The following words and terms, when used in this Part, shall have the following meaning, unless the context clearly indicates otherwise. Except as specifically provided in this Section, terms used in this Part retain the meaning accorded them under the applicable requirements of the Act.

"Administratively complete" means an application that provides:

1. (A) All information required under OAC 252:100-8-5(c), (d), or (e);
2. (B) A landowner affidavit as required by OAC 252:4-7-13(b);
3. (C) The appropriate application fees as required by OAC 252:100-8-1.7; and
4. (D) Certification by the responsible official as required by OAC 252:100-8-5(f).

"Affected source" means the same as the meaning given to it in the regulations promulgated under Title IV (acid rain) of the Act.

"Affected states" means:

1. (A) all states:

   1. (i) That are one of the following contiguous states: Arkansas, Colorado, Kansas, Missouri, New Mexico and Texas, and
   2. (ii) That in the judgment of the DEQ may be directly affected by emissions from the facility seeking the permit, permit modification, or permit renewal being proposed; or
2. (B) all states that are within 50 miles of the permitted source.

"Affected unit" means the same as the meaning given to it in the regulations promulgated under Title IV (acid rain) of the Act.

"Applicable requirement" means all of the following as they apply to emissions units in a Part 70 source subject to this Chapter (including requirements that have been promulgated or approved by EPA through rulemaking at the time of issuance but have future effective compliance dates):

1. (A) Any standard or other requirements provided for in the applicable implementation plan approved or promulgated by EPA through rulemaking under Title I of the Act that implements the relevant requirements of the Act, including any revisions to that plan promulgated in 40 CFR Part 52;
2. (B) Any term or condition of any preconstruction permits issued pursuant to regulations approved or promulgated through rulemaking under Title I, including parts C or D, of the Act;
3. (C) Any standard or other requirement under section 111 of the Act, including section 111(d);
4. (D) Any standard or other requirement under section 112 of the Act, including any requirement concerning accident prevention under section 112(r)(7) of the Act, but not including the contents of any risk management plan required under 112(r) of the Act;
5. (E) Any standard or other requirement of the acid rain program under Title IV of the Act or the regulations promulgated thereunder;
6. (F) Any requirements established pursuant to section 504(b) or section 114(a)(3) of the Act;
7. (G) Any standard or other requirement governing solid waste incineration, under section 129 of the Act;
8. (H) Any standard or other requirement for consumer and commercial products, under section 183(e) of the Act;
9. (I) Any standard or other requirement for tank vessels, under section 183(f) of the Act;
10. (J) Any standard or other requirement of the regulations promulgated to protect stratospheric ozone under Title VI of the Act, unless the Administrator has determined that such requirements need not be contained in a Title V permit; and
11. (K) Any national ambient air quality standard or increment or visibility requirement under part C of Title I of the Act, but only as it would apply to temporary sources permitted pursuant to section 504(e) of the Act.

"Begin actual construction" means for purposes of this Part, that the owner or operator has begun the construction or installation of the emitting equipment on a pad or in the final location at the facility.

"Designated representative" means with respect to affected units, a responsible person or official authorized by the owner or operator of a unit to represent the owner or operator in matters pertaining to the holding, transfer, or disposition of allowances allocated to a unit, and the submission of and compliance with permits, permit applications, and compliance plans for the unit.

"Draft permit" means the version of a permit for which the DEQ offers public participation under 27A O.S.§§ 2-14-101 through 2-14-401 and OAC 252:4-7 or affected State review under OAC 252:100-8-8.

"Emergency" means, when used in OAC 252:100-8-6(a)(3)(C)(iii)(I) and (e), any situation arising from sudden and reasonably unforeseeable events beyond the control of the source, including acts of God, which situation requires immediate corrective action to restore normal operation, and that causes the source to exceed a technology-based emission limitation under the permit, due to unavoidable increases in emissions attributable to the emergency. An emergency shall not include noncompliance to the extent caused by improperly designed equipment, lack of preventive maintenance, careless or improper operation, or operator error.

"Emissions allowable under the permit" means a federally enforceable permit term or condition determined at issuance to be required by an applicable requirement that establishes an emissions limit (including a work practice standard) or a federally enforceable emissions cap that the source has assumed to avoid an applicable requirement to which the source would otherwise be subject.

"Emissions unit" means any part or activity of a stationary source that emits or has the potential to emit any regulated air pollutant or any pollutant listed under section 112(b) of the Act. Fugitive emissions from valves, flanges, etc. associated with a specific unit process shall be identified with that specific emission unit. This term is not meant to alter or affect the definition of the term "unit" for purposes of Title IV of the Act.

"Enhanced NSR process" means a process under which the evaluation of requirements applicable under NSR is integrated with a full determination of procedural and compliance requirements under the Part 70 source (Title V) operating permit program. This process is an alternative to traditional NSR process, and is only available for facilities already operating under a Title V permit. Under the enhanced NSR process, the 30-day public review period for a draft NSR permit is integrated with the 45-day EPA review of the Title V permit and would allow for the issuance of a major source construction permit whose applicable Title V implications have also been reviewed. Therefore, the applicable requirements of the construction permit may later be incorporated as a modification to the Title V operating permit using the administrative amendment process of OAC 252:100-8-7.2(a) - without further public or EPA review, as authorized in OAC 252:4-7-13(g)(4).

"Final permit" means the version of a part 70 permit issued by the DEQ that has completed all review procedures required by OAC 252:100-8-7 through 252:100-8-7.5 and OAC 252:100-8-8.

"Fugitive emissions" means those emissions of regulated air pollutants which could not reasonably pass through a stack, chimney, vent, or other functionally-equivalent opening.

"General permit" means a part 70 permit that meets the requirements of OAC 252:100-8-6.1.

"Insignificant activities" means individual emissions units that are either on the list approved by the Administrator and contained in Appendix I, or whose actual calendar year emissions do not exceed any of the limits in (A) and (B) of this definition. Any activity to which a State or federal applicable requirement applies is not insignificant even if it meets the criteria below or is included on the insignificant activities list.

1. (A) 5 tons per year (TPY) of any one criteria pollutant.
2. (B) 2 tons per year for any one hazardous air pollutant (HAP) or 5 tons per year for an aggregate of two or more HAPs, or 20 percent of any threshold less than 10 tons per year for single HAP that the EPA may establish by rule.

"MACT" means maximum achievable control technology.

"Major source" means any stationary source (or any group of stationary sources that are located on one or more contiguous or adjacent properties and are under common control of the same person (or persons under common control)) belonging to a single major industrial grouping and that is described in subparagraph (A), (B), or (C) of this definition. For the purposes of defining "major source," a stationary source or group of stationary sources shall be considered part of a single industrial grouping if all of the pollutant emitting activities at such source or group of sources on contiguous or adjacent properties belong to the same Major Group (i.e., all have the same two-digit primary SIC code) as described in the Standard Industrial Classification Manual, 1987. For onshore activities belonging to Standard Industrial Classification (SIC) Major Group 13: Oil and Gas Extraction, pollutant emitting activities shall be considered adjacent if they are located on the same surface site; or if they are located on surface sites that are located within 1/4 mile of one another (measured from the center of the equipment on the surface site) and they share equipment. Shared equipment includes, but is not limited to, produced fluids storage tanks, phase separators, natural gas dehydrators, or emissions control devices. Surface site, as used in this definition, has the same meaning as in 40 CFR 63.761.

1. (A) A major source under section 112 of the Act, which is defined as:

   1. (i) For pollutants other than radionuclides, any stationary source or group of stationary sources located within a contiguous area and under common control that emits or has the potential to emit, in the aggregate, 10 TPY or more of any hazardous air pollutant which has been listed pursuant to section 112(b) of the Act, 25 TPY or more of any combination of such hazardous air pollutants, or such lesser quantity as the Administrator may establish by rule. Notwithstanding the preceding sentence, emissions from any oil or gas exploration or production well (with its associated equipment) and emissions from any pipeline compressor or pump station shall not be aggregated with emissions from other similar units, whether or not such units are in a contiguous area or under common control, to determine whether such units or stations are major sources; or
   2. (ii) For radionuclides, "major source" shall have the meaning specified by the Administrator by rule.

2. (B) A major stationary source of air pollutants, as defined in section 302 of the Act, that directly emits or has the potential to emit, 100 TPY or more of any air pollutant (except gross particulate matter and GHGs, as individual pollutants and as an aggregate) subject to regulation (including any major source of fugitive emissions of any such pollutant, as determined by rule by the Administrator). The fugitive emissions of a stationary source shall not be considered in determining whether it is a major stationary source for the purposes of section 302(j) of the Act, unless the source belongs to one of the following categories of stationary sources:

   1. (i) Coal cleaning plants (with thermal dryers);
   2. (ii) Kraft pulp mills;
   3. (iii) Portland cement plants;
   4. (iv) Primary zinc smelters;
   5. (v) Iron and steel mills;
   6. (vi) Primary aluminum ore reduction plants;
   7. (vii) Primary copper smelters;
   8. (viii) Municipal incinerators capable of charging more than 250 tons of refuse per day;
   9. (ix) Hydrofluoric, sulfuric, or nitric acid plants;
   10. (x) Petroleum refineries;
   11. (xi) Lime plants;
   12. (xii) Phosphate rock processing plants;
   13. (xiii) Coke oven batteries;
   14. (xiv) Sulfur recovery plants;
   15. (xv) Carbon black plants (furnace process);
   16. (xvi) Primary lead smelters;
   17. (xvii) Fuel conversion plants;
   18. (xviii) Sintering plants;
   19. (xix) Secondary metal production plants;
   20. (xx) Chemical process plants (not including ethanol production facilities that produce ethanol by natural fermentation included in NAICS codes 325193 or 312140);
   21. (xxi) Fossil-fuel boilers (or combination thereof) totaling more than 250 million British thermal units per hour heat input;
   22. (xxii) Petroleum storage and transfer units with a total storage capacity exceeding 300,000 barrels;
   23. (xxiii) Taconite ore processing plants;
   24. (xxiv) Glass fiber processing plants;
   25. (xxv) Charcoal production plants;
   26. (xxvi) Fossil-fuel-fired steam electric plants of more than 250 million British thermal units per hour heat input; or
   27. (xxvii) All other stationary source categories which, as of August 7, 1980, are being regulated by a standard promulgated under section 111 or 112 of the Act.

3. (C) A major stationary source as defined in part D of Title I of the Act, including:

   1. (i) For ozone nonattainment areas, sources with the potential to emit 100 TPY or more of volatile organic compounds or oxides of nitrogen in areas classified or treated as classified as "Marginal" or "Moderate," 50 TPY or more in areas classified or treated as classified as "Serious," 25 TPY or more in areas classified or treated as classified as "Severe," and 10 TPY or more in areas classified or treated as classified as "Extreme"; except that the references in this paragraph to 100, 50, 25, and 10 TPY of nitrogen oxides shall not apply with respect to any source for which the Administrator has made a finding, under section 182(f)(1) or (2) of the Act, that requirements under section 182(f) of the Act do not apply;
   2. (ii) For ozone transport regions established pursuant to section 184 of the Act, sources with the potential to emit 50 TPY or more of volatile organic compounds;

   3. (iii) For carbon monoxide nonattainment areas:

      1. (I) that are classified or treated as classified as "Serious"; and
      2. (II) in which stationary sources contribute significantly to carbon monoxide levels as determined under rules issued by the Administrator, sources with the potential to emit 50 TPY or more of carbon monoxide; and
   4. (iv) For particulate matter (PM₁₀) nonattainment areas classified or treated as classified as "Serious," sources with the potential to emit 70 TPY or more of PM₁₀.

"Maximum capacity" means the quantity of air contaminants that theoretically could be emitted by a stationary source without control devices based on the design capacity or maximum production capacity of the source and 8,760 hours of operation per year. In determining the maximum theoretical emissions of VOCs for a source, the design capacity or maximum production capacity shall include the use of raw materials, coatings and inks with the highest VOC content used in practice by the source.

"Permit" means (unless the context suggests otherwise) any permit or group of permits covering a Part 70 source that is issued, renewed, amended, or revised pursuant to this Chapter.

"Permit modification" means a revision to a Part 70 source construction or operating permit that meets the requirements of OAC 252:100-8-7.2(b).

"Permit program costs" means all reasonable (direct and indirect) costs required to develop and administer a permit program, as set forth in OAC 252:100-5-2.2 (whether such costs are incurred by the DEQ or other State or local agencies that do not issue permits directly, but that support permit issuance or administration).

"Permit revision" means any permit modification or administrative permit amendment.

"Potential to emit" means the maximum capacity of a stationary source to emit any air pollutant under its physical and operational design. Any physical or operational limitation on the capacity of a source to emit an air pollutant, including air pollution control equipment and restrictions on hours of operation or on the type or amount of material combusted, stored, or processed, shall be treated as part of its design if the limitation is enforceable by the Administrator. This term does not alter or affect the use of this term for any other purposes under the Act, or the term "capacity factor" as used in Title IV of the Act or the regulations promulgated thereunder.

"Proposed permit" means the version of a permit that the DEQ proposes to issue and forwards to the Administrator for review in compliance with OAC 252:100-8-8.

"Regulated air pollutant" means the following:

1. (A) Nitrogen oxides or any volatile organic compound (VOC), including those substances defined in OAC 252:100-1-3, 252:100-37-2, and 252:100-39-2, except those specifically excluded in the EPA definition of VOC in 40 CFR 51.100(s);
2. (B) Any pollutant for which a national ambient air quality standard has been promulgated;
3. (C) Any pollutant that is subject to any standard promulgated under section 111 of the Act;
4. (D) Any Class I or II ozone-depleting substance subject to a standard promulgated under or established by Title VI of the Act;

5. (E) Any pollutant subject to a standard promulgated under section 112 or other requirements established under section 112 of the Act (Hazardous Air Pollutants), including sections 112(g) (Modifications), (j) (Equivalent Emission Limitation by Permit, and (r) (Prevention of Accidental Releases), including the following:

   1. (i) any pollutant subject to the requirements under section 112(j) of the Act. If the Administrator fails to promulgate a standard by the date established pursuant to section 112(e) of the Act (Schedule for Standards and Review), any pollutant for which a subject source would be major shall be considered to be regulated as to that source on the date 18 months after the applicable date established pursuant to section 112(e) of the Act; and,
   2. (ii) any pollutant for which the requirements of section 112(g)(2) of the Act have been met, but only with respect to the individual source subject to the section 112(g)(2) requirement; or
6. (F) Any other substance for which an air emission limitation or equipment standard is set by an existing permit or regulation.

"Renewal" means the process by which a permit is reissued at the end of its term.

"Section 502(b)(10) changes" means changes that contravene an express permit term. Such changes do not include changes that would violate applicable requirements or contravene federally enforceable permit terms and conditions that are monitoring (including test methods), recordkeeping, reporting, or compliance certification requirements.

"Small unit" means a fossil fuel fired combustion device which serves a generator with a name plate capacity of 25 MWe or less.

"State-only requirement" means any standard or requirement pursuant to Oklahoma Clean Air Act (27A O.S. §§ 2-5-101 through 2-5-118, as amended) that is not contained in the State Implementation Plan (SIP).

"State program" means a program approved by the Administrator under 40 CFR Part 70.

"Stationary source" means any building, structure, facility, or installation that emits or may emit any regulated air pollutant or any pollutant listed under section 112(b) of the Act as it existed on January 2, 2006.

"Subject to regulation" means, for any air pollutant, that the pollutant is subject to either a provision in the federal Clean Air Act, or a nationally-applicable regulation codified by the EPA Administrator in subchapter C of Chapter I of 40 CFR, that requires actual control of the quantity of emissions of that pollutant, and that such a control requirement has taken effect and is operative to control, limit, or restrict the quantity of emissions of that pollutant released from the regulated activity. Except that:

1. (A) Greenhouse gases (GHG) shall not be subject to regulation unless, as of July 1, 2011, the GHG emissions are at a stationary source emitting or having the potential to emit 100,000 TPY CO₂ equivalent emissions (CO₂e) and are otherwise subject to regulation as previously described in this definition.
2. (B) The term TPY CO₂ equivalent emissions (CO₂e) shall represent an amount of GHG emitted, and shall be computed by multiplying the mass amount of emissions (TPY), for each of the six greenhouse gases in the pollutant GHG, by the gas' associated global warming potential (GWP) published in Table A-1 to subpart A of 40 CFR Part 98 - Global Warming Potentials, and summing the resultant value for each to compute a TPY CO₂e.
3. (C) If federal legislation or a federal court stays, invalidates, delays the effective date, or otherwise renders unenforceable by the EPA, in whole or in part, the EPA's tailoring rule (75 FR 31514, June 3, 2010), endangerment finding (74 FR 66496, December 15, 2009), or light-duty vehicle greenhouse gas emission standard (75 FR 25686, May 7, 2010), this definition shall be enforceable only to the extent that it is enforceable by the EPA.

"Traditional NSR process" means a process under which the evaluation of requirements applicable under NSR is performed independently of the determination of procedural and compliance requirements under the Part 70 source (Title V) operating permit program. This process is required for facilities that have not yet received a Part 70 source operating permit, but it may also be used (as an alternative to the enhanced NSR process) for facilities that have already received a Part 70 source operating permit. Under the traditional NSR process, the EPA has an opportunity to review a draft construction permit during the 30-day public review period. This process is independent of the subsequent application, review, and issuance process for the source's initial or modified Part 70 source operating permit that includes a 30-day public review period and a separate 45-day EPA review period, as described in OAC 252:100-8-8 and OAC 252:4-7.

"Trivial activities" means any individual or combination of air emissions units that are considered inconsequential and are on a list approved by the Administrator and contained in Appendix J.

"Unit" means, for purposes of Title IV, a fossil fuel-fired combustion device.

Added at 11 Ok Reg 977, eff 1-14-94 (emergency)

Added at 11 Ok Reg 2031, eff 5-26-94

Added at 12 Ok Reg 733, eff 1-5-95 (emergency)

Amended at 12 Ok Reg 1609, eff 7-1-95

Amended at 14 Ok Reg 1029, eff 1-16-97 (emergency)

Amended at 14 Ok Reg 1602, eff 6-2-97

Amended at 15 Ok Reg 2590, eff 6-25-98

Amended at 18 Ok Reg 1455, eff 6-1-01

Amended at 20 Ok Reg 1119, eff 6-1-03

Amended at 22 Ok Reg 1111, eff 6-15-05

Amended at 23 Ok Reg 1699, eff 6-15-06

Amended at 26 Ok Reg 1146, eff 7-1-09

Amended at 28 Ok Reg 443, eff 12-27-10 (emergency)

Amended at 28 Ok Reg 1179, eff 7-1-11

Amended at 29 Ok Reg 605, eff 7-1-12

Amended at 34 Ok Reg 1154, eff 9-15-17

Amended at 38 Ok Reg 1768, eff 9-15-21

Amended at 42 Ok Reg, Number 20, effective 9-15-25