Results for “Title V threshold”

RegulationTitle V — Title V Operating Permits40 CFR Parts 70 and 71. Operating permits that consolidate a source's applicable requirements.
ResourceTitle V operating permits: what they requireWho needs a Title V permit, what goes in it, and the monitoring, reporting, and certification obligations that follow.
ToolApplicability CheckerScreen NSPS, NESHAP, Title V, NSR, PSD, and state requirements.
StateAlaska air permitsAlaska Department of Environmental Conservation (DEC). Alaska DEC's Air Permit Program issues construction permits (major sources), minor source specific permits, general permits for common source types, Owner Requested Limits (ORL), Pre-Approved Emission Limits (PAEL), and Title V operating permits under 18 AAC 50 and AS 46.14.
StateMaine air permitsMaine Department of Environmental Protection (DEP). Maine issues air emission licenses. Minor sources and new source review (new equipment or modifications) are licensed under Chapter 115; major sources also need a Part 70 (Title V) license under Chapter 140. All of Maine is in the Ozone Transport Region, which lowers the VOC major source threshold (see the permit entries). New sources and minor and major modifications require a BACT analysis. General permits cover rock crushers and concrete batch plants.
StateNew Hampshire air permitsNew Hampshire Department of Environmental Services (NHDES). NHDES is the sole permitting authority statewide (no local air agencies). New or modified sources above the device/source thresholds in Env-A 600 need a Temporary Permit (construction, up to 18 months), followed by a State Permit to Operate (up to 5 years) or a Title V Operating Permit (5 years). Alternatives include General State Permits for emergency engines and Permit-by-Notification for rock crushers. Although New Hampshire is in attainment for ozone, it is in the Northeast Ozone Transport Region, so nonattainment NSR applies to major NOx and VOC sources (Env-A 618); PSD is under Env-A 619.
StateNew York air permitsNew York State Department of Environmental Conservation (NYSDEC). NYSDEC issues air permits and registrations under 6 NYCRR Part 201: Air Facility Registrations (Subpart 201-4) for smaller non-major facilities, State Facility Permits (Subpart 201-5) for larger non-major facilities using enforceable limits, and Title V Facility Permits (Subpart 201-6) for major and Acid Rain sources. Major projects need nonattainment NSR under Part 231 or federal PSD under 40 CFR 52.21. Major source thresholds vary by location: the New York City metropolitan severe ozone nonattainment area has the lowest NOx/VOC thresholds. Permit processing follows the Uniform Procedures Act (Part 621). EPA Region 2 is the permitting authority in the eight Tribal Nations.
StateRhode Island air permitsRhode Island Department of Environmental Management (DEM). RI DEM's Office of Air Resources issues preconstruction permits under Air Pollution Control Regulation No. 9 (250-RICR-120-05-9): minor source permits (with exemptions, general permits, temporary permits, and expedited processing), major source permits in nonattainment areas, and PSD permits in attainment areas. Operating permits for major sources are issued under Regulation No. 29 (250-RICR-120-05-29), with fees under Regulation No. 28. Rhode Island's VOC and NOx major source threshold under Regulation 29 is lower than the federal default (see the Title V entry). There are no local air agencies.
StateNew Jersey air permitsNew Jersey Department of Environmental Protection (NJDEP). NJDEP issues all air permits in New Jersey: preconstruction permits, PSD, nonattainment NSR, and Title V. Minor facilities need a preconstruction permit and operating certificate under N.J.A.C. 7:27-8 for any 'significant source', as listed in 7:27-8.2(c). A facility gets this either by registering online for a general permit, with immediate authorization to construct, or through case-by-case review using the RADIUS application software. Major facilities need a Title V operating permit under N.J.A.C. 7:27-22, either as a General Operating Permit (GOP) or case by case. New Jersey is in the Ozone Transport Region, which lowers major source thresholds (see the Nonattainment NSR entry). There are no local air permitting agencies.
StateConnecticut air permitsConnecticut Department of Energy and Environmental Protection (DEEP). Connecticut DEEP issues equipment-specific New Source Review permits under RCSA § 22a-174-3a, with permit-by-rule alternatives for certain equipment (§§ 22a-174-3b, -3c, -3d) and premises-wide Title V operating permits under § 22a-174-33. Facilities can stay below Title V with emissions caps under §§ 22a-174-33a and -33b, which replaced the expired General Permit to Limit Potential to Emit. Southwest Connecticut was reclassified to severe nonattainment for the 2008 ozone standard, lowering major source thresholds for NOx and VOC there.
StateColorado air permitsColorado Department of Public Health and Environment (CDPHE). Colorado uses a two-step system: sources report emissions on an Air Pollutant Emission Notice (APEN) above APEN thresholds, and need a construction permit above facility-wide permit thresholds (Regulation 3, Parts A and B). Lower thresholds apply for VOC and NOx in the Denver Metro/North Front Range ozone nonattainment area. General permits cover common oil and gas equipment, engines, and land development. Major sources need a Title V operating permit (Regulation 3, Part C) and PSD/NNSR review (Regulation 3, Part D). Since June 30, 2026, APENs and construction permit applications must be filed through the online submission tool, and applications require an Environmental Justice Summary.
StateWest Virginia air permitsWest Virginia Department of Environmental Protection (WVDEP). WVDEP's Division of Air Quality issues construction, modification, relocation, and temporary permits under 45CSR13 for stationary sources above the rule's thresholds, plus Class I and Class II general permit registrations (filed through the Electronic Submission System), PSD permits (45CSR14), nonattainment NSR permits (45CSR19), and Title V operating permits (45CSR30). Fees are under 45CSR22. A Permit Determination request confirms whether a permit is needed. West Virginia has extensive oil and gas general permits: G70-E for well sites and G35-E for compressor and dehydration facilities. There are no local air agencies.
StateDelaware air permitsDelaware Department of Natural Resources and Environmental Control (DNREC). In Delaware, any equipment that emits or controls air contaminants needs DNREC approval before construction or operation under 7 DE Admin. Code 1102, unless exempt or eligible for registration. Sources are classified as natural minor, synthetic minor, or major. Major sources are subject to NSR/PSD (Regulation 1125) and Title V (Regulation 1130). Major source thresholds for VOC and NOx are lower in New Castle and Kent counties than in Sussex County.
StateKansas air permitsKansas Department of Health and Environment (KDHE). Kansas requires a state construction permit (K.A.R. 28-19-300(a)) or, below permit thresholds, a construction approval (28-19-300(b)) before beginning actual construction or modification. Operating permits are Class I (Kansas's Title V permit) or Class II (federally enforceable limits, including permits-by-rule). PSD is implemented under K.A.R. 28-19-350, adopting portions of 40 CFR 52.21. All applications go through KEIMS.
StateTexas air permitsTexas Commission on Environmental Quality (TCEQ). TCEQ authorizes new and modified air emission sources through a tiered system under New Source Review (NSR): de minimis, permits by rule (PBR), standard permits, and case-by-case NSR permits, with federal PSD and nonattainment review for major sources. Major sites also need a federal operating permit (Title V), issued as a site operating permit (SOP) or general operating permit (GOP).
StateWisconsin air permitsWisconsin Department of Natural Resources (DNR). Wisconsin DNR requires a construction permit before anyone builds, reconstructs, modifies, relocates or replaces an air pollution source. Minor sources are covered by NR 406, PSD by NR 405, and nonattainment NSR by NR 408. Facilities also need an operation permit (NR 407) unless they are exempt. The construction exemptions in NR 406.04 are judged project by project. The operation exemptions in NR 407.03 are judged for the whole facility. Streamlined options include registration operation permits Types A, B, C and G, and general permits for hot mix asphalt plants and rock crushing. Major sources need a Title V (Part 70) permit. Non-Title V operation permits issued after December 2015 generally do not expire. Fees are set in NR 410. Parts of southeastern Wisconsin are ozone nonattainment areas.
StateVermont air permitsVermont Agency of Natural Resources, Department of Environmental Conservation (DEC). Vermont DEC's Air Quality & Climate Division issues a Permit to Construct before construction of a new or modified air contaminant source (sources listed in §5-401 of the Vermont Air Pollution Control Regulations; Subchapter V), and a Permit to Operate for facilities above the potential-emissions level in Subchapter X (see the Permit to Operate entry), which incorporates Title V. Most permits are combined Permits to Construct and Operate. Vermont implements federal NSR/PSD and Title V within its state program, so the state permit is the only construction or operating permit needed. DEC publishes source category guidance (boilers, engines, evaporators, breweries, quarries, asphalt, coating, and others). There are no local air agencies.
StateWashington air permitsWashington State Department of Ecology. Washington splits air permitting among Ecology, seven local clean air agencies, EFSEC (large energy facilities), and EPA Region 10 (Indian Country and the Outer Continental Shelf). Ecology issues permits in counties without a local agency and for pulp mills, aluminum mills, and Hanford statewide, and it issues all PSD permits not under EFSEC, EPA, or tribal jurisdiction. Before installing or modifying a source, a business needs a Notice of Construction (NOC) order of approval unless exempt under WAC 173-400-110; toxic air pollutant emitters may need a health impact assessment (WAC 173-460). General orders cover common source types. Major sources need an Air Operating Permit (Title V, WAC 173-401). Most permitted industrial sources must also join the registration program and pay annual fees.
StateIdaho air permitsIdaho Department of Environmental Quality (DEQ). Idaho DEQ requires a Permit to Construct (PTC) before constructing or modifying sources that emit or may emit air pollutants, unless exempt. Rock crushers and certain dairies may use a Permit by Rule registration instead. General permits cover concrete batch plants, hot mix asphalt plants, and automotive coating. Tier I operating permits are Idaho's Title V permits (DEQ is the EPA-delegated agency); Tier II operating permits set facility caps, synthetic minor limits, or other limits. Rules are in IDAPA 58.01.01.
StateMontana air permitsMontana Department of Environmental Quality (DEQ). Montana DEQ issues Montana Air Quality Permits (MAQPs, preconstruction permits under ARM 17.8 Subchapter 7), Title V Operating Permits (ARM 17.8 Subchapter 12), and registrations for specific portable or well-site source types (oil and gas well facilities, nonmetallic mineral crushers/screeners, concrete batch plants, and asphalt plants). Per DEQ, MAQPs do not expire. PSD applies to major stationary sources under ARM 17.8 Subchapter 8.
StateNorth Dakota air permitsNorth Dakota Department of Environmental Quality (NDDEQ). North Dakota uses a two-step system: a Permit to Construct (PTC) before building or modifying a source in a designated category (NDAC 33.1-15-14), then a Permit to Operate (PTO) issued after DEQ inspects the facility. Sources are classed as true minor, synthetic minor (federally enforceable limits), Title V major, and PSD major. North Dakota is in attainment for all criteria pollutants, so major preconstruction review is PSD. Oil and gas production facilities use a General Permit (GP-OG) filed through CERIS-ND. Applications and reports are filed electronically through CERIS-ND. Indian country is outside the GP-OG and NDDEQ's jurisdiction.
StateMinnesota air permitsMinnesota Pollution Control Agency (MPCA). In Minnesota a facility needs an air permit when its potential to emit exceeds a permitting threshold, unless it is an insignificant facility or a conditionally exempt source. State permits for minor sources include one-page registration permits, capped emission permits, a state general permit, and individual state total facility permits. Federal permits are Part 70 individual permits and a Part 70 manufacturing general permit. Rules are in Minn. R. ch. 7007 (permits) and ch. 7008 (conditionally exempt sources).
StateIllinois air permitsIllinois Environmental Protection Agency (Illinois EPA). Illinois EPA requires a construction permit before building an emission unit or air pollution control equipment unless an exemption applies, and an operating permit to operate. Operating permit options depend on size: Registration of Smaller Sources (ROSS) for very small sources, lifetime state operating permits, general permits for true minor sources, FESOPs for synthetic minors, and CAAPP (Illinois's Title V program) for major sources. PSD and nonattainment NSR apply to major projects.
StateMichigan air permitsMichigan Department of Environment, Great Lakes, and Energy (EGLE). Michigan requires a Permit to Install (PTI) before installing, relocating, modifying, or reconstructing equipment that emits air contaminants (R 336.1201), unless an exemption in Part 2 applies. PTIs are free and do not expire. General PTIs exist for a few categories. Major sources need a Renewable Operating Permit (ROP), Michigan's Title V program (R 336.1210-1218). Part 18 (PSD) mirrors 40 CFR 52.21 and Part 19 covers nonattainment NSR.
StateMassachusetts air permitsMassachusetts Department of Environmental Protection (MassDEP). MassDEP requires a Plan Approval before constructing or modifying facilities that emit air contaminants (310 CMR 7.02), as a Limited Plan Application (LPA) or Comprehensive Plan Application (CPA) depending on size, unless exempt. Alternatives include Permit-by-Rule (310 CMR 7.03) and the mandatory Environmental Results Program (ERP, 310 CMR 7.26) for certain sectors. All new units must meet BACT (or LAER where nonattainment NSR applies). Major sources need a Title V Operating Permit under 310 CMR 7.00 Appendix C. MassDEP administers PSD by EPA delegation under 40 CFR 52.21.
StateOregon air permitsOregon Department of Environmental Quality (DEQ). Oregon DEQ issues Air Contaminant Discharge Permits (ACDPs) for minor sources and for new major sources/major modifications, plus Title V operating permits for major sources. Which ACDP applies depends on the source category in the Table of Activities and Sources (OAR 340-216-8010, Table 1): Part A sources qualify for a Basic ACDP, Part B for a General, Simple, or Standard ACDP, and Part C must get a Standard ACDP. Permits carry Plant Site Emission Limits (PSELs) compared against Significant Emission Rates (SERs). Many sources need a Notice of Construction even without a permit (OAR Division 210), and every permit needs a Land Use Compatibility Statement. Cleaner Air Oregon adds facility risk assessment for toxic air contaminants. LRAPA permits in Lane County; EPA Region 10 permits in Indian Country and on the Outer Continental Shelf.
StateNevada air permitsNevada Division of Environmental Protection (NDEP). NDEP's Bureau of Air Pollution Control issues Air Quality Operating Permits (AQOPs) statewide except in Clark County, Washoe County, and Indian Country (EPA Region 9). Nevada uses a class system: Class I for major sources (including Title V, PSD, and major MACT sources) and Class II for smaller sources above listed pollutant levels, plus Class II general permits, Surface Area Disturbance (SAD) permits, Change of Location Approvals (COLAs) for portable equipment, and Nevada Mercury Control Program permits for thermal units that emit mercury. New Class I sources obtain an Operating Permit to Construct (OPTC).
StateWyoming air permitsWyoming Department of Environmental Quality (DEQ). Wyoming DEQ's Air Quality Division requires a construction permit before construction or modification of a source begins (WAQSR Chapter 6, Section 2(a)(i)). DEQ says Chapter 6 has no de minimis emission levels; instead, Section 2(k) lists specific activities that do not need approval. Oil and gas production sites that use Best Available Control Technology (BACT) may begin construction without prior authorization under W.S. 35-11-801(e), and DEQ's Oil and Gas Production Facilities Permitting Guidance defines that BACT. Major sources need PSD (Chapter 6, Section 4), nonattainment NSR (Chapter 6, Section 13; Upper Green River Basin ozone area), and a Title V operating permit (Chapter 6, Section 3). Applications are submitted through the IMPACT portal, and drafts are posted on OpenAir. EPA Region 8 is the permitting authority in Indian Country.
StateSouth Dakota air permitsSouth Dakota Department of Agriculture and Natural Resources (DANR). South Dakota DANR's Air Quality Program issues minor source operating permits (ARSD 74:36:04), Title V (Part 70) operating permits, general permits for portable and stationary sources (asphalt plants, rock crushers, concrete plants, grain elevators), and PSD pre-construction permits (ARSD 74:36:09, adopting 40 CFR 52.21). South Dakota is in attainment, so nonattainment NSR (ARSD 74:36:10) does not currently apply. The Rapid City area has PM10 Natural Events Action Plan requirements, including general permits for construction and continuous activities on state property. EPA Region 8 is the permitting authority in Indian Country.
StateIowa air permitsIowa Department of Natural Resources (DNR). Iowa requires an air construction permit before constructing or modifying equipment or control equipment, except where an exemption applies (including the small unit exemption in 567 IAC 22.1(2)"w"). Complex reviews cover PSD, major source nonattainment permitting, SIP maintenance areas, avoidance limits, and greenfield facilities. Iowa's Operating Permit Program issues Title V permits and Small Source operating permits. Since January 1, 2023, construction permit applications are accepted only through Iowa EASY Air.
StateIndiana air permitsIndiana Department of Environmental Management (IDEM). IDEM's Office of Air Quality ties permit level to a source's potential to emit (PTE): exemptions below registration levels, registrations, Minor Source Operating Permits (MSOP) for natural minors, FESOPs for synthetic minors, and Part 70 (Title V) permits for major sources. New construction and modifications get the matching level of NSR: minor NSR (construction permits), PSD (326 IAC 2-2), or nonattainment emission offset review (326 IAC 2-3), usually combined with the operating permit.
StateOhio air permitsOhio Environmental Protection Agency (Ohio EPA). Ohio EPA DAPC issues air permits through its Central Office and district offices plus eight local air agencies that serve as Ohio EPA's representatives for their counties. Non-Title V facilities get a Permit-to-Install and Operate (PTIO); Title V facilities get a Permit-to-Install (PTI) for construction plus a Title V operating permit (OAC 3745-77). Lower tiers include permanent and discretionary exemptions (OAC 3745-31-03), the de minimis exemption (OAC 3745-15-05), permits-by-rule (OAC 3745-31-30), and general permits (OAC 3745-31-29), including oil and gas well-site and natural gas compressor station general permits. Best Available Technology (BAT) applies to new sources. Major sources go through attainment-area review (PSD, OAC 3745-31-10 to -20) or nonattainment review (OAC 3745-31-21 to -27).
StatePennsylvania air permitsPennsylvania Department of Environmental Protection (DEP). Pennsylvania DEP requires a plan approval before constructing, modifying, or reactivating a source or installing an air cleaning device (25 Pa. Code Chapter 127, Subchapter B), and an operating permit (State-Only or Title V, Subchapter F and Title V provisions) to operate. Many sources are exempt from plan approval under 25 Pa. Code 127.14 and DEP's Air Quality Permit Exemptions list (275-2101-003), but plan approval exemptions do not automatically exempt a facility from operating permits. A Request for Determination (RFD) gets a case-by-case decision. General plan approvals/general operating permits (GP-1 to GP-24) cover common source types, including GP-5 and GP-5A for natural gas operations. Allegheny County and Philadelphia run their own programs. Annual operating permit maintenance fees apply (2026-2030: $10,000 Title V, $5,000 synthetic minor, $2,500 natural minor).
StateCalifornia air permitsCalifornia Air Resources Board (CARB) with 35 local air districts. California's 35 local air districts are the primary agencies that review and issue stationary source air permits. CARB plays an oversight role and generally does not issue preconstruction or operating permits (Cal. Health & Safety Code §§ 39620, 41500). Districts issue an Authority to Construct (ATC) before building or modifying equipment and a Permit to Operate (PTO) once ATC requirements are met; they also run New Source Review and EPA-approved Title V programs. CARB directly regulates oil and gas methane emissions through a statewide regulation enforced with districts.
StateUtah air permitsUtah Department of Environmental Quality (DEQ). Utah DAQ requires an Approval Order (AO) before starting construction or operation of emitting equipment, obtained by filing a Notice of Intent under R307-401 (New Source Review section). Small sources may be exempt (R307-401-9), and permits by rule are available for listed emission units (R307-431) and source categories (R307-432). Oil and gas sources on state-jurisdiction lands register once under R307-505 and follow the R307-500 series oil and gas rules. Major sources need nonattainment/maintenance area review (R307-403) or PSD (R307-405) and a Title V operating permit (R307-415). EPA Region 8 is the permitting authority in Indian Country.
StateNebraska air permitsNebraska Department of Water, Energy, and Environment (DWEE). Nebraska's air program (formerly the Nebraska Department of Environment and Energy, NDEE; now the Department of Water, Energy, and Environment, DWEE) issues state construction permits (Title 129, Chapter 3), federal PSD/NSR construction permits (Chapter 4), general construction and operating permits (Chapter 7), and Class I (Title V) and Class II (state minor) operating permits (Chapter 6). DWEE states Nebraska is in attainment for all ambient air quality standards. Lincoln-Lancaster County and Omaha run local programs; EPA Region 7 permits in Indian country.
StateKentucky air permitsKentucky Energy and Environment Cabinet. Kentucky DAQ requires registration or permit approval before construction begins. Very small sources may need nothing; others register (401 KAR 52:070), get a minor/state-origin permit (52:040), a conditional major/FESOP (52:030), or a Title V permit (52:020). PSD applies to certain major projects in attainment areas.
StateVirginia air permitsVirginia Department of Environmental Quality (DEQ). Virginia DEQ issues air permits under 9VAC5-80 (Permits for Stationary Sources). New sources and projects above the exemption levels in 9VAC5-80-1105 need a minor NSR permit (Article 6), or a state major permit for Title V major facilities that are not PSD. Major sources need PSD (Article 8) in attainment areas or nonattainment NSR (Article 9; Northern Virginia ozone area). Case-by-case MACT is under Article 7. State Operating Permits (Article 5) are elective and usually create synthetic minor limits. Title V permits are under Article 1. General permits cover nonmetallic mineral processing, biomass pilot test facilities, voluntary demand response generators, and emergency generators. There are no local air permitting agencies.
StateMaryland air permitsMaryland Department of the Environment (MDE). Maryland requires an Air Quality Permit to Construct before installing, modifying, replacing, or moving equipment that emits air pollutants, unless exempt under COMAR 26.11.02.10. Common equipment can use General Permits to Construct. Sources with potential to significantly affect air quality need a State Permit to Operate; major sources need a Part 70 (Title V) permit. Major projects require New Source Review (nonattainment) or PSD approval.
StateArizona air permitsArizona Department of Environmental Quality (ADEQ). ADEQ issues Class I (major/Title V) and Class II individual permits, general permits, and registrations everywhere except Maricopa, Pima, and Pinal counties, which run their own permitting, inspection, and enforcement programs. EPA Region 9 permits on most tribal lands.
StateNew Mexico air permitsNew Mexico Environment Department (NMED). NMED's Air Quality Bureau regulates stationary sources statewide except Albuquerque/Bernalillo County. Depending on emissions, a source may need no permit, a Notice of Intent (20.2.73 NMAC), a minor source construction permit or general construction permit (20.2.72 NMAC), a PSD permit (20.2.74 NMAC), a nonattainment permit (20.2.79 NMAC), and/or a Title V operating permit (20.2.70 NMAC). Most applications use the Universal Application Form and the AQB ePermitting Portal.
StateArkansas air permitsArkansas Department of Energy and Environment, Division of Environmental Quality (DEQ). Arkansas DEQ issues registrations, minor source permits, general permits, and Title V permits under APC&EC Rules 18, 19, and 26. Permits must be obtained before construction begins. Minor source permits do not expire; general and Title V permits have five-year terms.
StateTennessee air permitsTennessee Department of Environment and Conservation (TDEC). TDEC's Division of Air Pollution Control requires a construction permit before building or modifying an air contaminant source unless it is exempt (Rule 1200-03-09), followed by an operating permit: true minor, conditional major (limits to stay below Title V), or Title V. Combined construction/operating permits are available. General permits (via Notice of Intent and Notice of Coverage) and Permits by Rule (via NOI and Notice of Authorization, Rule 1200-03-09-.07) cover listed categories. Major sources need PSD (BACT) in attainment areas or nonattainment NSR (LAER). Four local programs (Chattanooga-Hamilton, Knox, Memphis-Shelby, Nashville-Davidson) permit in their areas. Non-confidential submittals can be emailed to Air.Pollution.Control@tn.gov.
StateNorth Carolina air permitsNorth Carolina Department of Environmental Quality (NC DEQ). NC DAQ issues air permits statewide, with local programs in Forsyth County, Mecklenburg County, and Asheville/Buncombe County. Options by size: permit exemption for very small facilities (15A NCAC 02Q .0102), registration for low-emitting facilities (02D .0202), general permits for listed source types, Small and Synthetic Minor permits (02Q .0300, .0315), Title V permits for major sources (02Q .0500), and PSD/nonattainment NSR for major new sources and modifications. Non-Title V permits run eight years; Title V permits five years. A zoning consistency determination is needed for a complete application.
StateSouth Carolina air permitsSouth Carolina Department of Environmental Services (SCDES). SCDES (formerly SC DHEC's environmental programs) issues air construction permits before construction, alteration, or addition of a stationary source, and operating permits afterward, under S.C. Regulation 61-62.1 Section II. Lower tiers include construction permit exemptions (61-62.1 Section II(B) and the BAQ exemptions list), registration permits, and general permits (general construction, general state operating, and general conditional major operating permits) for sectors such as concrete plants, asphalt plants, nonmetallic mineral processing, and fuel combustion. Conditional major (synthetic minor) permits take limits to avoid PSD (61-62.1 Section II.E) and Title V (Section II.G). Title V is under Regulation 61-62.70. Non-Title V applications must be filed through ePermitting (paper not accepted after February 1, 2025). There are no local air agencies.
StateDistrict of Columbia air permitsDC Department of Energy and Environment (DOEE). Most stationary sources of air pollution in the District must obtain permits from DOEE's Air Quality Division. Minor sources (such as gas stations, dry cleaners, auto body shops, generator sites, and small printers) generally need a Chapter 2 pre-construction review permit and then a Chapter 2 operating permit. Major sources need pre-construction review, NSR permits under 20 DCMR § 204 for new major sources or emission-increasing modifications, and Title V operating permits under 20 DCMR Chapter 3. Source category permits offer a fast standardized path for emergency engines and temporary portable plants.
StateLouisiana air permitsLouisiana Department of Environmental Quality (LDEQ). In Louisiana any source that emits or could emit an air contaminant generally needs an air permit unless an exception applies. Very small facilities are excused by statute (Act 547) or can use the small source exemption (LAC 33:III.501.B.4); insignificant activities are listed in LAC 33:III.501.B.5. Other non-Part 70 facilities get state minor source permits under LAC 33:III.503, or coverage under minor source general permits such as the one for crude oil and natural gas production. Major sources need Part 70 (Title V) permits under LAC 33:III.507, plus PSD or nonattainment NSR for major projects.
StateMississippi air permitsMississippi Department of Environmental Quality (MDEQ). Mississippi requires a Permit to Construct for new facilities unless a facility-wide exclusion under Rule 2.13 applies. Construction permits are PSD (major), PSD-avoidance (moderate sources taking limits), or minor. Operating permits are Title V (Chapter 6), Synthetic Minor Operating Permits, or State Operating Permits for listed significant minor source types; true minor sources need no operating permit. MDEQ charges no air permit application fees; only Title V facilities pay annual fees.
StateAlabama air permitsAlabama Department of Environmental Management (ADEM). ADEM's Air Division issues minor source construction permits, PSD and nonattainment NSR permits, Synthetic Minor Operating Permits (SMOP), and Title V Major Source Operating Permits (MSOP) statewide, except where Jefferson County and the City of Huntsville run local permit programs. ADEM has not established a list of exempt source types or sizes; the need for a permit is decided case by case.
StateGeorgia air permitsGeorgia Environmental Protection Division (EPD). Georgia EPD requires an air permit before beginning construction or modification that may cause air pollution, unless exempt (Rule 391-3-1-.03(1), (2), (6)). Minor and synthetic minor sources get SIP construction and operating permits; some categories can accept a permit-by-rule (which still requires a SIP permit). Major sources need PSD/112(g) construction permits and Title V (Part 70) permits filed through GEOS. Projects subject to Georgia's VOC or NOx RACT rules must always be permitted with public notice.
StateHawaii air permitsHawaii State Department of Health (DOH). Hawaii DOH's Clean Air Branch requires an Air Pollution Control Permit before constructing, reconstructing, modifying, or operating a stationary air pollution source or control equipment, except as provided in HAR 11-60.1-62 and 11-60.1-82. Permits are either Covered Source Permits (major sources and sources subject to federal NSPS, NESHAP, or PSD; Hawaii's Title V-equivalent program) or Noncovered Source Permits (all other sources). Both have initial, renewal, temporary, general, modification, and transfer actions. Agricultural burning permits are also issued.
StateFlorida air permitsFlorida Department of Environmental Protection (DEP). Florida DEP requires an air construction permit before building or modifying non-exempt emissions units, and an air operation permit to operate. Many small sources qualify for categorical, conditional, or generic exemptions (Rule 62-210.300(3), F.A.C.) or for one of the air general permits (Rule 62-210.310). Minor construction permits are processed by DEP districts or approved local programs; PSD, nonattainment NSR, and power plant permits are processed by the Division. Operation permits are state-only (natural or synthetic minor), federally enforceable state operation permits (FESOP), or Title V (Chapter 62-213).
ResourcePermit Condition Tracker (template)Turn each permit condition into an owned, dated obligation with evidence.