applied)               (gallons per year)

                        <=500                         2397
                        501 - 600                     1997
                        601 - 700                     1712
                        > 700                         1198

            e.   4,400,000 gallons of gasoline dispensed from
                 equipment with phase I and II vapor recovery
                 systems;
            f.   470,000 gallons of gasoline dispensed from
                 equipment without Phase I and II vapor recovery
                 systems;
            g.   1,400 gallons of gasoline combusted;
            h.   16,600 gallons of diesel fuel combusted in
                 internal combustion engines;
            I.   500,000 gallons of distillate oil combusted in
                 boilers; or
            j 71,400,000 cubic feet of natural gas combusted.

    111  EXEMPTION - PROCESS STATEMENT:  A process statement as
         specified in Section 502.1, shall not be required of any
         stationary source which emits in every in every 12-month
         period less than or equal to the following quantities:
         111.1   For any regulated air pollutant:
            a.   25 tons per year including a regulated air
                 pollutant for which the District has a federal
                 area designation of attainment, unclassified,
                 transitional, or moderate nonattainment;
            b.   15 tons per year for a regulated air pollutant
                 for which the District has a federal area
                 designation of serious nonattainment; and
            c.   6.25 tons per year for a regulated air pollutant
                 for which the District has a federal area
                 designation of severe nonattainment.
         111.2   For HAPs:
            a.   2.5 tons per year of a single HAP;
            c.   6.25 tons per year of any combination of HAPs;
                 and
            d.   25 percent of any lesser threshold for a single
                 HAP as U.S. EPA may establish by rule.
         111.3   A stationary source previously exempt from
                 submitting a process statement under this Section
                 shall comply with the provisions of Section 502.1
                 if the stationary source exceeds the quantities
                 specified in Sections 111.1 or 111.2.

    112  EXEMPTION - STATIONARY SOURCES SUBJECT TO DISTRICT RULE
         207, TITLE V -FEDERAL OPERATING PERMIT PROGRAM:  This rule
         shall not apply to the following stationary sources:
         112.1   Any stationary source whose actual emissions,
                 throughput, or operation, at any time after
                 September 5, 1998, is greater than the quantities
                 specified in Sections 301 or 303 and which meets
                 the following conditions:
            a.   The owner or operator has notified the Air
                 Pollution Control Officer in writing at least 30
                 days prior to any exceedance that s/he will
                 submit an application for a Title V permit as
                 required by District Rule 207, TITLE V - FEDERAL
                 OPERATING PERMIT PROGRAM, or otherwise obtain
                 federally enforceable permit limits, including
                 but not limited to permit limits pursuant to
                 District Rule 210, SYNTHETIC MINOR SOURCE STATUS;
                 and
            b.   A complete Title V permit application is received
                 by the Air Pollution Control Officer, or the
                 permit action to otherwise obtain federally
                 enforceable limits is completed, within 12 months
                 of the date of notification.

            However, the stationary source may be immediately
            subject to applicable federal requirements, including,
            but not limited to, a maximum achievable control
            technology (MACT) standard;
         112.2   Any stationary source that has applied for a Title
                 V permit in a timely manner and in conformance with
                 District Rule 207, TITLE V - FEDERAL OPERATING
                 PERMIT PROGRAM, and is awaiting final action by the
                 District and U.S. EPA;
         112.3   Any stationary source required to obtain a Title V
                 operating permit under District Rule 207, TITLE V -
                 FEDERAL OPERATING PERMIT PROGRAM for any reason
                 other than being a major stationary source; or
         112.4   Any stationary source with a valid Title V permit.

         Notwithstanding Sections 112.2 and 112.4, nothing in this
         Section shall prevent any stationary source which has had
         a Title V permit from qualifying to comply with this rule
         in the future in lieu of maintaining an application for a
         Title V permit or upon rescission of a Title V permit if
         the owner or operator demonstrates to the Air Pollution
         Control Officer that the stationary source is in compliance
         with the emissions limitations in Section 301 or an
         applicable alternative operational limit in Section 303.

    113  EXEMPTION - STATIONARY SOURCE WITH A LIMITATION ON
         POTENTIAL TO EMIT:  This rule shall not apply to any
         stationary source which has a valid Permit to Operate with
         federally enforceable conditions or other federally
         enforceable limit that limits its potential to emit to
         below the applicable threshold(s) for a major stationary
         source as defined in Sections 208 and 209.

200 DEFINITIONS

    All terms shall retain the definitions provided under District
    Rule 207, TITLE V - FEDERAL OPERATING PERMIT PROGRAM, as
    applicable, unless otherwise defined herein.

    201  12-MONTH PERIOD:  A period of twelve consecutive months
         determined on a rolling basis with a new 12-month period
         beginning on the first day of each calendar month.

    202  ACTUAL EMISSIONS:  The emissions of a regulated air
         pollutant from a stationary source for every 12-month
         period.  Valid continuous emission monitoring data or
         source test data shall be preferentially used to determine
         actual emissions.  In the absence of valid continuous
         emissions monitoring data or source test data, the basis
         for determining actual emissions shall be:
         202.1   Throughputs of process materials;
         202.2   Throughputs of materials stored;
         202.3   Usage of materials;
         202.4   Data provided in manufacturer's product
                 specifications, material volatile organic content
                 reports or laboratory analyses;
         202.5   Other information requested in writing by the
                 applicable District, State or Federal regulations;
                 or
         202.6   Information requested in writing by the Air
                 Pollution Control Officer.

         All calculations of actual emissions shall use U.S. EPA,
         California Air Resources Board (CARB) or District approved
         methods, including emission factors and assumptions.

    203  ALTERNATIVE OPERATIONAL LIMIT:  A limit on a measurable
         parameter, such as hours of operation, throughput of
         materials, use of materials, or quantity of product, as
         specified in Section 303.

    204  EMISSION UNIT: Any article, machine, equipment, operation,
         contrivance or related groupings of such that may produce
         and/or emit any regulated air pollutant or hazardous air
         pollutant.

    205  FEDERALLY - ENFORCEABLE:  All limitations and conditions
         which are directly enforceable by U.S. EPA, including:
         205.1   District requirements developed pursuant to 40 CFR
                 Parts 60 (NSPS), 61 (NESHAP), 63 (NESHAP), 70
                 (State Title V Operating Permit Program), and 72
                 (Permits Regulation, Acid Rain);
         205.2   Requirements contained in California's State
                 Implementation Plan (SIP), that are applicable to
                 the District; and
         205.3   District permit requirements established pursuant
                 to 40 CFR Part 52.21 (PSD) or District permit
                 requirements established pursuant to 40 CFR Part
                 51, Subpart I (NSR) and approved by U.S. EPA into
                 the SIP.

    206  FUGITIVE EMISSIONS: Emissions which could not reasonably
         pass through a stack, chimney, vent, or other 
         functionally-equivalent opening.

    207  HAZARDOUS AIR POLLUTANT (HAP):  Any air pollutant listed
         pursuant to Section 112(b)  (42  U.S.C. Section 7412(b) of
         the Federal Clean Air Act.

    208  MAJOR STATIONARY SOURCE OF HAZARDOUS AIR POLLUTANTS (HAPs): 
         A stationary source that emits or has the potential to emit
         quantities equal to or exceeding the lesser of any of the
         following thresholds:
         208.3   10 tons per calendar year or more of a single HAP
                 listed in Section 112(b) of the Federal Clean Air
                 Act;
         208.4   25 tons per calendar year or more of any
                 combination of HAPs; or
         208.5   Any such lesser quantity of HAPs as U.S. EPA may
                 establish by rule for a HAP.

         Fugitive emissions of HAPs shall be considered in
         calculating emissions for stationary sources.  The
         definition of a major stationary source of radionuclides
         shall be specified by rule by U.S. EPA.

    209  MAJOR STATIONARY SOURCE OF REGULATED AIR POLLUTANTS:  A
         stationary source that emits or has the potential to emit
         a regulated air pollutant in quantities equal to or
         exceeding the lesser of any of the following thresholds:
         209.1   100 tons per calendar year of any regulated air
                 pollutant; and
         209.2   25 tons per calendar year of volatile organic
                 compounds or oxides of nitrogen.
    
         Fugitive emissions of these pollutants shall be considered
         in calculating total emissions  for stationary sources in
         accordance with 40 CFR Part 70.2.

    210  OWNER OR OPERATOR:  Any person who owns, leases, operates,
         controls, or supervises a stationary source.

    211  POTENTIAL TO EMIT:  For the purposes of this rule,
         potential to emit means the maximum physical and
         operational design capacity to emit a pollutant during each
         calendar year.  Limitations on the physical or operational
         design capacity, including emissions control devices and
         limitations on hours of operation, may be considered only
         if such limitations are federally enforceable. 

    212  PROCESS STATEMENT:  An annual report on permitted emission
         units from an owner or operator of a stationary source
         certifying under penalty of perjury the following:
         212.1   Throughputs of process materials;
         212.2   Throughputs of materials stored;
         212.3   Usage of materials;
         212.4   Fuel usage;
         212.5   Any available continuous emissions monitoring data;
         212.6   Hours of operation; and
         212.7   Any other information required by this rule or
                 requested in writing by the Air Pollution Control
                 Officer.

    213  REGULATED AIR POLLUTANT:  Any of the following air
         pollutants are regulated:
         213.1   Oxides of nitrogen and volatile organic compounds;
         213.2   Any pollutant for which a national ambient air
                 quality standard has been promulgated under Title I
                 of the Federal Clean Air Act;
         213.3   Any pollutant that is regulated under any standard
                 promulgated under Section 111 (42 U.S.C. Section
                 7411) of the Federal Clean Air Act, including New
                 Source Performance Standards in 40 CFR Part 60;
         213.4   Any Class I or II substance subject to a standard
                 promulgated under or established by Title VI of the
                 Federal Clean Air Act;
         213.5   Any pollutant that is subject to any standard or
                 other requirement promulgated pursuant to Sections
                 112 (42 U.S.C. Section 7412) of the Federal Clean
                 Air Act, including:
            a.   Any pollutant listed pursuant to Section 112(r)
                 (Prevention of Accidental Release) shall be
                 considered a regulated air pollutant upon
                 promulgation of the list;
            b.   Any HAP subject to a standard or other
                 requirement promulgated by the U.S. EPA pursuant
                 to Sections 112(d) or adopted by the District
                 pursuant to Sections 112(g) and (j) shall be
                 considered a regulated air pollutant for all
                 sources or categories of sources:
              1. Upon promulgation of the standard or
                 requirement; or
              2. 18 months after the standard or requirement
                 was scheduled to be promulgated pursuant to
                 Section 112(e)(3); and
            c.   Any HAP subject to a District case-by-case
                 emissions limitation determination for a new or
                 modified source, prior to the U.S. EPA
                 promulgation or scheduled promulgation of an
                 emissions limitation shall be considered a
                 regulated air pollutant when the determination is
                 made pursuant to Section 112(g)(2) of the Federal
                 Clean Air Act.  In case-by-case emissions
                 limitation determinations, the HAP shall be
                 considered a regulated air pollutant only for the
                 individual source for which the emissions
                 limitation determination was made.

    214  TITLE V PERMIT:   A permit issued, renewed, amended, or
         revised pursuant to District Rule 207, TITLE V - FEDERAL
         OPERATING PERMIT PROGRAM.

    215  UNITED STATES ENVIRONMENTAL PROTECTION AGENCY (U.S. EPA):
         The Administrator or appropriate delegatee of the United
         States Environmental Protection Agency.

    216  VOLATILE ORGANIC COMPOUND:  Any compound containing at
         least one atom of carbon as defined in 40 CFR Part
         51.100(s), except those exempt compounds listed in 40 CFR
         Part 51.100(s).

300 STANDARDS

    301  EMISSIONS LIMITATIONS:  Unless the owner or operator has
         chosen to operate the stationary source under an
         alternative operational limit specified in Section 303, any
         stationary source subject to the requirements of this rule
         shall emit in every 12-month period less than or equal to
         the following quantities of emissions:
         301.1.  50 percent of the major stationary source
                 thresholds for regulated air pollutants (excluding
                 HAP's);
         301.2   5 tons per year of a single HAP;
         301.3   12.5 tons per year of any combination of HAP's; and
         301.4   50 percent of any lesser threshold for a single HAP
                 as U.S. EPA may establish by rule.

    302  PROVISION FOR AIR POLLUTION CONTROL EQUIPMENT:
          302.1  The owner or operator of a stationary source may
                 take into account the operation of air pollution
                 control equipment on the capacity of the stationary
                 source to emit an air contaminant if the equipment
                 is required by Federal, State, or District rules
                 and regulations or permit terms or conditions. 
                 This provision shall not apply after January 1,
                 1999 unless such operational limitation is
                 federally enforceable or unless the District Board
                 specifically extends this provision and it is
                 submitted to U.S. EPA.  Such extension of the
                 provision shall be valid unless, and until, U.S.
                 EPA disapproves it. 
         302.2   The owner or operator of the stationary source
                 shall maintain and operate such air pollution
                 control equipment in a manner consistent with good
                 air pollution control practice for minimizing
                 emissions and in accordance with the requirements
                 of such Federal, State or District rules and
                 regulations or permit terms or conditions.

    303  ALTERNATIVE OPERATIONAL LIMIT:
         303.1   The owner or operator may operate the permitted
                 emission units at a stationary source subject to
                 this rule under any one of the alternative
                 operational limits in Section 303.2, provided that
                 at least 90 percent of the stationary source's
                 actual emissions in every 12-month period are
                 associated with the operation(s) limited by the
                 alternative operational limit.
         303.2   Upon choosing to operate a stationary source,
                 subject to this rule, under any one of the
                 following alternative operational limits, the owner
                 or operator shall operate the stationary source in
                 compliance with the alternative operational limit
                 and comply with the recordkeeping and reporting
                 requirements specified in Sections 501.6, 502.1,
                 and 502.2:
            a.   Gasoline Dispensing Facility Equipment with Phase
                 I and II Vapor Recovery Systems:  The number of
                 gallons of gasoline dispensed shall be less than
                 or equal to 7,000,000 gallons in every 12-month
                 period.
            b.   Degreasing or Solvent-Using Unit:  The total
                 usage for the solvent-containing material shall
                 not exceed the following limits:
              1. If the solvents do not include methyl
                 chloroform (1,1, 1-trichloroethane),
                 methylene chloride (dichloromethane),
                 tetrachloroethylene (perchloroethylene), or
                 trichloroethylene, the number of gallons used
                 in every 12-month period shall be less than
                 or equal to 5,400 gallons for any combination
                 of solvent-containing materials and shall be
                 less than or equal to 2,200 gallons for any
                 one solvent-containing material.
              2. If the solvents include methyl chloroform
                 (1,1,1-trichloroethane), methylene chloride
                 (dichloromethane), tetrachloroethylene
                 (perchloroethylene), or trichloroethylene,
                 the number of gallons used in every 12-month
                 period shall be less than or equal to 2,900
                 gallons of any combination of solvent-containing 
                 materials and shall be less than
                 or equal to 1,200 gallons of any one solvent-containing 
                 material.
            c.   Paint Spray Emission Unit:  The total usage rate
                 of all VOC-containing materials, including but
                 not limited to, coatings, thinners, reducers, and
                 cleanup solution shall be less than or equal to
                 the following:
              
              1. For coating materials which contain any HAPs, 
                 used at a spray emission unit(s), the total
                 annual usage of all VOC-containing materials
                 shall be less than or equal to the quantities
                 listed in Table 3.  If the coating materials
                 used contain any HAPs with different volatile
                 organic compound contents, the total combined
                 annual usage shall be less than or equal to
                 the maximum allowable usage for the coating
                 material with the highest volatile organic
                 compound content.  When using combination of
                 coatings that contain any HAPs and coatings
                 that do not contain any HAPs, the maximum
                 allowable combined annual usage shall be
                 determined using Table 3 and shall be less
                 than or equal to the maximum allowable usage
                 for the coating material with the highest
                 volatile organic compound content;
                                      





                                      Table 3

       Volatile Organic Compound Content       Maximum Allowable Annual Usage

          (grams per liter as applied)                (gallons per year)

                        <=500                         3835
                        501 - 600                     3195
                        601 - 700                     2739
                        > 700                         1917

              2. Where no HAP-containing materials are used at
                 a spray emission unit(s), the total annual
                 usage of all VOC-containing materials shall
                 be less than or equal to the quantities
                 listed in Table 4 providing that all coating
                 used at the stationary source contain no
                 HAPs. If coating materials used have
                 different volatile organic compound contents,
                 the total combined annual usage shall be less
                 than or equal to the maximum allowable usage
                 for the coating material with the highest
                 volatile organic compound content.

                                      Table 4

         Volatile Organic Compound Content      Maximum Allowable Annual Usage

           (grams per liter as applied)                (gallons per year)

                        <=500                         9586
                        501 - 600                     7989
                        601 - 700                     6847
                        > 700                         4793

            d.   Diesel-Fueled Emergency Standby Engine(s) with
                 Output Less Than 1,000 Brake Horsepower:  The
                 number of operating hours for the emergency
                 standby engine(s) as defined in Rule 412,
                 STATIONARY INTERNAL COMBUSTION ENGINES, shall be
                 less than or equal to 1300 hours in every 12-month 
                 period or the diesel fuel usage shall be
                 less than or equal to 66,000 gallons of diesel
                 fuel in every 12-month period.

400 ADMINISTRATIVE REQUIREMENTS

    401  ALTERNATIVE OPERATIONAL LIMIT:  The owner or operator of a
         stationary source subject to this rule operating under an
         alternative operational limit pursuant to Section 303 shall
         obtain any necessary permits prior to commencing any
         physical or operational change or activity which will
         result in an exceedance of an applicable operational limit
         specified in Section 303.2.

    402  EVALUATION OF EMISSIONS LIMITATIONS
         402.1   The Air Pollution Control Officer shall evaluate a
                 stationary source's compliance with the emission
                 limitations in Section 301 annually.  In performing
                 the evaluation, the Air Pollution Control Officer
                 shall consider any annual process statement
                 submitted pursuant to Section 502.1.
         402.2   In the absence of valid continuous emission
                 monitoring data or source test data, actual
                 emissions shall be calculated using emissions
                 factors approved by the U.S. EPA, CARB, or the Air
                 Pollution Control Officer.
         402.3   Unless the owner or operator has chosen to operate
                 the stationary source under an alternative
                 operational limit specified in Section 303, the
                 owner or operator of a stationary source subject to
                 this rule shall obtain any necessary permits prior
                 to commencing any physical or operational change or
                 activity which will result in actual emissions that
                 exceed the limits specified in Section 301.

    403  APPLICATION SUBMITTAL TIMELINE
         403.1   The owner or operator of a stationary source
                 subject to the requirements of Section 502.1 shall
                 submit to the Air Pollution Control Officer an
                 Authority to Construct application for modification
                 of the Permit to Operate pursuant to Rule 201,
                 GENERAL PERMIT REQUIREMENTS no later than January
                 1, 1998 and shall pay any appropriate fees pursuant
                 to Rule 301, PERMIT FEES, STATIONARY SOURCES.

500 MONITORING AND RECORDS

    501  RECORDKEEPING REQUIREMENTS:  Beginning September 5, 1998,
         the owner or operator of a stationary source subject to
         this rule shall comply with the applicable recordkeeping
         requirements in this section.  The owner or operator of a
         stationary source shall keep and maintain records for each
         permitted emission unit or groups of permitted emission
         units sufficient to determine actual emissions.  Such
         information shall be summarized in a monthly log,
         maintained onsite for five years, and be made available to
         District, CARB, or U.S. EPA staff upon request. 
         Additionally, the recordkeeping requirements of this rule
         shall not replace any recordkeeping requirements contained
         in an operating permit or in an applicable District, State,
         or Federal rule or regulation.
         501.1   Coating/Solvent Emission Unit:  The owner or
                 operator of a stationary source subject to this
                 rule that contains a coating/solvent emission unit
                 or uses a coating, solvent, ink or adhesive shall
                 keep and maintain the following records:
            a.   A current list of all coatings, solvents, inks
                 and adhesives in use.  This list shall include
                 information on the manufacturer, brand, product
                 name or code, VOC content in grams per liter or
                 pounds per gallon, HAPs content in grams per
                 liter or pounds per gallon, or manufacturer's
                 product specifications, material VOC content
                 reports or laboratory analysis providing this
                 information;
            b.   A description of any equipment used in the
                 coating/solvent application, including type, make
                 and model; maximum design process rate or
                 throughput; control device(s) type and
                 description (if any); and a description of the
                 coating/solvent application/drying method(s)
                 employed;
            c.   A monthly record of beginning inventory,
                 purchases, amount of manifested waste material,
                 and ending inventory shall be maintained for
                 coatings, inks, adhesives, and surface
                 preparation or clean up material to determine
                 usage volumes; and
            d.   All purchase orders, invoices, and other
                 documents to support information in the monthly
                 log.
         501.2   Organic Liquid Storage Unit:  The owner or operator
                 of a stationary source subject to the requirements
                 of this rule that contains a permitted organic
                 liquid storage unit shall keep and maintain the
                 following records:
            a.   A monthly log identifying the liquid stored and
                 monthly throughput; and
            b.   Information on the tank design and specifications
                 including control equipment.
         501.3   Combustion Emission Unit:  The owner or operator of
                 a stationary source subject to the requirements of
                 this rule that contains a combustion emission unit
                 shall keep and maintain the following records:
            a.   Information on equipment type, make and model,
                 maximum design process rate or maximum power
                 input/output, minimum operating temperature (for
                 thermal oxidizers) and capacity, control
                 device(s) type and description (if any) and all
                 source test information;
            b.   A monthly log of hours of operation, fuel type,
                 fuel usage, fuel heating value (for non-fossil
                 fuels; in terms of BTU/lb or BTU/gal), percent
                 sulfur for fuel oil and coal, and percent
                 nitrogen for coal.
         501.4   Emission Control Unit:  The owner of operator of a
                 stationary source subject to the requirements of
                 this rule that contains an emission control unit
                 shall keep and maintain the following records:
            a.   Information on equipment type and description,
                 make and model, and emission units served by the
                 control unit;
            b.   Information on equipment design including where
                 applicable:  pollutants(s) controlled; control
                 effectiveness; maximum design or rated capacity;
                 inlet and outlet temperatures, and concentrations
                 for each pollutant controlled; catalyst data
                 (type, material, life, volume, space velocity,
                 ammonia injection rate and temperature); baghouse
                 data (design, cleaning method, fabric material,
                 flow rate, air/cloth ratio); electrostatic
                 precipitator data (number of fields, cleaning
                 method, and power input); scrubber data (type,
                 design, sorbent type, pressure drop); other
                 design data as appropriate; all source test
                 information; and
            c.   A monthly log of hours of operation including
                 notation of any control equipment breakdown,
                 upsets, repairs, maintenance and any other
                 deviations from design parameters.
         501.5   General Emission Unit:  The owner of operator of a
                 stationary source subject to the requirements of
                 this rule that contains an emission unit not
                 included in Sections 501.1 through 501.4 shall keep
                 and maintain the following records:
            a.   Information on the process and equipment
                 including the following: equipment type,
                 description, make and model; maximum design
                 process rate or throughput; control device(s)
                 type and description (if any);
            b.   Any additional information requested in writing
                 by the Air Pollution Control Officer;
            c.   A monthly log of operating hours, each raw
                 material used and its amount, each product
                 produced and its production rate; and
            d.   Purchase orders, invoices, and other documents to
                 support information in the monthly log.
         501.6   Alternative Operational Limit:  In lieu of the
                 recordkeeping requirements of Sections 501.1
                 through 501.5, the owner or operator of a
                 stationary source subject to the requirements of
                 this rule, operating under an alternative
                 operational limit pursuant to Section 303, shall
                 maintain all purchase orders, invoices, and other
                 documents to support information required to be
                 maintained in a monthly log.  Records required
                 under this section for the following equipment
                 shall be maintained onsite for five years and be
                 made available to the District, CARB, or U.S. EPA
                 staff upon request:
            a.   Gasoline Dispensing Facilities:  The owner or
                 operator shall maintain onsite a monthly log of
                 gallons of gasoline dispensed in the preceding
                 month with a monthly calculation of the total
                 gallons dispensed in the previous 12 months.  A
                 copy of the monthly log shall be submitted to the
                 Air Pollution Control Officer at the time of
                 annual permit renewal.  The owner or operator
                 shall certify that the log is accurate and true.
            b.   Degreasing or Solvent-Using Unit:  The owner or
                 operator shall maintain onsite a monthly log of
                 amount and type of solvent used in the preceding
                 month with a monthly calculation of the total
                 gallons used in the previous 12 months.  A copy
                 of the monthly log shall be submitted to the Air
                 Pollution Control Officer at the time of annual
                 permit renewal. The owner or operator shall
                 certify that the log is accurate and true. 
            c.   Paint Spray Emission Unit:  The owner or operator
                 shall maintain onsite a monthly  record of
                 beginning inventory, purchases, amount of
                 manifested waste material, and ending inventory
                 for coatings and surface preparation or clean up
                 material to determine usage volumes.  The monthly
                 record shall also contain  the manufacturer,
                 brand, product name or code, VOC content in grams
                 per liter, HAPs content in grams per liter, and
                 gallons used for each VOC-containing material
                 used in the preceding month with a monthly
                 calculation of the total gallons used in the
                 previous 12 months.  A copy of the monthly record
                 shall be submitted to the Air Pollution Control
                 Officer at the time of annual permit renewal. 
                 The owner or operator shall certify that is the
                 monthly records are accurate and true.
            d.   Diesel-Fueled Emergency Standby Engine(s) with
                 Output Less Than 1,000 Brake Horsepower:  The
                 owner or operator shall maintain onsite a monthly
                 log of hours of operation, gallons of fuel used,
                 and a monthly calculation of the total hours
                 operated and gallons of fuel used in the previous
                 12 months.  A copy of the monthly log shall be
                 submitted to the Air Pollution Control Officer at
                 the time of annual permit renewal. The owner or
                 operator shall certify that the log is accurate
                 and true.
         501.7   Sources Previously Exempt Under Section 110:  Any
                 stationary source previously exempt from the
                 recordkeeping and reporting requirements pursuant
                 to Section 110 shall comply with the applicable
                 provisions of Section 501 immediately after the
                 emissions from the stationary source exceed the
                 quantities specified in Section 110.

    502  REPORTING REQUIREMENTS
         502.1   Process Statement:  At the time of annual renewal
                 of the Permit to Operate under District Rule 201,
                 GENERAL PERMIT REQUIREMENTS, the owner or operator
                 of a stationary source subject to the requirements
                 of this rule shall submit to the Air Pollution
                 Control Officer a process statement.  The statement
                 shall be signed by the owner or operator and
                 certify that the information provided is accurate
                 and true.  A process statement shall not be
                 required if the emissions are less than or equal to
                 emissions levels specified under Section 111.  Any
                 additional information required to determine
                 compliance with this rule which is requested by the
                 Air Pollution Control Officer under this Section
                 shall be submitted to the Air Pollution Control
                 Officer within 30 days of the date of request.
         502.2   Exceedance of  Alternative Operational Limits:  The
                 owner or operator of the stationary source shall
                 report in writing within 24 hours to the Air
                 Pollution Control Officer any exceedance of any
                 applicable alternative operational limit under
                 Section 303.2.
         502.3   Exceedance of Emissions Limitations:  The owner or
                 operator of the stationary source shall report in
                 writing within 24 hours to the Air Pollution
                 Control Officer any exceedance of any applicable
                 emissions limitations under Section 301.
         502.4   Sources Previously Exempt Under Section 110: 
                 Within 30 days of a written request by the
                 District, CARB or U.S. EPA, the owner of operator
                 of a stationary source not maintaining records
                 pursuant to Section 501 shall demonstrate that the
                 stationary source's emissions or throughput are not
                 in excess of the applicable quantities set forth in
                 Section 110.1 or Section 110.2.
         502.5   Public Records:  No later than September 5, 2001,
                 the Air Pollution Control Officer shall make
                 available to the public upon request, for each
                 stationary source subject to the requirements of
                 this rule, information identifying the stationary
                 source and the provisions of this rule applicable
                 to the stationary source.