Section 326IAC10-4-12. NOx monitoring and reporting requirements

   (a) The owners and operators, and to the extent applicable, the NO_x authorized account representative of a NO_x budget unit, shall comply with the monitoring and reporting requirements as provided in this rule and in 40 CFR 75, Subpart H*. For purposes of complying with the requirements, the definitions in section 2 of this rule and 40 CFR 72.2* shall apply, and the terms affected unit, designated representative, and continuous emission monitoring system (CEMS) in 40 CFR 75* shall be replaced by the terms NO_x budget unit, NO_x authorized account representative, and continuous emission monitoring system (CEMS), respectively, as defined in section 2 of this rule.

  (b) The owner or operator of each NO_x budget unit and a unit for which an application for a NO_x budget opt-in permit is submitted and not denied or withdrawn, as provided in section 13 of this rule, must meet the following requirements:

(1) Install all monitoring systems required under this section for monitoring NO_x mass. This includes all systems required to monitor NO_x emission rate, NO_x concentration, heat input rate, and stack flow rate, in accordance with 40 CFR 75.71* and 40 CFR 75.72*.

(2) Install all monitoring systems for monitoring heat input, if required under subsection (q) for developing NO_x allowance allocations.

(3) Successfully complete all certification tests required under subsections (e) through (k) and meet all other provisions of this section and 40 CFR 75* applicable to the monitoring systems under subdivisions (1) and (2).

(4) Record, report, and quality assure the data from the monitoring systems under subdivisions (1) and (2).

  (c) The owner or operator must meet the requirements of subsection (b)(1) through (b)(3) on or before the following dates and must record, report, and quality assure the data from the monitoring systems on and after the following dates:

(1) NO_x budget units for which the owner or operator intends to apply for early reduction credits under section 15(c) of this rule must comply with the requirements of this section by May 1 of the year prior to the year in which early reduction credits will be generated.

(2) Except for NO_x budget units under subdivision (1), NO_x budget units that commence operation before January 1, 2003, must comply with the requirements of this section by May 1, 2003.

(3) NO_x budget units that commence operation on or after January 1, 2003, and that report on an annual basis under subsection (o)(4) must comply with the requirements of this section by the later of the following dates:

(A) May 1, 2003.

(B) The earlier of:

(i) one hundred eighty (180) days after the date on which the unit commences operation; or

(ii) for electricity generating units, ninety (90) days after the date that the unit commences commercial operation.

(4) NO_x budget units that commence operation on or after January 1, 2003, and that report on a control season basis under subsection (o)(4) must comply with the requirements of this section by the later of the following dates:

(A) The earlier of:

(i) one hundred eighty (180) days after the date on which the unit commences operation; or

(ii) for electricity generating units, ninety (90) days after the date on which the unit commences commercial operation.

(B) If the applicable deadline under clause (A) does not occur during an ozone control period, May 1 immediately following the date determined in accordance with clause (A).

(5) For a NO_x budget unit with a new stack or flue for which construction is completed after the applicable deadline under subdivision (1), (2), or (3) or section 13 of this rule, compliance by the later of the following dates:

(A) Ninety (90) days after the date that emissions first exit to the atmosphere through the new stack or flue.

(B) If the unit reports on a control season basis under subsection (o)(4) and the applicable deadline under clause (A) does not occur during the ozone control period, May 1 immediately following the applicable deadline in clause (A).

(6) For a unit for which an application for a NO_x budget opt-in permit is submitted and not denied or withdrawn, the compliance dates specified under section 13 of this rule.

  (d) The owner or operator of a NO_x budget unit that misses the certification deadline under subsection (c)(1):

(1) is not eligible to apply for early reduction credits under section 15 of this rule; and

(2) becomes subject to the certification deadline under subsection (c)(2).

  (e) The owner or operator of a NO_x budget under subsection (c)(3) or (c)(4) must determine, record, and report NO_x mass, heat input rate, if required for purposes of allocations, and any other values required to determine NO_x mass, for example, NO_x emission rate and heat input rate or NO_x concentration and stack flow rate, using the provisions of 40 CFR 75.70(g)*, from the date and hour that the unit starts operating until the date and hour that the continuous emission monitoring system, excepted monitoring system under 40 CFR 75, Appendix D* or E*, or excepted monitoring methodology under 40 CFR 75.19* is provisionally certified.

  (f) The following shall apply to any monitoring system, alternative monitoring system, alternative reference method, or any other alternative for a CEMS required under this rule:

(1) No owner or operator of a NO_x budget unit or a non-NO_x budget unit monitored under 40 CFR 75.72(b)(2)(ii)* shall use any alternative monitoring system, alternative reference method, or any other alternative for the required continuous emission monitoring system without having obtained prior written approval in accordance with subsection (p).

(2) No owner or operator of a NO_x budget unit or a non-NO_x budget unit monitored under 40 CFR 75.72(b)(2)(ii)* shall operate the unit so as to discharge, or allow to be discharged, NO_x emissions to the atmosphere without accounting for all the emissions in accordance with the applicable provisions of this rule and 40 CFR 75*, except as provided for in 40 CFR 75.74*.

(3) No owner or operator of a NO_x budget unit or a non-NO_x budget unit monitored under 40 CFR 75.72(b)(2)(ii)* shall disrupt the CEMS, any portion thereof, or any other approved emission monitoring method, and thereby avoid monitoring and recording NO_x mass emissions discharged into the atmosphere, except for periods of recertification or periods when calibration, quality assurance testing, or maintenance is performed in accordance with the applicable provisions of this rule and 40 CFR 75* except as provided for in 40 CFR 75.74*.

(4) No owner or operator of a NO_x budget unit or a non-NO_x budget unit monitored under 40 CFR 75.72(b)(2)(ii)* shall retire or permanently discontinue use of the CEMS, any component thereof, or any other approved emission monitoring system under this section, except under one (1) of the following circumstances:

(A) During the period that the unit is covered by a retired unit exemption under section 3 of this rule.

(B) The owner or operator is monitoring emissions from the unit with another certified monitoring system approved, in accordance with the applicable provisions of this rule and 40 CFR 75*, by the department for use at that unit that provides emission data for the same pollutant or parameter as the retired or discontinued monitoring system.

(C) The NO_x authorized account representative submits notification of the date of certification testing of a replacement monitoring system in accordance with subsection (h)(2).

  (g) The owner or operator of a NO_x budget unit that is subject to an acid rain emissions limitation shall comply with the initial certification and recertification procedures of 40 CFR 75*, except the following:

(1) If, prior to January 1, 1998, the U.S. EPA approved a petition under 40 CFR 75.17(a)* or 40 CFR 75.17(b)* for apportioning the NO_x emission rate measured in a common stack or a petition under 40 CFR 75.66* for an alternative to a requirement in 40 CFR 75.17*, the NO_x authorized account representative shall resubmit the petition to the U.S. EPA under subsection (p)(1) to determine if the approval applies under the NO_x budget trading program.

(2) For any additional CEMS required under the common stack provisions in 40 CFR 75.72*, or for any NO_x concentration CEMS used under the provisions of 40 CFR 75.71(a)(2)*, the owner or operator shall meet the requirements of subsection (h).

  (h) The owner or operator of a NO_x budget unit that is not subject to an acid rain emissions limitation shall comply with the following initial certification and recertification procedures, except that the owner or operator of a unit that qualifies to use the low mass emissions excepted monitoring methodology under 40 CFR 75.19* shall also meet the requirements of subsection (j) and the owner or operator of a unit that qualifies to use an alternative monitoring system under 40 CFR 75, Subpart E* shall also meet the requirements of subsection (k). The owner or operator of a NO_x budget unit that is subject to an acid rain emissions limitation, but requires additional CEMS under the common stack provisions in 40 CFR 75.72*, or that uses a NO_x concentration CEMS under 40 CFR 75.71(a)(2)* also shall comply with the following initial certification and recertification procedures:

(1) The owner or operator shall ensure that each monitoring system required by 40 CFR 75, Subpart H*, that includes the automated data acquisition and handling system, successfully completes all of the initial certification testing required under 40 CFR 75.20*. The owner or operator shall ensure that all applicable certification tests are successfully completed by the deadlines specified in subsection (c). In addition, whenever the owner or operator installs a monitoring system in order to meet the requirements of this section in a location where no monitoring system was previously installed, initial certification according to 40 CFR 75.20* is required.

(2) Whenever the owner or operator makes a replacement, modification, or change in a certified CEMS that may significantly affect the ability of the system to accurately measure or record NO_x mass emissions or heat input or to meet the requirements of 40 CFR 75.21* or 40 CFR 75, Appendix B*, the owner or operator shall recertify the monitoring system according to 40 CFR 75.20(b)*. Furthermore, whenever the owner or operator makes a replacement, modification, or change to the flue gas handling system or the unit's operation that may significantly change the flow or concentration profile, the owner or operator shall recertify the CEMS according to 40 CFR 75.20(b)*. Examples of changes that require recertification include replacement of the analyzer, change in location or orientation of the sampling probe or site, or changing of flow rate monitor polynomial coefficients.

(3) Requirements for the certification approval process for initial certifications and recertification are as follows:

(A) The NO_x authorized account representative shall submit to the appropriate U.S. EPA regional office and the department a written notice of the dates of certification in accordance with subsection (n).

(B) The NO_x authorized account representative shall submit to the department a certification application for each CEMS required under 40 CFR 75, Subpart H*. A complete certification application shall include the information specified in 40 CFR 75, Subpart H*.

(C) Except for units using the low mass emission excepted methodology under 40 CFR 75.19*, the provisional certification date for a monitor shall be determined using the procedures set forth in 40 CFR 75.20(a)(3)*. A provisionally certified monitor may be used under the NO_x budget trading program for a period of time not to exceed one hundred twenty (120) days after receipt by the department of the complete certification application for the CEMS or associated component thereof under clause (B). Data measured and recorded by the provisionally certified CEMS or associated component thereof, in accordance with the requirements of 40 CFR 75*, shall be considered valid quality assured data, retroactive to the date and time of provisional certification, provided that the department does not invalidate the provisional certification by issuing a notice of disapproval within one hundred twenty (120) days of receipt of the complete certification application by the department.

(D) The department shall issue a written notice of approval or disapproval of the certification application to the owner or operator within one hundred twenty (120) days of receipt of the complete certification application under clause (B). In the event the department does not issue a notice within the one hundred twenty (120) day period, each CEMS that meets the applicable performance requirements of 40 CFR 75* and is included in the certification application shall be deemed certified for use under the NO_x budget trading program. The issuance of notices shall be as follows:

(i) If the certification application is complete and shows that each monitoring system meets the applicable performance requirements of 40 CFR 75*, then the department shall issue a written notice of approval of the certification application within one hundred twenty (120) days of receipt.

(ii) A certification application shall be considered complete when all of the applicable information required to be submitted under clause (B) has been received by the department. If the certification application is not complete, then the department shall issue a written notice of incompleteness that sets a reasonable date by which the NO_x authorized account representative must submit the additional information required to complete the certification application. If the NO_x authorized account representative does not comply with the notice of incompleteness by the specified date, then the department may issue a notice of disapproval under item (iii).

(iii) If the certification application shows that any CEMS or associated component thereof does not meet the performance requirements of this rule, or if the certification application is incomplete and the requirement for disapproval under item (ii) has been met, the department shall issue a written notice of disapproval of the certification application. Upon issuance of the notice of disapproval, the provisional certification is invalidated by the department and the data measured and recorded by each uncertified CEMS or associated component thereof shall not be considered valid quality-assured data beginning with the date and hour of provisional certification. The owner or operator shall follow the procedures for loss of certification in subsection (i) for each CEMS or associated component thereof which is disapproved for initial certification.

(iv) The department may issue a notice of disapproval of the certification status of a monitor in accordance with subsection (m).

  (i) If the department issues a notice of disapproval of a certification application under subsection (h)(3)(D)(iii) or a notice of disapproval of certification status under subsection (h)(3)(D)(iv), then the following shall apply:

(1) The owner or operator shall substitute the following values, for each hour of unit operation during the period of invalid data specified in 40 CFR 75.20(a)(4)(iii)*, 40 CFR 75.20(b)(5)*, 40 CFR 75.20(h)(4)*, or 40 CFR 75.21(e)* and continuing until the date and hour specified under 40 CFR 75.20(a)(5)(i)*:

(A) For units that the owner or operator is monitoring or intending to monitor for NO_x emission rate and heat input rate or intends to use or is using the low mass emission excepted methodology under 40 CFR 75.19*:

(i) the maximum potential NO_x emission rate; and

(ii) the maximum potential hourly heat input of the unit.

(B) For units monitoring or intending to monitor for NO_x mass emissions using a NO_x pollutant concentration monitor and a flow monitor:

(i) the maximum potential concentration of NO_x; and

(ii) the maximum potential flow rate of the unit under 40 CFR 75, Appendix A, Section 2*.

(2) The NO_x authorized account representative shall submit a notification of certification retest dates and a new certification application in accordance with subsection (h)(3)(A) and (h)(3)(C).

(3) The owner or operator shall repeat all certification tests or other requirements that were failed by the monitoring system, as indicated in the department's notice of disapproval, no later than thirty (30) unit operating days after the date of issuance of the notice of disapproval.

  (j) The owner or operator of a gas-fired or oil-fired unit using the low mass emissions excepted methodology under 40 CFR 75.19* and not subject to an acid rain program emissions limitation under 40 CFR 72* shall meet the applicable general operating requirements of 40 CFR 75.10*, the applicable requirements of 40 CFR 75.19*, and the applicable certification requirements of subsections (h) and (i), except that the excepted methodology shall be deemed provisionally certified for use under the NO_x budget trading program, as of the following dates:

(1) For a unit that does not have monitoring equipment initially certified or recertified as of the date on which the NO_X authorized account representative submits the certification application under 40 CFR 75.19* for the unit, starting on the date of such submission until the completion of the period for the department's review.

(2) For a unit that has monitoring equipment initially certified or recertified as of the date on which the NO_X authorized account representative submits the certification application under 40 CFR 75.19* for the unit and that reports data on an annual basis under 40 CFR 97.74(d)*, starting January 1 of the year after the year of the certification application submission until the completion of the period for the department's review.

(3) For a unit that has monitoring equipment initially certified or recertified as of the date on which the NO_X authorized account representative submits the certification application under 40 CFR 75.19* for the unit and that reports on a control season basis under 40 CFR 97.74(d)*, starting May 1 of the ozone control period after the year of such submission until the completion of the period for the department's review.

  (k) The NO_x authorized account representative representing the owner or operator of each unit applying to monitor using an alternative monitoring system approved by the U.S. EPA and, if applicable, the department under 40 CFR 75, Subpart E* shall apply to the department for certification prior to use of the system under the NO_x trading program. The NO_x authorized account representative shall apply for recertification following a replacement, modification, or change according to the procedures in subsection (h). The owner or operator of an alternative monitoring system shall comply with the notification and application requirements for certification according to the procedures specified in subsection (h)(3) and 40 CFR 75.20(f)*.

  (l) Whenever any monitoring system fails to meet the quality assurance requirements of 40 CFR 75*, data shall be substituted using the applicable procedures in:

(1) 40 CFR 75, Subpart D*;

(2) 40 CFR 75, Appendix D*; or

(3) 40 CFR 75, Appendix E*.

  (m) Whenever both an audit of a monitoring system and a review of the initial certification or recertification application reveal that any system or associated component should not have been certified or recertified because it did not meet a particular performance specification or other requirement under subsections (e) through (k) or the applicable provisions of 40 CFR 75*, both at the time of the initial certification or recertification application submission and at the time of the audit, the department shall issue a notice of disapproval of the certification status of the system or associated component. For the purposes of this subsection, an audit shall be either a field audit or an audit of any information submitted to the U.S. EPA or the department. By issuing the notice of disapproval, the department revokes prospectively the certification status of the system or component. The data measured and recorded by the system or component shall not be considered valid quality-assured data from the date of issuance of the notification of the revoked certification status until the date and time that the owner or operator completes subsequently approved initial certification or recertification tests. The owner or operator shall follow the initial certification or recertification procedures in subsections (e) through (k) for each disapproved system or component.

  (n) The NO_x authorized account representative for a NO_x budget unit shall submit written notice to the department, the U.S. EPA, and the appropriate U.S. EPA Regional Office in accordance with 40 CFR 75.61*, except that if the unit is not subject to an acid rain emissions limitation, the notification is only required to be sent to the department.

  (o) The NO_x authorized account representative shall comply with all record keeping and reporting requirements in this subsection and with the requirements of section 6(e) of this rule as follows:

(1) If the NO_x authorized account representative for a NO_x budget unit subject to an acid rain emission limitation who signed and certified any submission that is made under 40 CFR 75, Subpart F* or 40 CFR 75, Subpart G* and that includes data and information required under this section or 40 CFR 75, Subpart H* is not the same person as the designated representative or the alternative designated representative for the unit under 40 CFR 72*, the submission must also be signed by the designated representative or the alternative designated representative.

(2) The owner or operator of a NO_x budget unit shall comply with the following monitoring plan requirements:

(A) The owner or operator of a unit subject to an acid rain emissions limitation shall comply with requirements of 40 CFR 75.62*, except that the monitoring plan shall also include all of the information required by 40 CFR 75, Subpart H*.

(B) The owner or operator of a unit that is not subject to an acid rain emissions limitation shall comply with requirements of 40 CFR 75.62*, except that the monitoring plan is only required to include the information required by 40 CFR 75, Subpart H*.

(3) The NO_x authorized account representative shall submit an application to the department within forty-five (45) days after completing all initial certification or recertification tests required under subsections (e) through (k), including the information required under 40 CFR 75, Subpart H*.

(4) The NO_x authorized account representative shall submit quarterly reports as follows:

(A) If a unit is subject to an acid rain emission limitation or if the owner or operator of the NO_x budget unit chooses to meet the annual reporting requirements of this section, the NO_x authorized account representative shall submit a quarterly report for each calendar quarter beginning with:

(i) the units that elect to comply with the early reduction credit provisions under section 15 of this rule, the calendar quarter that includes the date of initial provisional certification under subsection (h)(3)(C) or (j). Data shall be reported from the date and hour corresponding to the date and hour of provisional certification;

(ii) the units commencing operation prior to May 31, 2004, that are not required to certify monitors by May 1 prior to the year in which early reduction credits are generated under subsection (c)(1), the earlier of the calendar quarter that includes the date of initial provisional certification under subsection (h)(3)(C) or (j) or, if the certification tests are not completed by May 1, 2003, the partial calendar quarter from May 1, 2003, through June 30, 2003. Data shall be recorded and reported from the earlier of the date and hour corresponding to the date and hour of provisional certification or the first hour on May 1, 2003; or

(iii) for a unit that commences operation after May 1, 2003, the calendar quarter in which the unit commences operation. Data shall be reported from the date and hour corresponding to when the unit commenced operation.

(B) If a NO_x budget unit is not subject to an acid rain emission limitation, then the NO_x authorized account representative shall do either the following:

(i) Meet all of the requirements of 40 CFR 75* related to monitoring and reporting NO_x mass emissions during the entire year and meet the reporting deadlines specified in clause (A)(i).

(ii) Submit quarterly reports covering the period May 1 through September 30 of each year and including the data described in 40 CFR 75.74(c)(6)*. The NO_x authorized account representative shall submit a quarterly report for each calendar quarter, beginning with the following:

(AA) The units that elect to comply with the early reduction credit provisions under section 15 of this rule, the calendar quarter that includes the date of initial provisional certification under subsection (h)(3)(C) or (j). Data shall be reported from the date and hour corresponding to the date and hour of provisional certification.

(BB) The units commencing operation prior to May 1, 2003, that are not required to certify monitors by May 1, 2002, under subsection (c)(1), the earlier of the calendar quarter that includes the date of initial provisional certification under subsection (h)(3)(C), or if the certification tests are not completed by May 1, 2003, the partial calendar quarter from May 1, 2003 through June 30, 2003. Data shall be reported from the earlier of the date and hour corresponding to the date and hour of provisional certification or the first hour of May 1, 2003.

(CC) For units that commence operation after May 1, 2003, during the ozone control period, the calendar quarter in which the unit commences operation. Data shall be reported from the date and hour corresponding to when the unit commenced operation.

(DD) For units that commence operation after May 1, 2003, and before May 1 of the year in which the unit commences operation, the earlier of the calendar quarter that includes the date of initial provisional certification under subsection (h)(3)(C) or (j) or, if the certification tests are not completed by May 1 of the year in which the unit commences operation, May 1 of the year in which the unit commences operation. Data shall be reported from the earlier of the date and hour corresponding to the date and hour of provisional certification or the first hour of May 1 of the year after the unit commences operation.

(EE) For units that commence operation after May 1, 2003, and after September 30 of the year in which the unit commences operation, the earlier of the calendar quarter that includes the date of initial provisional certification under subsection (h)(3)(C) or (j) or, if the certification tests are not completed by May 1 of the year after the unit commences operation, May 1 of the year after the unit commences operation. Data shall be reported from the earlier of the date and hour corresponding to the date and hour of provisional certification or the first hour of May 1 of the year after the unit commences operation.

(C) The NO_x authorized account representative shall submit each quarterly report to the U.S. EPA within thirty (30) days following the end of the calendar quarter covered by the report. Quarterly reports shall be submitted in the manner specified in 40 CFR 75, Subpart H* and 40 CFR 75.64* and the following:

(i) For units subject to an acid rain emissions limitation, quarterly reports shall include all of the data and information required in 40 CFR 75, Subpart H* for each NO_x budget unit, or group of units using a common stack, as well as information required in 40 CFR 75, Subpart G*.

(ii) For units not subject to an acid rain emissions limitation, quarterly reports are only required to include all of the data and information required in 40 CFR 75, Subpart H* for each NO_x budget unit, or group of units using a common stack.

(D) The NO_x authorized account representative shall submit to the department and the U.S. EPA a compliance certification in support of each quarterly report based on reasonable inquiry of those persons with primary responsibility for ensuring that all of the unit's emissions are correctly and fully monitored. The certification shall state the following:

(i) The monitoring data submitted were recorded in accordance with the applicable requirements of this section and 40 CFR 75*, including the quality assurance procedures and specifications.

(ii) For a unit with add-on NO_x emission controls and for all hours where data are substituted in accordance with 40 CFR 75.34(a)(1)*, the add-on emission controls were operating within the range of parameters listed in the quality assurance and quality control program under 40 CFR 75, Appendix B* and the substitute values do not systematically underestimate NO_x emissions.

(iii) For a unit that is reporting on an ozone control period basis under this subdivision, the NO_x emission rate and NO_x concentration values substituted for missing data under 40 CFR 75, Subpart D* are calculated using only values from an ozone control period and do not systematically underestimate NO_x emissions.

  (p) A petition requesting approval of alternatives to any requirement of this section may be made as follows:

(1) The NO_x authorized account representative of a NO_x budget unit that is subject to an acid rain emissions limitation may submit a petition under 40 CFR 75.66* to the U.S. EPA requesting approval to apply an alternative to any requirement of this section as follows:

(A) Application for an alternative to any requirement of this section is in accordance with this subsection only to the extent that the petition is approved by the U.S. EPA, in consultation with the department.

(B) Notwithstanding this subdivision, if the petition requests approval to apply an alternative to a requirement concerning any additional CEMS required under the common stack provisions of 40 CFR 75.72*, the petition is governed by subdivision (2).

(2) The NO_x authorized account representative of a NO_x budget unit that is not subject to an acid rain emissions limitation may submit a petition under 40 CFR 75.66* to the department and the U.S. EPA requesting approval to apply an alternative to any requirement of this section as follows:

(A) The NO_x authorized account representative of a NO_x budget unit that is subject to an acid rain emissions limitation may submit a petition under 40 CFR 75.66* to the department and the U.S. EPA requesting approval to apply an alternative to a requirement concerning any additional CEMS required under the common stack provisions of 40 CFR 75.72* or a NO_x concentration CEMS used under 40 CFR 75.71(a)(2)*.

(B) Application of an alternative to any requirement of this section is in accordance with this section only to the extent the petition under this subsection is approved by both the department and the U.S. EPA.

  (q) The following applies to the monitoring and reporting of NO_x mass emissions:

(1) The owner or operator of a unit that elects to monitor and report NO_x mass emissions using a NO_x concentration system and a flow system shall also monitor and report heat input at the unit level using the procedures set forth in 40 CFR 75* for any source that has source allocations based upon heat input.

(2) The owner or operator of a unit that monitors and reports NO_x mass emissions using a NO_x concentration system and a flow system shall also monitor and report heat input at the unit level using the procedures set forth in 40 CFR 75* for any source that is applying for early reduction credits under section 15(b) of this rule.

  *These documents are incorporated by reference, and copies may be obtained from the Government Printing Office, 732 North Capitol Street NW, Washington, D.C. 20401 or are available for copying at the Indiana Department of Environmental Management, Office of Air Quality, Indiana Government Center-North, Tenth Floor, 100 North Senate Avenue, Indianapolis, Indiana 46204. (Air Pollution Control Division; 326 IAC 10-4-12; filed Aug 17, 2001, 3:45 p.m.: 25 IR 42; errata filed Nov 29, 2001, 12:20 p.m.: 25 IR 1184; errata filed Dec 12, 2002, 3:35 p.m.: 26 IR 1569)