SDAPCD RULE X-BBB STDS.OF PERF.FOR THE RUBBR.TIRE MFG.INDUS.          
LAST REVISED 07/18/89

          
          Subpart BBB -  Standards of Performance for the Rubber Tire
                         Manufacturing Industry   (Adopted 3-14-89;  
                         Delegation Effective 7-18-89)


               RULE 260.540.  APPLICABILITY AND DESIGNATION OF
                              AFFECTED FACILITIES.

               (a)  The provisions of this subpart apply to the following
          affected facilities in rubber tire manufacturing plants:  each
          undertread cementing operation, each sidewall cementing opera-
          tion, each tread end cementing operation, each bead cementing
          operation, each green tire spraying operation, each Michelin-A
          operation, each Michelin-B opera-tion, and each Michelin-C-
          automatic operation.  This subpart only applies to the
          manufacture of new tires.

               (b)  The provisions of this subpart apply to each facility
          identified in Section (a) of this rule that commences
          construction or modification after January 20, 1983.

               (c)  Although the affected facilities listed under Rule
          260.540(a) are defined in reference to the production of
          components of a "tire", as defined under Rule 260.541(a), the
          percent emission reduction requirements and VOC use cutoffs
          specified under Rule 260.542(a)(1), (2), (6), (7)(iii), (7)(iv),
          (8), (9) and (10) refer to the total amount of VOC used (the
          amount allocated to the affected facility), including the VOC
          used in cements and organic solvent-based green tire spray
          materials for tire types not listed in Rule 260.541(p) definition
          of "tire".


               RULE 260.541.  DEFINITIONS

               All terms that are used in this subpart and are not defined
          below are given the same meaning as in the Act and in Subpart A
          of this Regulation.

               (a)  "Bead" means rubber-covered strands of wire, wound into
          a circular form, which ensure a seal between a tire and the rim
          of the wheel onto which the tire is mounted.

               (b)  "Bead Cementing Operation" means the system that is
          used to apply cement to the bead rubber or after it is wound into
          its circular form.  A bead cementing operation consists of a
          cement application station, such as a dip tank, spray booth and
          nozzles, cement trough and roller or swab applicator, and all
          other equipment necessary to apply cement to wound beads or bead
          rubber and to allow  evaporation of solvent from cemented beads.

               (c)  "Component" means a piece of tread, combined
          tread/sidewall, or separate sidewall rubber, or other rubber
          strip that is combined into the sidewall of a finished tire.

               (d)  "Drying Area" means the area where VOC from applied
          cement or green tire spray is allowed to evaporate.

               (e)  "Enclosure" means a structure that surrounds a VOC
          (cement, solvent, or spray) application area and drying area, and
          that captures and contains evaporated VOC and vents it to a
          control device.  Enclosures may have permanent and temporary
          openings.

               (f)  "Green Tire" means an assembled, uncured tire.

               (g)  "Green Tire Spraying Operation" means the system used
          to apply a mold release agent and lubricant to the inside and/or
          outside of green tires to facilitate the curing  process and to
          prevent rubber from sticking to the curing press.  A green tire
          spraying operation consists of a booth where spraying is
          performed, the spray application station, and related equipment,
          such as the lubricant supply system.

               (h)  "Michelin-A Operation" means the operation identified
          as Michelin-A in the Emission Standards and Engineering Division
          confidential files as referenced in Docket A-80-9.  Entry II-B-
          12.

               (i)  "Michelin-B Operation" means the operation identified
          as Michelin-B in the Emission Standards and Engineering Division
          confidential files as referenced in Docket A-80-9, Entry II-B-12.

               (j)  "Michelin-C-Automatic Operation" means the operation
          identified as Michelin-C-automatic in the Emission Standards and
          Engineering Division confidential files as referenced in Docket
          A-80-9, Entry II-B-12.

               (k)  "Month" means a calendar month or prespecified period
          of 28 days or 35
          days (utilizing a 4-4-5 week recordkeeping and reporting
          schedule).

               (l)  "Organic Solvent-Based Green Tire Spray" means any mold
          release agent and lubricant applied to the inside or outside of
          green tires that contains more than 12 percent, by weight, or VOC
          as sprayed.

               (m)  "Permanent Opening" means an opening designed into an
          enclosure to allow tire components to pass through the  enclosure
          by conveyor or other mechanical means, to provide access for
          permanent mechanical or electrical equipment, or to direct air
          flow into the enclosure.  A permanent opening is not equipped
          with a door or other means of obstruction of air flow.

               (n)  "Sidewall Cementing Operation" means the system used to
          apply cement to a continuous strip of sidewall component or any
          other continuous strip component (except combined tread/sidewall
          component) that is incorporated into the side-wall of a finished
          tire.  A sidewall cementing operation consists of a cement
          application station and all other equipment, such as the cement
          supply system and feed and takeaway conveyors, necessary to apply
          cement to sidewall strips or other continuous strip component
          (except combined tread/sidewall component) and to allow
          evaporation of solvent from the cemented rubber.

               (o)  "Temporary Opening " means an opening into an enclosure
          that is equipped with a means of obstruction, such as a door,
          window, or port that is normally closed.

               (p)  "Tire" means any agricultural, airplane, industrial,
          mobile home, light-duty truck and/or passenger vehicle tire that
          has a bead diameter less than or equal to 0.5 meter (m) (19.7
          inches) and cross section dimension less than or equal to 0.325 m
          (12.8 in.), and that is mass produced in an assembly-line
          fashion.

               (q)  "Tread End Cementing Operation" means the system used
          to apply cement to one or both ends of the tread or combined
          tread/sidewall component.  A tread end cementing operation
          consists of a cement application station and all other equipment,
          such as the cement supply system and feed and takeaway conveyors,
          necessary to apply cement to tread ends and to allow evaporation
          of solvent from the cement treads ends.

               (r)  "Undertread Cementing Operation" means the system used
          to apply cement to a continuous strip of tread or combined
          tread/sidewall component.  An undertread cementing operation
          consists of a cement application station and all other equipment,
          such as the cement supply system and feed and takeaway conveyors,
          necessary to apply cement to tread or combined tread/sidewall
          strips and to allow evaporation of solvent from the cemented
          tread or combined tread/sidewall.

               (s)  "VOC Emission Control Device" means equipment that
          destroys or recovers VOC.

               (t)  "VOC Emission Reduction System" means a system composed
          of an enclosure, hood, or other device for containment and
          capture of VOC emissions and VOC emission control device.

               (u)  "Volatile Organic Compounds (VOC)" means any compound
          of carbon, excluding methane, carbon monoxide, carbon dioxide,
          carbonic acid, ammonium carbonate, metallic carbides and
          carbonates, methylene chloride, 1,1,1-trichloroethane and
          trichlorofluoromethane, which may be emitted to the atmosphere
          during the application of and/or subsequent drying or curing of
          coatings subject to this rule.

               (v)  "Water-Based Green Tire Spray" means any mold release
          agent and lubricant applied to the inside or outside of green
          tires that contains 12 percent or less, by weight of VOC as
          sprayed.



               Notations used under this subpart are defined below:

          Bo   =    total number of beads cemented at a particular bead
                    cementing affected facility for a month.

          Ca   =    concentration of VOC in gas stream in vents after a
                    control device (parts per million by volume).
          Cb   =    concentration of VOC in gas stream in vents before a
                    control device (parts per million by volume).

          Cf   =    concentration of VOC in each gas stream vented directly
                    to the atmosphere from an affected facility or from a
                    temporary enclosure around an affected facility (parts
                    per million by volume).

          Dc   =    density of VOC recovered by an emission control device
                    (grams per liter).

          Dr   =    density of VOC recovered by emission control device
                    (grams per liter).

          E    =    emission control device efficiency, inlet versus outlet
                    (fraction).

          Fc   =    capture efficiency, VOC captured and routed to one
                    control device versus total VOC used for an affected
                    facility (fraction).

          Fo   =    fraction of total mass VOC used in a month by all
                    facilities served by a common cement or spray material
                    distribution system that is used by a particular
                    affected facility served by the common distribution
                    system.

          G    =    monthly average mass of VOC used per tire cemented or
                    sprayed with a water-based green tire spray for a
                    particular affected facility (grams per tire).

          Gb   =    monthly average mass of VOC used per bead cemented for
                    a particular bead cementing affected facility (grams
                    per bead).

          Lc   =    volume of cement or spray material used for a month
                    (liters).

          Lr   =    volume of VOC recovered by an emission control device
                    for a month (liters).

          M    =    total mass of VOC used for a month by all facilities
                    served by a common cement or spray material
                    distribution system (grams).

          Mo   =    total mass of VOC used at an affected facility for a
                    month (grams).

          Mr   =    mass of VOC recovered by an emission control device for
                    a month (grams).

          N    =    mass of VOC emitted to the atmosphere per tire cemented
                    or sprayed with a water-based green tire spray for an
                    affected facility for a month (grams per tire).

          Qa   =    volumetric flow rate in vents after a control device
                    (dry standard cubic meters per hour).

          Qb   =    volumetric flow rate in vents before a control device
                    (dry standard cubic meters per hour).
          Qf   =    volumetric flow rate of each stream vented directly to
                    the atmosphere from an affected facility or from a
                    temporary enclosure around an affected facility (dry
                    standard cubic meters per hour).

          R    =    overall efficiency of an emission reduction system
                    (fraction).

          Td   =    total number of days in monthly compliance period
                    (days).

          To   =    total number of tires cemented or sprayed with water-
                    based green tire spray at a particular affected
                    facility for a month.

          Wo   =    weight fraction of VOC in a cement or spray material.



               RULE 260.542.  STANDARDS FOR VOLATILE ORGANIC
                              COMPOUNDS.

               (a)  On and after the date on which the initial  performance
          test, required by Rule 260.8, is completed, but no later than 180
          days after initial startup, each owner or operator subject to the
          provisions of this subpart shall comply with the following
          conditions:

                    (1)  For each undertread cementing operation:

                         (i)  Discharge into the atmosphere no more than 25
                    percent of the VOC used (75 percent emission reduction)
                    for each month; or

                         (ii) Maintain total (uncontrolled) VOC use less
                    than or equal to the levels specified below, depending
                    upon the duration of the compliance period:

                              (A)  3,870 kilograms of VOC per 28 days,

                              (B)  4,010 kilograms of VOC per 29 days,

                              (C)  4,150 kilograms of VOC per 30 days,

                              (D)  4,280 kilograms of VOC per 31 days, or

                              (E)  4,840 kilograms of VOC per 35 days.

                    (2)  For each sidewall cementing operation:

                         (i)  Discharge into the atmosphere no more than 25
                    percent of the VOC use (75 percent emission reduction)
                    for each month; or

                         (ii) Maintain total (uncontrolled) VOC use less
                    than or equal to the levels specified below, depending
                    upon the duration of the compliance period:

                              (A)  3,220 kilograms of VOC per 28 days,

                              (B)  3,340 kilograms of VOC per 29 days,

                              (C)  3,450 kilograms of VOC per 30 days,

                              (D)  3,570 kilograms of VOC per 31 days, or

                              (E)  4,030 kilograms of VOC per 35 days.

                    (3)  For each tread end cementing operation:  Discharge
               into the atmosphere no more than 10 grams of VOC per tire
               (g/tire) cemented for each month.

                    (4)  For each bead cementing operation:  Discharge into
               the atmosphere no more than 5 grams of VOC per bead (g/bead)
               cemented for each month.

                    (5)  For each green tire spraying operation where only
               water-based sprays are used:

                         (i)  Discharge into the atmosphere no more than
                    1.2 grams of VOC per tire sprayed with an inside green
                    tire spray for each month; and

                         (ii) Discharge into the atmosphere no more than
                    9.3 grams of VOC per tire sprayed with an outside green
                    tire spray for each month.

                    (6)  For each green tire spraying operation where only
               organic solvent-based sprays are used:

                         (i)  Discharge into the atmosphere no more than 25
                    percent of the VOC used (75 percent emission reduction)
                    for each month; or

                         (ii) Maintain total (uncontrolled) VOC use less
                    than or equal to the levels specified below, depending
                    upon the duration of the compliance period:

                              (A)  3,220 kilograms of VOC per 28 days,

                              (B)  3,340 kilograms of VOC per 29 days,

                              (C)  3,450 kilograms of VOC per 30 days,

                              (D)  3,570 kilograms of VOC per 31 days, or

                              (E)  4,030 kilograms of VOC per 35 days.

                    (7)  For each green tire spraying operation where both
               water-based and organic solvent-based sprays are used:

                         (i)  Discharge into the atmosphere no more than
                    1.2 grams of VOC per tire sprayed with a water-based
                    inside green tire spray for each month; and

                         (ii) Discharge into the atmosphere no more than
                    9.3 grams of VOC per tire sprayed with a water-based
                    outside green tire spray for each month; and either

                         (iii)Discharge into the atmosphere no more than 25
                    percent of the VOC used in the organic solvent-based
                    green tire sprays (75 percent emission reduction) for
                    each month; or

                         (iv) Maintain total (uncontrolled) VOC use for all
                    organic solvent-based green tire sprays less than  or
                    equal to the levels specified under Subsection
                    (a)(6)(ii) of this rule.

                    (8)  For each Michelin-A operation:

                         (i)  Discharge into the atmosphere no more than 35
                    percent of the VOC used (65 percent emission reduction)
                    for each month; or

                         (ii) Maintain total (uncontrolled) VOC use less
                    than or equal to the levels specified below, depending
                    upon the duration of the compliance period.

                              (A)  1,570 kilograms of VOC per 28 days,

                              (B)  1,630 kilograms of VOC per 28 days,

                              (C)  1,690 kilograms of VOC per 28 days,

                              (D)  1,740 kilograms of VOC per 28 days, or

                              (E)  1,970 kilograms of VOC per 28 days,

                    (9)  For each Michelin-B operation:

                         (i)  Discharge into the atmosphere no more than 25
                    percent of the VOC used (75 percent emission reduction)
                    for each month; or

                         (ii) Maintain total (uncontrolled) VOC use less
                    than or equal to the levels specified below, depending
                    upon the duration of the compliance period:

                              (A)  1,310 kilograms of VOC per 28 days,

                              (B)  1,360 kilograms of VOC per 29 days,

                              (C)  1,400 kilograms of VOC per 30 days,

                              (D)  1,450 kilograms of VOC per 31 days, or

                              (E)  1,640 kilograms of VOC per 35 days.

                    (10) For each Michelin-C-automatic operation:

                         (i)  Discharge into the atmosphere no more than 35
                    percent of the VOC used (65 percent emission reduction)
                    for each month; or

                         (ii) Maintain total (uncontrolled) VOC use less
                    than or equal to the levels specified under Subsection
                    (a)(8)(ii) of this rule.



               RULE 260.543.  PERFORMANCE TEST AND COMPLIANCE
                              PROVISIONS.

               (a)  Rule 260.8(d) does not apply to the monthly performance
          test procedures required by this subpart.  Rule 260.8(d) does
          apply to initial performance tests and to the performance tests
          specified under Subsections (b)(2) and (b)(3) of this rule.  Rule
          260.8(f) does not apply when Method 24 is used.

               (b)  Performance tests shall be conducted as follows:

                    (1)  The owner or operator of an affected facility
               shall conduct an initial performance test, as required under
               Rule 260.8(a), except as described under Section (j) of this
               rule.  The owner or operator of an affected facility shall
               thereafter conduct a performance test each month except as
               described under Subsections (g)(1) and Section (j) of this
               rule.  Initial and monthly performance tests shall be
               conducted according to the procedures in this section.

                    (2)  The owner or operator of an affected facility who
               elects to use a VOC emission reduction system with a control
               device that destroys VOC (e.g., incinerator), as described
               under Sections (f) and (g) of this rule shall repeat the
               performance test when directed by the Control Officer or
               when the owner or operator elects to operate the capture
               system or control device at conditions different from the
               most recent determination of overall reduction efficiency.
               The performance test shall be conducted in accordance with
               the procedures described under Subsections (f)(2)(i) through
               (iii) of this rule.

                    (3)  The owner or operator of an affected facility who
               seeks to comply with the equipment design and performance
               specifications, as described under Section (j) of this rule,
               shall repeat the performance test when directed by the
               Control Officer or when the owner or operator elects to
               operate the capture system or control device at conditions
               different from the most recent determination of control
               device efficiency or measurement of capture system retention
               time or face velocity.  The performance test shall be
               conducted in accordance with the procedures described under
               Subsection (f)(2)(ii) or this rule.

               (c)  For each undertread cementing operation, each sidewall
          cementing operation, each green tire spraying operation where
          organic solvent-based sprays are used, each Michelin-A operation,
          each Michelin-B operation, and each Michelin-C-automatic
          operation where the owner or operator seeks to comply with the
          uncontrolled monthly VOC use (kg/mo) limits, the owner or
          operator shall use the following procedure to determine
          compliance with the applicable (depending upon duration of
          compliance period) uncontrolled monthly VOC limit specified under
          Rule 260.542(a)(1)(ii), (2)(ii), (6)(ii), (7)(iv), (8)(ii) and
          (10)(ii).  If both undertread cementing and sidewall cementing
          are performed at the same affected facility during a month, then
          the kg/mo limit specified under Rule 260.542(a)(1)(ii) shall
          apply for the month.

                    (1)  Determine the density and weight fraction VOC
               (including dilution VOC) of each cement or green tire spray
               from its formulation or by analysis of the cement or green
               tire spray using Method 24.  If a dispute arises, the
               Control Officer may require an owner or operator who used
               formulation data to analyze the cement or green tire spray
               using Method 24.

                    (2)  Calculate the total mass of VOC used at the
               affected facility for the month (Mo) by the following
               procedure:

                         (i)  For each affected facility for which cement
                    or green tire spray is delivered in batch or via a
                    distribution system that serves only the affected
                    facility:
                                         a
                                   Mo =      Lci Dci Woi
                                        i=1

               where "a" equals the number of different cements or green
          tire sprays used during the month that are delivered in batch or
          via a distribution system that serves only a single affected
          facility.
                         (ii) For each affected facility for which cement
                    or green tire spray is delivered via a common
                    distribution system that also serves other affected or
                    existing facilities:

                              (A)  Calculate the total mass of VOC used for
                         all of the facilities served by the common
                         distribution system for the month (M):

                                           b
                                   M   =      Lci Dci Woi
                                          i=1

               where:  "b" equals the number of different cements or green
          tire sprays used during the month that are delivered via a common
          distribution system that also serves other affected or existing
          facilities.

                              (B)  Determine the fraction (Fo) of M used at
                         the affected facility by comparing the production
                         records and process specifications for the
                         material cemented or sprayed at the affected
                         facility for the month to the production records
                         and process specifications for the material
                         cemented or sprayed at all other facilities served
                         by the common distribution system for the month or
                         by another procedure acceptable to the
                         Administrator.

                              (C)  Calculate the total monthly mass of VOC
                         used at the affected facility for the month (Mo).

                                   Mo = MFo

                    (3)  Determine the time duration of the monthly
               compliance period Td.

               (d)  For each tread end cementing operation and each green
          tire spraying operation where water-based sprays are used (inside
          and/or outside) that do not use a VOC emission reductions system,
          the owner or operator shall use the following procedure to
          determine compliance with the g/tire limit specified under Rule
          260.542(a)(3), (5)(i), (5ii), (7)(i), and (7)(ii).

                    (1)  Determine the density and weight fraction VOC as
               specified under Subsection (c)(1) of this rule.

                    (2)  Calculate the total mass of VOC used at the
               affected facility for the month (Mo) as specified under
               Subsection (c)(2) of this rule.

                    (3)  Determine the total number of tire cemented or
               sprayed at the affected facility for the month (To) by the
               following procedure:

                         (i)  For a tread end cementing operation, To
                    equals the number of
          tread or combined tread/sidewall components that receive an
          application of tread end cement for the month.

                         (ii) For a green tire spraying operation that uses
                    water-based inside green tire sprays, To equals the
                    number of green tires that receive an application of
                    water-based inside green tire spray for the month.

                         (iii)For a green tire spraying operation that uses
                    water-based outside green tire spray, To equals the
                    number of green tires that receive an application of
                    water-based outside green tire spray for the month.

                    (4)  Calculate the mass VOC used per tire cemented or
               sprayed at the affected facility for month (G):

                                          Mo
                              G    =     ----
                                          To

                    (5)  Calculate the mass of VOC emitted per tire
               cemented or sprayed at the affected facility for the month
               (N):

                              N = G

               (e)  For each bead cementing operation that does not use a
          VOC emission reduction system, the owner or operator shall use
          the following procedure to determine compliance with the g/bead
          limit specified under Rule 260.542(a)(4).

                    (1)  Determine the density and weight fraction VOC as
               specified under Subsection (c)(1) of this rule.

                    (2)  Calculate the total mass of VOC used at the
               affected facility for the month (Mo) as specified under
               Subsection (c)(2) of this rule.

                    (3)  Determine the number of beads cemented at the
               affected facility during the month (Bo) using production
               records; Bo equals the number of beads that receive an
               application of cement for the month.

                    (4)  Calculate the mass of VOC used per bead cemented
               at the affected facility for the month (Gb):

                                            Mo
                                   Gb =    -----
                                            Bo

                    (5)  Calculate the mass of VOC emitted per bead
               cemented at the affected facility for the month (Nb):

                                   Nb =  Gb

               (f)  For each tread end cementing operation and each bead
          cementing operation that use a VOC emission reduction system with
          a control device that destroys VOC (e.g., incinerator), the owner
          or operator shall use the following procedure to determine
          compliance with the emission limit specified under Rule
          260.542(a)(3) and (4).

                    (1)  Calculate the mass of VOC used per tire cemented
               at the affected facility for the month (G), as specified
               under Subsections (d)(1) through (4) of this rule, or mass
               of VOC used per bead cemented at the affected facility for
               the month (Gb), as specified under Subsections (e)(1)
               through (4) of this rule.

                    (2)  Calculate the mass of VOC emitted per tire
               cemented at the affected facility for the month (N) or mass
               of VOC emitted per bead cemented for the affected facility
               for the month (Nb):

                              N   =  G  (1-R)
                              Nb  =  Gb (1-R)

               For the initial performance test, the overall reduction
          efficiency (R) shall be determined as prescribed under
          Subsections (f)(2)(i) through (iii) of this rule .  In subsequent
          months, the owner or operator may use the most recently
          determined overall reduction efficiency (R) for the performance
          test except during conditions described under Subsection (b)(2)
          of this rule.

                         (i)  The owner or operator of an affected facility
                    shall construct a temporary enclosure around the
                    application and drying areas during the performance
                    test for the purpose of capturing fugitive VOC
                    emissions.  The enclosure must be maintained at a
                    negative pressure to ensure that all evaporated VOC are
                    measurable.  Determine the fraction (Fc) of total VOC
                    used at the affected facility that enters the control
                    device:

                               m
                                  Cbi Qbi
                              i=1
                    Fc  = --------------------------------------
                           m                 n
                               Cbi Qbi   +      Cfi Qfi
                          i=1               i=1

               where:  "m" is the number of vents from the affected
          facility to the control device, and "n" is the number of vents
          from the affected facility to the atmosphere and from the
          temporary enclosure.

                         (ii) Determine the destruction efficiency of the
                    control device (E) by using the values of the
                    volumetric flow rate of each of the gas streams and the
                    VOC content (as carbon) of each of the gas streams in
                    and out of the control device:

                                    m                  p
                                       Cbi Qbi  -         Cai Qai
                                   i=1                i=1
                           E   =   ---------------------------------
                                           m
                                              Cbi Qbi
                                          i=1


               where: "m" is the number of vents from the affected facility
          to the control device, and "p" is the number of vents after the
          control device.

                         (iii) Determine the overall reduction efficiency (R):

                                   R = EFc

               (g)  For each undertread cementing operation, each sidewall
          cementing operation, each green tire spraying operation where
          organic solvent-based sprays are used, each  Michelin-A
          operation, each Michelin-B operation, and each Michelin-C-
          automatic operation that use a VOC emission reduction system with
          a control device that destroys VOC (e.g., incinerator), the owner
          or operator shall use the following procedure to determine
          compliance with the percent emission reduction requirement
          specified under Rule 260.542 (a)(1)(i), (2)(i), (6)(i), (7)(iii),
          (8)(i), (9)(i), and (10)(i).

                    (1)  For the initial performance test, the overall
               reduction efficiency (R) shall be determined as prescribed
               under Subsections (f)(2)(i) through (iii) of this rule.  The
               performance test shall be repeated during conditions
               described under Subsection (b)(2) of this rule.  No monthly
               performance tests are required.

               (h)  For each tread end cementing operation and each bead
          cementing operation that uses a VOC emission reduction system
          with a control device that recovers VOC (e.g., carbon adsorber),
          the owner or operator shall use the following procedure to
          determine compliance with the emission limit specified under Rule
          260.542(a)(3) and (4).

                    (1)  Calculate the mass of VOC used per tire cemented
               at the affected facility for the month (G), as specified
               under Subsections (d)(1) through (4) of this rule, or mass
               of VOC used per bead cemented at the affected facility for
               the month (G), as specified under Subsections (e)(1) through
               (4) of this rule.

                    (2)  Calculate the total mass of VOC recovered from the
               affected facility for the month (Mr):

                                   Mr =  Lr Dr

                    (3)  Calculate the overall reduction efficiency for the
               VOC emission reduction system (R) for the month:

                                         Mr
                              R    =    -----
                                         Mo

                    (4)  Calculate the mass of VOC emitted per tire
               cemented at the affected facility for the month (N) or mass
               of VOC emitted per bead cemented at the affected facility
               for the month (Nb):

                                   N   =    G  (1-R)
                                   Nb  =    Gb (1-R)

                         (i)  For each undertread cementing operation, each
                    sidewall cementing operation, each green tire spraying
                    operation where organic solvent-based sprays are used,
                    each Michelin-A operation, each Michelin-B operation,
                    and each Michelin-C-automatic operation that use a VOC
                    emission reduction system with a  control device that
                    recovers (VOC) (e.g., carbon adsorber), the owner or
                    operator shall use the following procedure to determine
                    compliance with the percent reduction requirement
                    specified under Rule 260.542(a)(1)(i), (2)(i), (6)(i),
                    (7)(iii), (8)(i), (9)(i), and (10)(i).

                    (1)  Determine the density and weight fraction VOC as
               specified under Subsection (c)(1) of this rule.

                    (2)  Calculate the total mass of VOC used at the
               affected facility for the month (Mo) as described under
               Subsection (c)(2) of this rule.

                    (3)  Calculate the total mass of VOC recovered from the
               affected facility for the month (Mr) as described under
               Subsection (h)(2) of this rule.

                    (4)  Calculate the overall reduction efficiency of the
               VOC emission reduction system (R) for the month as described
               under Subsection (h)(3) of this rule.

               (j)  Rather than seeking to demonstrate compliance with the
          provisions of Rule 260.542(a)(1)(i), (2)(i), (6)(i), (7)(iii), or
          (9)(i) using the performance test procedures described under
          Sections (g) and (i) of this rule, an owner or operator of an
          undertread cementing operation, sidewall cementing operation,
          green tire spraying operation where organic solvent-based sprays
          are used, or Michelin-B operation that use a VOC emission
          reduction system may seek to demonstrate compliance by meeting
          the equipment design and performance specifications listed under
          Subsections (j)(1), (2), and (4) through (6) or under Subsections
          (j)(1) and (3) through (6) of this rule, and by conducting a
          control device efficiency performance test to determine
          compliance as described under Subsection (j)(7) of this rule.
          The owner or operator shall conduct this performance test of the
          control device efficiency no later than 180 days after initial
          startup of the affected facility, as specified under Rule
          260.8(a).  Meeting the capture system design and performance
          specifications, in conjunction with operating a 95 percent effi-
          cient control device, is an acceptable means of demonstrating
          compliance with the standard.  Therefore, the requirement for the
          initial performance test on the enclosure, as specified under
          Rule 260.8(a), is waived.  No monthly performance tests are
          required.

                    (1)  For each undertread cementing operation, each
               sidewall cementing operation, and each Michelin-B operation,
               the cement application and drying area shall be contained in
               an enclosure that meets the criteria specified under
               Subsections (j)(2), (4), and (5) of this  rule; for each
               green tire spraying operation where organic solvent-based
               sprays are used, the spray application and drying area shall
               be contained in an enclosure that meets the criteria
               specified under Subsections (j)(3), (4), and (5) of this
               rule.

                    (2)  The drying area shall be enclosed between the
               application area and the water bath or to the extent
               necessary to contain all tire components for at least 30
               seconds after cement application, whichever distance is
               less.

                    (3)  Sprayed green tires shall remain in the enclosure
               for a minimum of 30 seconds after spray application.

                    (4)  A minimum face velocity of 100 feet per minute
               shall be maintained continuously through each permanent
               opening into the enclosure when all temporary enclosure
               opening are closed.  The cross-sectional area of each
               permanent opening shall be divided into at least 12 equal
               areas, and a velocity measurement shall be performed at the
               centroid of each equal area with an anemometer or similar
               velocity monitoring device; the face measurements taken.
               The monitoring device shall be calibrated and operated
               according to the manufacturer's instructions.  Temporary
               enclosure openings shall remain closed at all times except
               when worker access is necessary.

                    (5)  The total area of all permanent openings into the
               enclosure shall not exceed the area that would be necessary
               to maintain the VOC concentration of the exhaust gas stream
               at 25 percent of the lower explosive limit (LEL) under the
               following conditions:

                         (i)  The facility is operating at the maximum
                    solvent use rate;

                         (ii) The face velocity through each permanent
                    opening is 100 feet per minute; and

                         (iii)All temporary openings are closed.

                    (6)  All captured VOC are ducted to a VOC emission
               control device that is operated on a continuous basis and
               that achieves at least a 95 percent destruction or recovery
               efficiency.

                    (7)  The efficiency of the control device (E) for the
               initial performance test is determined by using values of
               the volumetric flow rate of each of the gas streams and the
               VOC content (as carbon) of each of the gas streams in and
               out of the control device as described under Subsection
               (f)(2)(ii) of this rule.  The  control device efficiency
               shall be redetermined during conditions specified under
               Subsection (b)(3) of this rule.

               (k)  Each owner or operator of an affected facility who
          initially elected to be subject to the applicable percent
          emission reduction requirement specified under Rule 260.542
          (a)(1)(i), (2)(i), (6)(i), (7)(iii), (8)(i), (9)(i), or (10)(i)
          and who later seeks to comply with the applicable total
          (uncontrolled) monthly VOC use limit specified under Rule 260.542
          (a)(1)(ii), (2)(ii), (6)(ii), (7)(iv), (8)(ii), (9)(ii), or
          (10)(ii) shall demonstrate, using the procedure described under
          Section (c) of this rule, that the total VOC use at the affected
          facility has not exceeded the applicable total (uncontrolled)
          monthly VOC use limit during each of the last 6 months of
          operation.  The owner or operator shall be subject to the
          applicable percent emission reduction requirement until the
          conditions of this section and Rule 260.546(h) are satisfied.

               (l)  In determining compliance for each undertread cementing
          operation, each sidewall cementing operation, each green tire
          spraying operation, each Michelin-A operation, each Michelin-B
          operation, and each Michelin-C-automatic operation, the owner or
          operator shall include all the VOC used, recovered, or destroyed
          from cements and organic solvent-based green tire spraying
          including those cements, or sprays used for tires other than
          those defined under Rule 260.541(a).

               (m)  In determining compliance for each tread end cementing
          operation, each bead cementing operation, and each green tire
          spraying operation, the owner or operator shall include only
          those tires defined under Rule 260.541(a) when determining To and
          Bo.


               RULE 260.544.  MONITORING OF OPERATIONS

               (a)  Each owner or operator subject to the provisions of
          this subpart shall install, calibrate, maintain, and operate
          according to manufacturer's specifications the following
          equipment, unless alternative monitoring procedures or
          requirements are approved for the facility by the Administrator:

                    (1)  Where a thermal incinerator is used for VOC
               emission reduction, the owner or operator shall install a
               temperature monitoring device equipped with a continuous
               recorder for measuring the temperature of the gas stream in
               the combustion zone of the incinerator.  The temperature
               monitoring device shall have an accuracy of 1 percent of the
               temperature being measured in C or 0.5C, whichever is
               greater.

                    (2)  Where a catalytic incinerator is used for VOC
               emission reduction, temperature and pressure monitoring
               devices, each equipped with a continuous recorder, shall be
               installed for measuring the temperature and pressure in the
               gas stream immediately before and after the catalyst bed of
               the incinerator.  The temperature monitoring devices shall
               have an accuracy of 1 percent of the temperature being
               measured in C or 0.5C whichever is greater.  The pressure
               monitoring system shall have chart recordings where the
               design pressure is at midscale and the accuracy of
               measurement is +0.1 inches of water.

                    (3)  For an undertread cementing operation, sidewall
               cementing operation, green tire spraying operation where
               organic solvent-based sprays are used, or Michelin-B
               operation where a carbon adsorber is used to meet the
               performance requirements specified under Rule 260.543(j)(6),
               an organics monitoring device shall be used to indicate the
               concentration level of organic compounds based on a
               detection principle such as infrared, photoionization, or
               thermal conductivity, equipped with a continuous recorder,
               for the outlet of the carbon bed.

               (b)  An owner or operator of an undertread cementing
          operation, sidewall cementing operation, green tire spraying
          operation where organic solvent-based sprays are used, or
          Michelin-B operation where a VOC recovery device other than a
          carbon adsorber is used to meet the performance requirements
          specified under Rule 260.543(j)(6), shall provide the Control
          Officer information describing the operation of the control
          device and the process parameter(s) which would indicate proper
          operation and maintenance of the device.  The Control Officer may
          request further information and will specify appropriate
          monitoring procedures or requirements.


               RULE 260.545.  RECORDKEEPING REQUIREMENTS.

               (a)  Each owner or operator of an affected facility that
          uses a thermal incinerator shall maintain continuous records of
          the temperature of the gas stream in the combustion zone of the
          incinerator and records of all 3-hour periods of operation for
          which the average temperature of the gas stream in the combustion
          zone was more than 28C (50F) below the combustion zone
          temperature measured during the most recent determination of the
          destruction efficiency of the thermal incinerator that
          demonstrated that the affected facility was in compliance.

               (b)  Each owner or operator of an affected facility that
          uses a catalytic incinerator shall maintain continuous records of
          the temperature and pressure of the gas stream both upstream and
          downstream of the catalyst bed of the incinerator, records of all
          3-hour periods of operation for which the average temperature
          measured before the catalyst bed is more than 28C below the gas
          stream temperature measured before the catalyst bed during the
          most recent determination of destruction efficiency of the
          catalytic incinerator that demonstrated that the affected
          facility was in compliance, and records of all 3-hour periods for
          which the average temperature difference across the catalyst bed
          is less than 80 percent of the temperature difference measured
          during the most recent determination of the destruction
          efficiency of the catalytic incinerator that demonstrated that
          the affected facility was in compliance.

               (c)  Each owner or operator of an undertread cementing
          operation, sidewall cementing operation, green tire spraying
          operation where organic solvent-based sprays are used, or
          Michelin-B operation that uses a carbon adsorber to meet the
          requirements specified under Rule 260.543 (j)(6) shall maintain
          continuous records of all 3-hour periods of operation during
          which the average VOC concentration level or reading of organics
          in the exhaust gases is more than 20 percent greater than the
          exhaust gas concentration level or reading measured by the
          organics monitoring device during the most recent determination
          of the recovery efficiency of the carbon adsorber that
          demonstrated that the affected facility was in compliance.

               (d)  Each owner or operator of an undertread cementing
          operation, sidewall cementing operation, green tire spraying
          operation where organic solvent-based sprays are used, Michelin-A
          operation, Michelin-B operation, Michelin-C-automatic operation
          who seeks to comply with a specified kg/mo uncontrolled VOC use
          limit shall maintain records of monthly VOC use and the number of
          days in each compliance period.

               (e)  Each owner or operator that is required to conduct
          monthly performance tests, as specified under Rule 260.543(b)(1),
          shall maintain records of the results of all monthly tests.


               RULE 260.546.  REPORTING REQUIREMENTS.

               (a)  Each owner or operator subject to the provisions of
          this subpart, at the time of notification of the anticipated
          initial startup of an affected facility pursuant to Rule 260.7
          (a)(2), shall provide a written report to the Control Officer
          declaring for each undertread cementing operation, each sidewall
          cementing operation, each green tires spraying operation where
          organic solvent-based sprays  are used, each Michelin-A
          operation, each Michelin-B operation, and each Michelin-C-
          automatic operation the emission limit he intends to comply with
          and the compliance method (where Rule 260.543(j) is applicable)
          to be employed.

               (b)  Each owner or operator subject to the provisions of
          this subpart, at the time of notification of the anticipated
          initial startup of an affected facility pursuant to Rule 260.7
          (a)(2), shall specify the monthly schedule (each calendar month
          or a 4-4-5 week schedule) to be used in making compliance
          determinations.

               (c)  Each owner or operator subject to the provisions of
          this subpart shall report the results of all initial performance
          tests, as required under Rule 260.8(a), and the results of the
          performance test required under Rule 260.543(b)(2) and (b)(3).
          The following data shall be included in the report of each of the
          above performance tests:

                    (1)  For each affected facility for which the owner or
               operator seeks to comply with a kg/mo uncontrolled VOC use
               limit specified under Rule 260.542(a):  The monthly mass of
               VOC used (Mo) and the number of days in the compliance
               period (Td).

                    (2)  For each affected facility that seeks to comply
               with a g/tire of g/bead limit specified under Rule
               260.542(a) without use of a VOC emission reduction system:
               The mass of VOC used (Mo), the number of tires cemented or
               sprayed (To), the mass VOC emitted per tire cemented or
               sprayed (N), the number or beads cemented (Bo), and the mass
               of VOC emitted per bead cemented (Nb).

                    (3)  For each affected facility that uses a VOC
               emission reduction system with a control device that
               destroys VOC (e.g., incinerator) to comply with a g/tire or
               g/bead limit specified under Rule 260.542(a):  The mass of
               VOC used (Mo), the number or tires cemented or sprayed (To),
               the mass of VOC emitted per tire cemented or sprayed (N),
               the number of beads cemented (Bo), the mass of VOC emitted
               per bead cemented (Nb), the mass of VOC used per tire
               cemented or sprayed (G), the mass of VOC per bead cemented
               (Gb), the emission control device efficiency (E), the
               capture system efficiency (Fc), the face velocity through
               each permanent opening for the capture system with the
               temporary openings closed, and the overall system emission
               reduction (R).

                    (4)  For each affected facility that uses a VOC
               emission reduction system with a control device that
               destroys a VOC (e.g., incinerator) to comply with a percent
               emission reduction requirement specified under Rule
               260.542(a):  The emission control device efficiency (E), the
               capture system efficiency (Fc), the face velocity through
               each permanent opening in the capture system with the
               temporary openings closed and the overall system emission
               reduction (R).

                    (5)  For each affected facility that uses a carbon
               adsorber to comply with a g/tire or g/bead limit specified
               under Rule 260.542(a):  The mass of VOC used (Mo), the
               number of tires cemented or sprayed (To), the mass of VOC
               used per tire cemented or sprayed (G), the number of beads
               cemented (Bo), the mass of VOC used per bead (Gb), the mass
               of VOC recovered (Mr), the overall system emission reduction
               (R), the mass VOC emitted per tire cemented or sprayed (N),
               and the mass of VOC emitted per bead cemented (Nb).

                    (6)  For each affected facility that uses a VOC
               emission reduction system with a control device that
               recovers VOC (e.g., carbon adsorber) to comply with a
               percent emission reduction requirement specified under Rule
               260.542(a):  The mass of VOC used (Mo), the mass of VOC
               recovered (Mr), and the overall system emission reduction
               (R).

               (d)  Each owner or operator of an undertread cementing
          operation, sidewall cementing operation, green tire spraying
          operation where organic solvent-based sprays are used, or
          Michelin-B operation who seeks to comply with the requirements
          described under Rule 260.543(j) shall include in the initial
          compliance report a statement specifying, in detail, how each of
          the equipment design and performance specifications has been met.
          The initial compliance report also shall include the following
          data:  The emission control device efficiency (E), the face
          velocity through each permanent enclosure opening with all
          temporary enclosure openings closed, the total area of all
          permanent enclosure openings, the total area of all temporary
          enclosure openings, the maximum solvent use rate (kg/hr), the
          type(s) of VOC used, the lower explosive limit (LEL) for each VOC
          used, and the length of time each component is enclosed after
          application of cement or spray material.

               (e)  Each owner or operator of an affected facility shall
          include the following data measured by the required monitoring
          device(s), as applicable, in the report for each performance test
          specified under Section (c) of this rule.

                    (1)  The average combustion temperature measured at
               least every 15 minutes and averaged over the performance
               test period of incinerator destruction efficiency for each
               thermal incinerator.

                    (2)  The average temperature before and after the
               catalyst bed measured at least every 15 minutes and
               averaged over the performance test period of incinerator
               destruction efficiency for each catalytic incinerator.

                    (3)  The concentration level or reading indicated by
               the organics monitoring device at the outlet of the
               adsorber, measured at least every 15 minutes and averaged
               over the performance test period of carbon adsorber recovery
               efficiency while the vent stream is normally routed and
               constituted.

                    (4)  The appropriate data to be specified by the
               Control Officer where a VOC recovery device other than a
               carbon adsorber is used.

               (f)  Once every 6 months each owner or operator subject to
          the provisions of Rule 260.545 shall report, as applicable:

                    (1)  Each monthly average VOC emission rate that
               exceeds the g/tire or g/bead limit specified under Rule
               260.542(a), as applicable for the affected facility.

                    (2)  Each monthly average VOC use rate that exceeds the
               kg/mo VOC use limit specified under Rule 260.542 (a), as
               applicable for the affected facility.

                    (3)  Each monthly average VOC emission reduction
               efficiency for a VOC recovery device (e.g., carbon adsorber)
               less than the percent efficiency limit specified under Rule
               260.542(a), as applicable for the affected facility.

                    (4)  Each 3-hour period of operation for which the
               average temperature of the gas stream in the combustion zone
               of a thermal incinerator, as measured by the temperature
               monitoring device, is more than 28C (50F) below the
               combustion zone temperature measured during the most recent
               determination of the destruction efficiency of the thermal
               incinerator that demonstrated that the affected facility was
               in compliance.

                    (5)  Each 3-hour period of operation for which the
               average temperature of the gas stream immediately before the
               catalyst bed of a catalytic incinerator, as measured by the
               temperature monitoring device, is more than 28C (50F)
               below the gas stream temperature measured before the
               catalyst bed during the most recent determination of the
               destruction efficiency of the catalyst incinerator that
               demonstrated that the affected facility was in compliance,
               and any 3-hour period for which the average temperature
               difference across the catalyst bed (i.e., the difference
               between the temperatures of the gas stream immediately
               before and after the catalyst bed), as measured by the
               temperature monitoring device, is less than 80 percent of
               the temperature difference measured during the most recent
               determination of the  destruction efficiency of the
               catalytic incinerator that demonstrated that the affected
               facility was in compliance.

                    (6)  Each 3-hour period of operation during which the
               average concentration level or reading of VOC's in the
               exhaust gases from a carbon adsorber is more than 20 percent
               greater than the exhaust gas concentration level or reading
               measured by the organics monitoring device durin g the most
               recent determination of the recovery efficiency of the
               carbon adsorber that demonstrated that the affected facility
               was in compliance.

               (g)  Each owner or operator of an affected facility who
          initially elected to be subject to the applicable percent
          emission reduction requirement specified under Rule 260.542(a)
          and who later seeks to comply with the applicable total
          (uncontrolled) monthly VOC use limit specified under Rule
          260.542(a) and who has satisfied the provisions specified under
          Rule 260.543(k) shall furnish the Control Officer written
          notification no less than 30 days in advance of the date when he
          intends to be subject to the applicable VOC use limit instead of
          the applicable percent emission reduction requirement.


               RULE 260.547.  TEST METHODS AND PROCEDURES.

               (a)  The test methods in Appendix A to this Regulation,
          except as provided under Rule 260.8(b), shall be used to
          determine compliance with Rule 260.542(a) as follows:

                    (1)  Method 24 or formulation data for the
               determination of the VOC content of cements or green tire
               spray materials.  In the event of dispute, Method 24 shall
               be the reference method.  For Method 24, the cement or green
               tire spray sample shall be a 1-liter sample collected in a
               1-liter container at a point where the sample will be
               representative of the material as applied in the affected
               facility.

                    (2)  Method 25 as the reference method for the
               determination of the VOC concentrations in each stack, both
               entering and leaving an emission control device.  The owner
               or operator shall notify the Control Officer 30 days in
               advance of any test by Method 25.  For Method 25, the
               sampling time for each of three runs shall be at least 1-
               hour.  Method 1 shall be used to select the sampling site,
               and the sampling point shall be the centroid of the duct or
               at a point no closer to the walls than 1 meter.  The minimum
               sample volume shall be 0.003 dry standard cubic meter (dscm)
               except the shorter sampling times or smaller volumes, when
               necessitated by process variables or other factors may be
               approved by  the Control Officer.

                    (3)  Method 2, 2A, 2C, or 2D, as appropriate, as the
               reference method for determination of the flow rate of the
               stack gas.  The measurement site shall be the same as for
               Method 25 sampling.  A velocity traverse shall be made once
               per run within the hour that the Method 25 sample is taken.

                    (4)  Method 4 for determination of stack gas moisture.

               NOTE:     DELEGATION OF AUTHORITY.

               (a)  In delegating implementation and enforcement authority
          to a State under Section 111(c) of the Act, the authorities
          contained in Paragraph (b) of this Section shall be retained by
          the Administrator and not transferred to a State.

               (b)  Authority which will not be delegated to States:
          Section 60.543(c)(2)(ii)(B).