within the values established
                                     during the compliance
                                     demonstration.
------------------------------------------------------------------------

0
13. Table 3 to Subpart UUUU is revised to read as follows:

Table 3 to Subpart UUUU of Part 63--Initial Compliance With Emission
Limits and Work Practice Standards

    As required in Sec. Sec.  63.5530(a) and 63.5535(g) and (h), you
must demonstrate initial compliance with the appropriate emission
limits and work practice standards according to the requirements in the
following table:

----------------------------------------------------------------------------------------------------------------
                                                                   for the following      you have demonstrated
              For . . .                        at . . .          emission limit or work  initial compliance if .
                                                                practice standard . . .            . .
----------------------------------------------------------------------------------------------------------------
1. the sum of all viscose process      a. each existing         i. reduce total          (1) reduce total
 vents.                                 cellulose food casing    uncontrolled sulfide     uncontrolled sulfide
                                        operation.               emissions (reported as   emissions (reported as
                                                                 carbon disulfide) by     carbon disulfide) by
                                                                 at least 25% based on    at least 25% based on
                                                                 a 6-month rolling        a 6-month rolling
                                                                 average;                 average;
                                                                ii. for each vent        (2) for each vent
                                                                 stream that you          stream that you
                                                                 control using a          control using a
                                                                 control device, route    control device, route
                                                                 the vent stream          the vent stream
                                                                 through a closed-vent    through a closed-vent
                                                                 system to the control    system to the control
                                                                 device; and.             device; and
                                                                iii. comply with the     (3) comply with the
                                                                 work practice standard   work practice standard
                                                                 for closed-vent          for closed-vent
                                                                 systems.                 systems.

                                       b. each new cellulose    i. reduce total          (1) the average
                                        food casing operation.   uncontrolled sulfide     uncontrolled total
                                                                 emissions (reported as   sulfide emissions,
                                                                 carbon disulfide) by     determined during the
                                                                 at least 75% based on    month-long compliance
                                                                 a 6-month rolling        demonstration or using
                                                                 average;                 engineering
                                                                ii. for each vent         assessments, are
                                                                 stream that you          reduced by at least
                                                                 control using a          75%;
                                                                 control device, route   (2) you have a record
                                                                 the vent stream          of the range of
                                                                 through a closed-vent    operating parameter
                                                                 system to the control    values over the month-
                                                                 device; and.             long compliance
                                                                iii. comply with the      demonstration during
                                                                 work practice standard   which the average
                                                                 for closed-vent          uncontrolled total
                                                                 systems.                 sulfide emissions were
                                                                                reduced by at least
                                                                                75%;
                                                                                (3) you prepare a
                                                                                material balance that
                                                                                includes the pertinent
                                                                                data used to determine
                                                                                the percent reduction
                                                                                of total sulfide
                                                                                emissions; and
                                                                                (4) you comply with the
                                                                                initial compliance
                                                                                requirements for
                                                                                closed-vent systems.
                                       c. each existing rayon   i. reduce total          (1) the average
                                        operation.               uncontrolled sulfide     uncontrolled total
                                                                 emissions (reported as   sulfide emissions,
                                                                 carbon disulfide) by     determined during the
                                                                 at least 35% within 3    month-long compliance
                                                                 years after the          demonstration or using
                                                                 effective date based     engineering
                                                                 on a 6-month rolling     assessments, are
                                                                 average; for each vent   reduced by at least
                                                                 stream that you          35% within 3 years
                                                                 control using a          after the effective
                                                                 control device, route    date;
                                                                 the vent stream         (2) you have a record
                                                                 through a closed-vent    of the average
                                                                 system to the control    operating parameter
                                                                 device; and comply       values over the month-
                                                                 with the work practice   long compliance
                                                                 standard for closed-     demonstration during
                                                                 vent systems; and        which the average
                                                                                uncontrolled total
                                                                                sulfide emissions were
                                                                                reduced by at least
                                                                                35%;
                                                                                (3) you prepare a
                                                                                material balance that
                                                                                includes the pertinent
                                                                                data used to determine
                                                                                the percent reduction
                                                                                of total sulfide
                                                                                emissions; and
                                                                                (4) you comply with the
                                                                                initial compliance
                                                                                requirements for
                                                                                closed-vent systems;
                                                                                and
                                                                ii. reduce total         (1) the average
                                                                 uncontrolled sulfide     uncontrolled total
                                                                 emissions (reported as   sulfide emissions,
                                                                 carbon disulfide) by     determined during the
                                                                 at least 40% within 8    month-long compliance
                                                                 years after the          demonstration or using
                                                                 effective date based     engineering
                                                                 on a 6-month rolling     assessments, are
                                                                 average; for each vent   reduced by at least
                                                                 stream that you          40% within 8 years
                                                                 control using a          after the effective
                                                                 control device, route    date;
                                                                 the vent stream         (2) you have a record
                                                                 through a closed-vent    of the average
                                                                 system to the control    operating parameter
                                                                 device; and comply       values over the month-
                                                                 with the work practice   long compliance
                                                                 standard for closed-     demonstration during
                                                                 vent systems.            which the average
                                                                                uncontrolled total
                                                                                sulfide emissions were
                                                                                reduced by at least
                                                                                40%;
                                                                                (3) you prepare a
                                                                                material balance that
                                                                                includes the pertinent
                                                                                data used to determine
                                                                                the percent reduction
                                                                                of the total sulfide
                                                                                emissions; and
                                                                                (4) you comply with the
                                                                                initial compliance
                                                                                requirements for
                                                                                closed-vent systems.

                                       d. each new rayon        i. reduce total          (1) the average
                                        operation.               uncontrolled sulfide     uncontrolled total
                                                                 emissions (reported as   sulfide emissions,
                                                                 carbon disulfide) by     determined during the
                                                                 at least 75%; based on   month-long compliance
                                                                 a 6-month rolling        demonstration or using
                                                                 average;                 engineering
                                                                ii. for each vent         assessments, are
                                                                 stream that you          reduced by at least
                                                                 control using a          75%;
                                                                 control device, route   (2) you have a record
                                                                 the vent stream          of the average
                                                                 through a closed-vent    operating parameter
                                                                 system to the control    values over the month-
                                                                 device; and.             long compliance
                                                                iii. comply with the      demonstration during
                                                                 work practice standard   which the average
                                                                 for closed-vent          uncontrolled total
                                                                 systems.                 sulfide emissions were
                                                                                reduced by at least
                                                                                75%;
                                                                                (3) you prepare a
                                                                                material balance that
                                                                                includes the pertinent
                                                                                data used to determine
                                                                                the percent reduction
                                                                                of total sulfide
                                                                                missions; and
                                                                                (4) you comply with the
                                                                                initial compliance
                                                                                requirements for
                                                                                closed-vent systems.
                                       e. each existing or new  i. reduce total          (1) the average
                                        cellulosic sponge        uncontrolled sulfide     uncontrolled total
                                        operation.               emissions (reported as   sulfide emissions,
                                                                 carbon disulfide) by     determined during the
                                                                 at least 75% based on    month-long compliance
                                                                 a 6-month rolling        demonstration or using
                                                                 average;                 engineering
                                                                ii. for each vent         assessments, are
                                                                 stream that you          reduced by at least
                                                                 control using a          75%;
                                                                 control device, route   (2) you have a record
                                                                 the vent stream          of the average
                                                                 through a closed-vent    operating parameter
                                                                 system to the control    values over the month-
                                                                 device; and.             long compliance
                                                                iii. comply with the      demonstration during
                                                                 work practice standard   which the average
                                                                 for closed-vent          uncontrolled total
                                                                 systems.                 sulfide emissions were
                                                                                reduced by at least
                                                                                75%;
                                                                                (3) you prepare a
                                                                                material balance that
                                                                                includes the pertinent
                                                                                data used to determine
                                                                                and the percent
                                                                                reduction of total
                                                                                sulfide emissions; and
                                                                                (4) you comply with the
                                                                                initial compliance
                                                                                requirements for
                                                                                closed-vent systems.
                                       f. each existing or new  i. reduce total          (1) the average
                                        cellophane operation.    uncontrolled sulfide     uncontrolled total
                                                                 emissions (reported as   sulfide emissions,
                                                                 carbon disulfide) by     determined during the
                                                                 at least 75% based on    month-long compliance
                                                                 a 6-month rolling        demonstration or using
                                                                 average;                 engineering
                                                                ii. for each vent         assessments, are
                                                                 stream that you          reduced by at least
                                                                 control using a          75%;
                                                                 control device (except  (2) you have a record
                                                                 for retractable hoods    of the average
                                                                 over sulfuric acid       operating parameter
                                                                 baths at a cellophane    values over the month-
                                                                 operation), route the    long compliance
                                                                 vent stream through a    demonstration during
                                                                 closed-vent system to    which the average
                                                                 the control device;      uncontrolled total
                                                                 and.                     sulfide emissions were
                                                                iii. comply with the      reduced by at least
                                                                 work practice standard   75%;
                                                                 for closed-vent         (3) you prepare a
                                                                 systems.                 material balance that
                                                                                includes the pertinent
                                                                                data used to determine
                                                                                the percent reduction
                                                                                of total sulfide
                                                                                emissions; and
                                                                                (4) you comply with the
                                                                                initial compliance
                                                                                requirements for
                                                                                closed-vent systems.

2. the sum of all solvent coating      a. each existing or new  i. reduce uncontrolled   (1) the average
 process vents.                         cellophane operation.    toluene emissions by     uncontrolled toluene
                                                                 at least 95% based on    emissions, determined
                                                                 a 6-month rolling        during the month-long
                                                                 average;                 compliance
                                                                ii. for each vent         demonstration or using
                                                                 stream that you          engineering
                                                                 control using a          assessments, are
                                                                 control device, route    reduced by at least
                                                                 the vent stream          95%;
                                                                 through a closed-vent   (2) you have a record
                                                                 system to the control    of the average
                                                                 device; and.             operating parameter
                                                                iii. comply with the      values over the month-
                                                                 work practice standard   long compliance
                                                                 for closed-vent          demonstration during
                                                                 systems.                 which the average
                                                                                uncontrolled toluene
                                                                                emissions were reduced
                                                                                by at least 95%;
                                                                                (3) you prepare a
                                                                                material balance that
                                                                                includes the pertinent
                                                                                data used to determine
                                                                                the percent reduction
                                                                                of toluene emissions;
                                                                                and
                                                                                (4) you comply with the
                                                                                initial compliance
                                                                                requirements for
                                                                                closed-vent systems.
3. the sum of all cellulose ether      a. each existing or new  i. reduce total          (1) average
 process vents.                         cellulose ether          uncontrolled organic     uncontrolled total
                                        operation using a        HAP emissions by at      organic HAP emissions,
                                        performance test to      least 99%; ii. for       measured during the
                                        demonstrate initial      each vent stream that    performance test or
                                        compliance; or.          you control using a      determined using
                                                                 control device, route    engineering estimates
                                                                 the vent stream          are reduced by at
                                                                 through a closed-vent    least 99%;
                                                                 system to the control   (2) you have a record
                                                                 device; and iii.         of the average
                                                                 comply with the work     operating parameter
                                                                 practice standard for    values over the
                                                                 closed-vent systems;     performance test
                                                                 or                       during which the
                                                                                average uncontrolled
                                                                                total organic HAP
                                                                                emissions were reduced
                                                                                by at least 99%; and
                                                                                (3) you comply with the
                                                                                initial compliance
                                                                                requirements for
                                                                                closed-vent systems;
                                                                                or
                                       b. each existing or new  i. reduce total          (1) average
                                        cellulose ether          uncontrolled organic     uncontrolled total
                                        operation using a        HAP emissions by at      organic HAP emissions,
                                        material balance         least 99% based on a 6-  determined during the
                                        compliance               month rolling average;   month-long compliance
                                        demonstration to        ii. for each vent         demonstration or using
                                        demonstrate initial      stream that you          engineering estimates
                                        compliance.              control using a          are reduced by at
                                                                 control device, route    least 99%;
                                                                 the vent stream         (2) you have a record
                                                                 through a closed-vent    of the average
                                                                 system to the control    operation parameter
                                                                 device; and iii.         values over the month-
                                                                 comply with the work     long compliance
                                                                 practice standard for    demonstration during
                                                                 closed-vent systems;     which the average
                                                                 or.                      uncontrolled total
                                                                                organic HAP emissions
                                                                                were reduced by at
                                                                                least 99%;
                                                                                (3) you prepare a
                                                                                material balance that
                                                                                includes the pertinent
                                                                                data used to determine
                                                                                the percent reduction
                                                                                of total organic HAP
                                                                                emissions;
                                                                                (4) if you use extended
                                                                                cookout to comply, you
                                                                                measure the HAP
                                                                                charged to the
                                                                                reactor, record the
                                                                                grade of product
                                                                                produced, and then
                                                                                calculate reactor
                                                                                emissions prior to
                                                                                extended cookout by
                                                                                taking a percentage of
                                                                                the total HAP charged.
4. closed-loop systems...............  each existing or new     operate and maintain     you have a record
                                        cellulose ether          the closed-loop system   certifying that a
                                        operation.               for cellulose ether      closed-loop system is
                                                                 operations.              in use for cellulose
                                                                                ether operations.

5. each carbon disulfide unloading     a. each existing or new  i. reduce uncontrolled   (1) you have a record
 and storage operation.                 viscose process          carbon disulfide         documenting the 83%
                                        affected source.         emissions by at least    reduction in
                                                                 83% from unloading and   uncontrolled carbon
                                                                 storage operations       disulfide emissions;
                                                                 based on a 6-month       and
                                                                 rolling average if you  (2) if venting to a
                                                                 use an alternative       control device to
                                                                 control technique not    reduce emissions, you
                                                                 listed in this table     comply with the
                                                                 for carbon disulfide     initial compliance
                                                                 unloading and storage    requirements for
                                                                 operations; if using a   closed-vent systems;
                                                                 control device to
                                                                 reduce emissions,
                                                                 route emissions
                                                                 through a closed-vent
                                                                 system to the control
                                                                 device; and comply
                                                                 with the work practice
                                                                 standard for closed-
                                                                 vent systems;
                                                                ii. reduce uncontrolled  (1) you comply with the
                                                                 carbon disulfide by at   initial compliance
                                                                 least 0.14% from         requirements for
                                                                 viscose process vents    viscose process vents
                                                                 based on a 6-month       at existing or new
                                                                 rolling average; for     cellulose food casing,
                                                                 each vent stream that    rayon, cellulosic
                                                                 you control using a      sponge, or cellophane
                                                                 control device, route    operations, as
                                                                 the vent stream          applicable;
                                                                 through a closed-vent   (2) the 0.14% reduction
                                                                 system to the control    must be in addition to
                                                                 device; and comply       the reduction already
                                                                 with the work practice   required for viscose
                                                                 standard for closed-     process vents at
                                                                 vent systems;            existing or new
                                                                                cellulose food casing,
                                                                                rayon, cellulosic
                                                                                sponge, or cellophane
                                                                                operations, as
                                                                                applicable; and
                                                                                (3) you comply with the
                                                                                initial compliance
                                                                                requirements for
                                                                                closed-vent systems;
                                                                iii. install a nitrogen  you have a record
                                                                 unloading and storage    certifying that a
                                                                 system; or               nitrogen unloading and
                                                                                storage system is in
                                                                                use; or
                                                                iv. install a nitrogen   (1) you have a record
                                                                 unloading system;        certifying that a
                                                                 reduce uncontrolled      nitrogen unloading
                                                                 carbon disulfide by at   system is in use;
                                                                 least 0.045% from       (2) you comply with the
                                                                 viscose process vents    initial compliance
                                                                 based on a 6-month       requirements for
                                                                 rolling average; for     viscose process vents
                                                                 each vent stream that    at existing or new
                                                                 you control using a      cellulose food casing,
                                                                 control device, route    rayon, cellulosic
                                                                 the vent stream          sponge, or cellophane
                                                                 through a closed-vent    operations, as
                                                                 system to the control    applicable;
                                                                 device; and comply      (3) the 0.045%
                                                                 with the work practice   reduction must be in
                                                                 standard for closed-     addition to the
                                                                 vent systems.            reduction already
                                                                                required for viscose
                                                                                process vents at
                                                                                cellulose food casing,
                                                                                rayon, cellulosic
                                                                                sponge, or cellophane
                                                                                operations, as
                                                                                applicable; and
                                                                                (4) you comply with the
                                                                                initial compliance
                                                                                requirements for
                                                                                closed-vent systems.

6. each toluene storage vessel.......  a. each existing or new  i. reduce uncontrolled   (1) the average
                                        cellophane operation.    toluene emissions by     uncontrolled toluene
                                                                 at least 95% based on    emissions, determined
                                                                 a 6-month rolling        during the month-long
                                                                 average;                 compliance
                                                                ii. if using a control    demonstration or using
                                                                 device to reduce         engineering
                                                                 emissions, route the     assessments, are
                                                                 emissions through a      reduced by at least
                                                                 closed-vent system to    95%;
                                                                 the control device;     (2) you have a record
                                                                 and.                     of the average
                                                                iii. comply with the      operating parameter
                                                                 work practice standard   values over the month-
                                                                 for closed-vent          long compliance
                                                                 systems.                 demonstration during
                                                                                which the average
                                                                                uncontrolled toluene
                                                                                emissions were reduced
                                                                                by at least 95%;
                                                                                (3) you prepare a
                                                                                material balance that
                                                                                includes the pertinent
                                                                                data used to determine
                                                                                the percent reduction
                                                                                of toluene emissions;
                                                                                and
                                                                                (4) if venting to a
                                                                                control device to
                                                                                reduce emissions, you
                                                                                comply with the
                                                                                initial compliance
                                                                                requirements for
                                                                                closed-vent systems.
7. equipment leaks...................  a. each existing or new  i. comply with the       you comply with the
                                        cellulose ether          applicable equipment     applicable
                                        operation.               leak standards of Sec.   requirements described
                                                                  Sec.   63.162 through   in the Notification of
                                                                 63.179; or               Compliance Status
                                                                                Report provisions in
                                                                                Sec.   63.182(a)(2)
                                                                                and (c)(1) through
                                                                                (3), except that
                                                                                references to the term
                                                                                ``process unit'' mean
                                                                                ``cellulose ether
                                                                                process unit'' for the
                                                                                purposes of this
                                                                                subpart; or
                                                                ii. comply with the      you comply with the
                                                                 applicable equipment     applicable
                                                                 leak standards of Sec.   requirements described
                                                                  Sec.   63.1021          in the Initial
                                                                 through 63.1027.         Compliance Status
                                                                                Report provisions of
                                                                                Sec.   63.1039(a),
                                                                                except that references
                                                                                to the term ``process
                                                                                unit'' mean
                                                                                ``cellulose ether
                                                                                process unit'' for the
                                                                                purposes of this
                                                                                subpart.
8. all sources of wastewater           each existing or new     comply with the          you comply with the
 emissions.                             cellulose ether          applicable wastewater    applicability and
                                        operation.               provisions of Sec.       Group 1/Group 2
                                                                 63.105 and Sec.  Sec.    determination
                                                                  63.132 through 63.140.  provisions of Sec.
                                                                                63.144 and the initial
                                                                                compliance provisions
                                                                                of Sec.  Sec.   63.105
                                                                                and 63.145.
9. liquid streams in open systems....  each existing or new     comply with the          you install emission
                                        cellulose ether          applicable provisions    suppression equipment
                                        operation.               of Sec.   63.149,        and conduct an initial
                                                                 except that references   inspection according
                                                                 to ``chemical            to the provisions of
                                                                 manufacturing process    to Sec.  Sec.   63.133
                                                                 unit'' mean              through 63.137.
                                                                 ``cellulose ether
                                                                 process unit'' for the
                                                                 purposes of this
                                                                 subpart.
10. closed-vent system used to route   a. each existing or new  i. conduct annual        (1) you conduct an
 emissions to a control device.         affected source.         inspections, repair      initial inspection of
                                                                 leaks, and maintain      the closed-vent system
                                                                 records as specified     and maintain records
                                                                 in Sec.   63.148.        according to Sec.
                                                                                63.148;
                                                                                (2) you prepare a
                                                                                written plan for
                                                                                inspecting unsafe-to-
                                                                                inspect and difficult-
                                                                                to-inspect equipment
                                                                                according to Sec.
                                                                                63.148(g)(2) and
                                                                                (h)(2); and
                                                                                (3) you repair any
                                                                                leaks and maintain
                                                                                records according to
                                                                                Sec.   63.148.
11. closed-vent system containing a    a. each existing or new  i. install, calibrate,   you have a record
 bypass line that could divert a vent   affected source.         maintain, and operate    documenting that you
 stream away from a control device,                              a flow indicator as      installed a flow
 except for equipment needed for                                 specified in Sec.        indicator as specified
 safety purposes (described in Sec.                              63.148(f)(1); or         in Table 1 to this
 63.148(f)(3)).                                                                           subpart; or

                                                                ii. secure the bypass    you have record
                                                                 line valve in the        documenting that you
                                                                 closed position with a   have secured the
                                                                 car-seal or lock-and-    bypass line valve as
                                                                 key type configuration   specified in Table 1
                                                                 and inspect the seal     to this subpart.
                                                                 or closure mechanism
                                                                 at least once per
                                                                 month as specified in
                                                                 Sec.   63.148(f)(2).
12. heat exchanger system that cools   a. each existing or new  i. monitor and repair    (1) you determine that
 process equipment or materials in      affected source.         the heat exchanger       the heat exchanger
 the process unit.                                               system according to      system is exempt from
                                                                 Sec.   63.104(a)         monitoring
                                                                 through (e), except      requirements because
                                                                 that references to       it meets one of the
                                                                 ``chemical               conditions in Sec.
                                                                 manufacturing process    63.104(a)(1) through
                                                                 unit'' mean              (6), and you document
                                                                 ``cellulose food         this finding in your
                                                                 casing, rayon,           Notification of
                                                                 cellulosic sponge,       Compliance Status
                                                                 cellophane, or           Report; or
                                                                 cellulose ether         (2) if your heat
                                                                 process unit'' for the   exchanger system is
                                                                 purposes of this         not exempt, you
                                                                 subpart.                 identify in your
                                                                                Notification of
                                                                                Compliance Status
                                                                                Report the HAP or
                                                                                other representative
                                                                                substance that you
                                                                                will monitor, or you
                                                                                prepare and maintain a
                                                                                site-specific plan
                                                                                containing the
                                                                                information required
                                                                                by Sec.   63.104(c)
                                                                                (1) (i) through (iv)
                                                                                that documents the
                                                                                procedures you will
                                                                                use to detect leaks by
                                                                                monitoring surrogate
                                                                                indicators of the
                                                                                leak.
----------------------------------------------------------------------------------------------------------------

0
14. Table 4 to Subpart UUUU is amended to read as follows:

Table 4 to Subpart UUUU of Part 63--Requirements for Performance Tests

    As required in Sec. Sec.  63.5530(b) and 63.5535(a), (b), (g)(1),
and (h)(1), you must conduct performance tests, other initial
compliance demonstrations, and CEMS performance evaluations and
establish operating limits according to the requirements in the
following table:

----------------------------------------------------------------------------------------------------------------
                                                                                according to the
            For . . .                  at . . .         you must . . .        using . . .          following
                                                                                requirements . . .
----------------------------------------------------------------------------------------------------------------
1. the sum of all process vents.  a. the sum of all   i. select sampling  EPA Method 1 or 1A  sampling sites
                                   process vents.      port's location     in appendix A-1     must be located
                                                       and the number of   to 40 CFR part 60   at the inlet and
                                                       traverse points;.   of this chapter;    outlet to each
                                                                                control device;
                                                      ii. determine       EPA Method 2, 2A,   you may use EPA
                                                       velocity and        2C, 2D, 2F, or 2G   Method 2A, 2C,
                                                       volumetric flow     in appendices A-1   2D, 2F, or 2G as
                                                       rate;.              and A-2 to part     an alternative to
                                                                           60 of this          using EPA Method
                                                                           chapter.            2, as
                                                                                appropriate;
                                                      iii. conduct gas    (1) EPA Method 3,   you may use EPA
                                                       analysis; and,.     3A, or 3B in        Method 3A or 3B
                                                                           appendix A-2 to     as an alternative
                                                                           part 60 of this     to using EPA
                                                                           chapter; or,        Method 3; or,
                                                                          (2) ASME PTC 19.10- you may use ASME
                                                                           1981--Part 10       PTC 19.10-1981--
                                                                           (incorporated by    Part 10 as an
                                                                           reference--see      alternative to
                                                                           Sec.   63.14);      using the manual
                                                                           and,                procedures (but
                                                                                not instrumental
                                                                                procedures) in
                                                                                EPA Method 3B.
                                                      iv. measure         EPA Method 4 in
                                                       moisture content    appendix A-3 to
                                                       of the stack gas.   part 60 of this
                                                                           chapter.
2. the sum of all viscose         a. each existing    i. measure total    (1) EPA Method 15   (a) you must
 process vents.                    or new viscose      sulfide emissions.  in appendix A-5     conduct testing
                                   process source.                         to part 60 of       of emissions at
                                                                           this chapter; or    the inlet and
                                                                                outlet of each
                                                                                control device;
                                                                                (b) you must
                                                                                conduct testing
                                                                                of emissions from
                                                                                continuous
                                                                                viscose process
                                                                                vents and
                                                                                combinations of
                                                                                batch and
                                                                                continuous
                                                                                viscose process
                                                                                vents at normal
                                                                                operating
                                                                                conditions, as
                                                                                specified in Sec.
                                                                                63.5535;
                                                                                (c) you must
                                                                                conduct testing
                                                                                of emissions from
                                                                                batch viscose
                                                                                process vents as
                                                                                specified in Sec.
                                                                                63.490(c),
                                                                                except that the
                                                                                emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under this
                                                                                subpart supersede
                                                                                the emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under subpart U
                                                                                of this part; and
                                                                                (d) you must
                                                                                collect CPMS data
                                                                                during the period
                                                                                of the initial
                                                                                compliance
                                                                                demonstration and
                                                                                determine the
                                                                                CPMS operating
                                                                                limit during the
                                                                                period of the
                                                                                initial
                                                                                compliance
                                                                                demonstration; or
                                                                          (2) carbon          (a) you must
                                                                           disulfide and/or    measure emissions
                                                                           hydrogen sulfide    at the inlet and
                                                                           CEMS, as            outlet of each
                                                                           applicable;         control device
                                                                                using CEMS;

                                                                                (b) you must
                                                                                install, operate,
                                                                                and maintain the
                                                                                CEMS according to
                                                                                the applicable
                                                                                performance
                                                                                specification (PS-
                                                                                7, PS-8, PS-9, or
                                                                                PS-15) of 40 CFR
                                                                                part 60, appendix
                                                                                B; and
                                                                                (c) you must
                                                                                collect CEMS
                                                                                emissions data at
                                                                                the inlet and
                                                                                outlet of each
                                                                                control device
                                                                                during the period
                                                                                of the initial
                                                                                compliance
                                                                                demonstration and
                                                                                determine the
                                                                                CEMS operating
                                                                                limit during the
                                                                                period of the
                                                                                initial
                                                                                compliance
                                                                                demonstration.
3. the sum of all solvent         a. each existing    i. measure toluene  (1) EPA Method 18   (a) you must
 coating process vents.            or new cellophane   emissions.          in appendix A-6     conduct testing
                                   operation.                              to part 60 of       of emissions at
                                                                           this chapter, or    the inlet and
                                                                           Method 320 in       outlet of each
                                                                           appendix A to       control device;
                                                                           part 63; or.
                                                                                (b) you may use
                                                                                EPA Method 18 or
                                                                                320 to determine
                                                                                the control
                                                                                efficiency of any
                                                                                control device
                                                                                for organic
                                                                                compounds; for a
                                                                                combustion
                                                                                device, you must
                                                                                use only HAP that
                                                                                are present in
                                                                                the inlet to the
                                                                                control device to
                                                                                characterize the
                                                                                percent reduction
                                                                                across the
                                                                                combustion
                                                                                device;
                                                                                (c) you must
                                                                                conduct testing
                                                                                of emissions from
                                                                                continuous
                                                                                solvent coating
                                                                                process vents and
                                                                                combinations of
                                                                                batch and
                                                                                continuous
                                                                                solvent coating
                                                                                process vents at
                                                                                normal operating
                                                                                conditions, as
                                                                                specified in Sec.
                                                                                63.5535;
                                                                                (d) you must
                                                                                conduct testing
                                                                                of emissions from
                                                                                batch solvent
                                                                                coating process
                                                                                vents as
                                                                                specified in Sec.
                                                                                63.490(c),
                                                                                except that the
                                                                                emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under this
                                                                                subpart supersede
                                                                                the emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under subpart U
                                                                                of this part; and
                                                                                (d) you must
                                                                                conduct testing
                                                                                of emissions from
                                                                                batch solvent
                                                                                coating process
                                                                                vents as
                                                                                specified in Sec.
                                                                                63.490(c),
                                                                                except that the
                                                                                emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under this
                                                                                subpart supersede
                                                                                the emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under subpart U
                                                                                of this part; and
                                                                          (2) ASTM D6420-99   (a) you must
                                                                           (Reapproved 2010)   conduct testing
                                                                           (incorporated by    of emissions at
                                                                           reference--see      the inlet and
                                                                           Sec.   63.14); or.  outlet of each
                                                                                control device;
                                                                                (b) you may use
                                                                                ASTM D6420-99
                                                                                (Reapproved 2010)
                                                                                as an alternative
                                                                                to EPA Method 18
                                                                                only where: the
                                                                                target
                                                                                compound(s) are
                                                                                known and are
                                                                                listed in ASTM
                                                                                D6420-99 as
                                                                                measurable; this
                                                                                ASTM should not
                                                                                be used for
                                                                                methane and
                                                                                ethane because
                                                                                their atomic mass
                                                                                is less than 35;
                                                                                ASTM D6420 should
                                                                                never be
                                                                                specified as a
                                                                                total VOC method;
                                                                                (c) you must
                                                                                conduct testing
                                                                                of emissions from
                                                                                continuous
                                                                                solvent coating
                                                                                process vents and
                                                                                combinations of
                                                                                batch and
                                                                                continuous
                                                                                solvent coating
                                                                                process vents at
                                                                                normal operating
                                                                                conditions, as
                                                                                specified in Sec.
                                                                                63.5535;
                                                                                (d) you must
                                                                                conduct testing
                                                                                of emissions from
                                                                                batch solvent
                                                                                coating process
                                                                                vents as
                                                                                specified in Sec.
                                                                                63.490(c),
                                                                                except that the
                                                                                emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under this
                                                                                subpart supersede
                                                                                the emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under subpart U
                                                                                of this part; and
                                                                                (e) you must
                                                                                collect CPMS data
                                                                                during the period
                                                                                of the initial
                                                                                compliance
                                                                                demonstration and
                                                                                determine the
                                                                                CPMS operating
                                                                                limit during the
                                                                                period of the
                                                                                initial
                                                                                compliance
                                                                                demonstration.
                                                                          (3) ASTM D6348-     (a) you must
                                                                           12e1.               conduct testing
                                                                                of emissions at
                                                                                the inlet and
                                                                                outlet of each
                                                                                control device;

                                                                                (b) you may use
                                                                                ASTM D6348-12e1
                                                                                as an alternative
                                                                                to EPA Method 320
                                                                                only where the
                                                                                following
                                                                                conditions are
                                                                                met: (1) The test
                                                                                plan preparation
                                                                                and
                                                                                implementation in
                                                                                the Annexes to
                                                                                ASTM D 6348-03,
                                                                                Sections A1
                                                                                through A8 are
                                                                                mandatory; and
                                                                                (2) in ASTM D6348-
                                                                                03 Annex A5
                                                                                (Analyte Spiking
                                                                                Technique), the
                                                                                percent recovery
                                                                                (%R) must be
                                                                                determined for
                                                                                each target
                                                                                analyte (Equation
                                                                                A5.5). In order
                                                                                for the test data
                                                                                to be acceptable
                                                                                for a compound,
                                                                                %R must be
                                                                                greater than or
                                                                                equal to 70
                                                                                percent and less
                                                                                than or equal to
                                                                                130 percent. If
                                                                                the %R value does
                                                                                not meet this
                                                                                criterion for a
                                                                                target compound,
                                                                                the test data are
                                                                                not acceptable
                                                                                for that compound
                                                                                and the test must
                                                                                be repeated for
                                                                                that analyte
                                                                                (i.e., the
                                                                                sampling and/or
                                                                                analytical
                                                                                procedure should
                                                                                be adjusted
                                                                                before a retest).
                                                                                The %R value for
                                                                                each compound
                                                                                must be reported
                                                                                in the test
                                                                                report, and all
                                                                                field
                                                                                measurements must
                                                                                be corrected with
                                                                                the calculated %R
                                                                                value for that
                                                                                compound by using
                                                                                the following
                                                                                equation:
                                                                                Reported Results
                                                                                = ((Measured
                                                                                Concentration in
                                                                                the Stack))/(%R)
                                                                                x 100.
                                                                                (c) you must
                                                                                conduct testing
                                                                                of emissions from
                                                                                continuous
                                                                                solvent coating
                                                                                process vents and
                                                                                combinations of
                                                                                batch and
                                                                                continuous
                                                                                solvent coating
                                                                                process vents at
                                                                                normal operating
                                                                                conditions, as
                                                                                specified in Sec.
                                                                                63.5535;
                                                                                (d) you must
                                                                                conduct testing
                                                                                of emissions from
                                                                                batch solvent
                                                                                coating process
                                                                                vents as
                                                                                specified in Sec.
                                                                                63.490(c),
                                                                                except that the
                                                                                emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under this
                                                                                subpart supersede
                                                                                the emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under subpart U
                                                                                of this part; and
                                                                                (e) you must
                                                                                collect CPMS data
                                                                                during the period
                                                                                of the initial
                                                                                compliance
                                                                                demonstration and
                                                                                determine the
                                                                                CPMS operating
                                                                                limit during the
                                                                                period of the
                                                                                initial
                                                                                compliance
                                                                                demonstration.
4. the sum of all cellulose       a. each existing    i. measure total    (1) EPA Method 18   (a) you must
 ether process vents.              or new cellulose    organic HAP         in appendix A-6     conduct testing
                                   ether operation.    emissions.          to part 60 of       of emissions at
                                                                           this chapter or     the inlet and
                                                                           Method 320 in       outlet of each
                                                                           appendix A to       control device;
                                                                           part 63, or.       (b) you may use
                                                                                EPA Method 18 or
                                                                                320 to determine
                                                                                the control
                                                                                efficiency of any
                                                                                control device
                                                                                for organic
                                                                                compounds; for a
                                                                                combustion
                                                                                device, you must
                                                                                use only HAP that
                                                                                are present in
                                                                                the inlet to the
                                                                                control device to
                                                                                characterize the
                                                                                percent reduction
                                                                                across the
                                                                                combustion
                                                                                device;
                                                                                (c) you must
                                                                                conduct testing
                                                                                of emissions from
                                                                                continuous
                                                                                cellulose ether
                                                                                process vents and
                                                                                combinations of
                                                                                batch and
                                                                                continuous
                                                                                cellulose ether
                                                                                process vents at
                                                                                normal operating
                                                                                conditions, as
                                                                                specified in Sec.
                                                                                63.5535;
                                                                                (d) you must
                                                                                conduct testing
                                                                                of emissions from
                                                                                batch cellulose
                                                                                ether process
                                                                                vents as
                                                                                specified in Sec.
                                                                                63.490(c),
                                                                                except that the
                                                                                emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under this
                                                                                subpart supersede
                                                                                the emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under subpart U
                                                                                of this part; and
                                                                                (d) you must
                                                                                conduct testing
                                                                                of emissions from
                                                                                batch cellulose
                                                                                ether process
                                                                                vents as
                                                                                specified in Sec.
                                                                                63.490(c),
                                                                                except that the
                                                                                emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under this
                                                                                subpart supersede
                                                                                the emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under subpart U
                                                                                of this part; and
                                                                          (2) ASTM D6420-99   (a) you must
                                                                           (Reapproved 2010)   conduct testing
                                                                           (incorporated by    of emissions at
                                                                           reference--see      the inlet and
                                                                           Sec.   63.14); or.  outlet of each
                                                                                control device;

                                                                                (b) you may use
                                                                                ASTM D6420-99
                                                                                (Reapproved 2010)
                                                                                as an alternative
                                                                                to EPA Method 18
                                                                                only where: the
                                                                                target
                                                                                compound(s) are
                                                                                known and are
                                                                                listed in ASTM
                                                                                D6420-99 as
                                                                                measurable; this
                                                                                ASTM should not
                                                                                be used for
                                                                                methane and
                                                                                ethane because
                                                                                their atomic mass
                                                                                is less than 35;
                                                                                ASTM D6420 should
                                                                                never be
                                                                                specified as a
                                                                                total VOC method;
                                                                                (c) you must
                                                                                conduct testing
                                                                                of emissions from
                                                                                continuous
                                                                                cellulose ether
                                                                                process vents and
                                                                                combinations of
                                                                                batch and
                                                                                continuous
                                                                                cellulose ether
                                                                                process vents at
                                                                                normal operating
                                                                                conditions, as
                                                                                specified in Sec.
                                                                                63.5535;
                                                                                (d) you must
                                                                                conduct testing
                                                                                of emissions from
                                                                                batch cellulose
                                                                                ether process
                                                                                vents as
                                                                                specified in Sec.
                                                                                63.490(c),
                                                                                except that the
                                                                                emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under this
                                                                                subpart supersede
                                                                                the emission
                                                                                reductions
                                                                                required for
                                                                                process vents
                                                                                under subpart U
                                                                                of this part; and
                                                                                (e) you must
                                                                                collect CPMS data
                                                                                during the period
                                                                                of the initial
                                                                                performance test
                                                                                and determine the
                                                                                CPMS operating
                                                                                limit during the
                                                                                period of the
                                                                                initial
                                                                                performance test.
                                                                          (3) ASTM D6348-     (a) you must
                                                                           12e1.               conduct testing
                                                                                of emissions at
                                                                                the inlet and
                                                                                outlet of each
                                                                                control device;
                                                                                (b) you may use
                                                                                ASTM D6348-12e1
                                                                                as an alternative
                                                                                to EPA Method 320
                                                                                only where the
                                                                                following
                                                                                conditions are
                                                                                met: (1) The test
                                                                                plan preparation
                                                                                and
                                                                                implementation in
                                                                                the Annexes to
                                                                                ASTM D 6348-03,
                                                                                Sections A1
                                                                                through A8 are
                                                                                mandatory; and
                                                                                (2) in ASTM D6348-
                                                                                03 Annex A5
                                                                                (Analyte Spiking
                                                                                Technique), the
                                                                                percent recovery
                                                                                (%R) must be
                                                                                determined for
                                                                                each target
                                                                                analyte (Equation
                                                                                A5.5). In order
                                                                                for the test data
                                                                                to be acceptable
                                                                                for a compound,
                                                                                %R must be
                                                                                greater than or
                                                                                equal to 70
                                                                                percent and less
                                                                                than or equal to
                                                                                130 percent. If
                                                                                the %R value does
                                                                                not meet this
                                                                                criterion for a
                                                                                target compound,
                                                                                the test data are
                                                                                not acceptable
                                                                                for that compound
                                                                                and the test must