TCEQ Air Permitting 101: the plain-English guide.
If you build or change anything in Texas that puts emissions into the air, TCEQ probably needs to authorize it first. This guide explains who needs an air permit, the kinds of permits that exist, how the process works, and how long it takes — without the regulatory shorthand.
Do I need an air permit?
The rule is broad: anyone who plans to construct a new facility — or modify an existing one — that emits air contaminants must get authorization from TCEQ before doing the work. "Facility" covers a lot, from a concrete batch plant to a power plant to a boiler bolted onto a building you already own.
Which authorization you need comes down to two things: the type of facility and how much it emits. A small, well-understood operation might qualify for a light-touch registration. A large industrial source goes through a full, case-by-case review. TCEQ organizes these from lightest to heaviest, and most projects find their place somewhere on that ladder.
There's one exception at the very bottom. Sources that meet the de minimiscriteria — set in 30 TAC §116.119(a) — emit so little that they need no registration or authorization at all before construction. Everything above that line needs something. (The figures throughout this guide trace to TCEQ's official Air Permitting Fact Sheet, RG-616 ↗, revised January 2026.)
Not sure whether a project or a site is already authorized? You can look up any TCEQ air permit's status by company, county, or permit number before you start digging through the rules.
The permit landscape, mapped.
TCEQ's Air Permits Division runs two programs. One authorizes you to build; the other governs how a major site operates. Almost everything in air permitting fits into this picture.
New Source Review
Before you buildThe construction side. NSR is the ladder of authorizations you climb before you break ground on a new or modified source — from a simple registration up to a full case-by-case major-source review.
Title V Operating Permits
To keep operatingThe operating side. A separate federal permit that major sites must hold to run. It rolls up every requirement that already applies and sets the monitoring, recordkeeping, and annual compliance certification.
Emissions so low the source needs no registration or authorization at all. The floor of the whole system.
A standardized authorization for sources under set emission thresholds (e.g., less than 25 tpy of VOC or 250 tpy of CO). 108 individual PBRs can be claimed or registered — some require registration, some don't.
A pre-set permit for well-understood facility types — concrete batch plants, rock crushers, asphalt plants, boilers. Meet fixed conditions instead of a custom review. Some require public notice.
The case-by-case construction permit for sources that don't fit a PBR or standard permit. Includes technical review, best-available-control-technology analysis, and — where required — public notice.
A variant of NSR that caps a site's total emissions and lets the operator manage how it stays under that cap. Same core review requirements as NSR.
Federal major-source review. PSD adds dispersion modeling for large sources and greenhouse-gas emitters; Nonattainment review applies in areas that don't meet federal air standards and requires emission offsets.
The parallel program. Once a site is major — potential emissions of 100 tpy of any regulated pollutant, 10 tpy of a single HAP, or 25 tpy of combined HAPs — this federal operating permit governs how it runs. A separate application, not a rung on the construction ladder.
Read the ladder like a decision tree: start at the top and take the firstauthorization the source qualifies for — a project only drops to a heavier rung when it can't meet the one above, and a site can move back up by reducing emissions. Title V sits apart because it isn't a rung at all: it's the parallel operatingprogram, triggered by the site's total size rather than any one project, so a major industrial site typically holds an NSR authorization anda Title V permit.
NSR vs. Title V, in one breath.
New Source Review is permission to build.It's required before construction starts on a new or modified source, and it sets the emission limits and controls that project must meet. Most of the authorizations above — PBR, standard permits, case-by-case NSR, PSD — live inside this program.
Title V is permission to operate.It's a federal operating permit for major sites— generally those with the potential to emit 100 tons per year of any regulated pollutant, or 10/25 tpy of hazardous air pollutants — that pulls every applicable requirement into one document and defines how the site monitors, records, and certifies its compliance each year. Filing for Title V doesn't hold up your start-up the way a construction permit does.
The short version: NSR is about the project; Title V is about the site. A large facility typically needs an NSR authorization to build each project and a Title V permit to keep the whole site running.
The permit types you'll actually see.
The same authorizations from the map, as a reference you can scan. These are the codes that show up on a TCEQ record.
Permit by Rule
The lightest-touch authorization — a standardized registration for sources whose emissions stay under set thresholds. Common for small or routine operations. 108 individual PBRs exist under 30 TAC Ch. 106.
Standard Permit
A streamlined permit for well-understood facility types — concrete batch plants, rock crushers, asphalt plants, cotton gins — that meet fixed conditions instead of a custom review.
New Source Review
The case-by-case construction permit. The core authorization most industrial facilities need before building, with technical review and best-available-control-technology analysis.
Prevention of Significant Deterioration
Federal major-source review for large facilities and greenhouse-gas emitters. Adds dispersion modeling on top of standard NSR — think data centers and power plants.
Flexible Permit
An NSR permit that caps a site's total emissions and lets the operator decide how to stay under the cap. Same review requirements as a standard NSR permit.
Federal Operating Permit
The permit to operate a major site. It consolidates the site's requirements and sets the monitoring, recordkeeping, and annual compliance certification under 30 TAC Ch. 122.
What a TCEQ air permit costs.
Application fees scale with the authorization — from a flat registration fee to a percentage of the project itself.
| Authorization | Application fee |
|---|---|
| Permit by Rule (registration) | $100–$450 |
| Standard Permit | $900 flat |
| Case-by-case NSR (incl. PSD / flexible) | % of capital cost, up to $75,000 |
The pattern: a PBR registration runs $100 for qualifying small businesses and local governments, $450 for everyone else [30 TAC §106.50]. A standard permit is a flat $900 unless the specific standard permit sets its own fee. A case-by-case NSR permitis priced off the project's estimated capital cost — generally 0.3% (1.0% for PSD), with a minimum and a $75,000 cap [30 TAC §116.141]. Applicants who need speed can also pay a surcharge for expedited processing.
Two things the application fee is not. It's not the ongoing cost: sites also pay an annual air emissions fee(assessed per ton of pollution, adjusted yearly, and used to fund the Title V program) or an inspection fee — whichever is higher. And it's rarely the biggest line item: engineering, emissions modeling, and control equipment usually dwarf the fee itself. Current rates live on TCEQ's air permitting fees page ↗.
How long a TCEQ air permit takes.
TCEQ publishes target review time frames — measured from the date it receives a complete application to final action. These are goals, not guarantees, and public notice or a complex project can push them out.
| Authorization | Target review time |
|---|---|
| Permit by Rule | 45 days |
| Standard Permit — without public notice | 45 days |
| Standard Permit — with public notice | 150 days |
| New NSR permit | 285 days |
| NSR amendment | 315 days |
| NSR renewal | 270 days |
| Federal NSR — PSD / Nonattainment | 365 days |
| Title V — Site Operating Permit (new or renewal) | 365 days |
| Title V — new General Operating Permit | 120 days |
| Title V — GOP renewal | 210 days |
| Title V — GOP revision | 330 days |
A filed application reads pending until TCEQ takes final action, then flips to effective. Follow a pending application and watch it move through the pipeline in real time.
What happens inside those days — administrative review, technical review, and the two public notices (the NORI and the NAPD) — is mapped stage-by-stage in The permitting process. Worth knowing in 2026: under new rules, TCEQ now posts complete permit applications on its website, and public-notice signs must stay up through the entire comment period — details in TCEQ's public-participation overview ↗.
The rest of the guide.
This page is the overview. Each chapter below goes deep on one piece of TCEQ air permitting.
Do I need a permit?
Walk through emissions thresholds, the de minimis line, and how to tell which authorization a project needs.
Read the chapter air permit requirements2ReferencePermit types explained
PBR, Standard, NSR, PSD, Flexible, Title V — every authorization, what it covers, and who it's for.
Read the chapter tceq air permit types3Core conceptNSR vs. Title V
The construct-vs-operate distinction in full — when you need one, the other, or both.
Read the chapter new source review vs title v4Step by stepThe permitting process
From application to administrative review, technical review, public notice, and final issuance.
Read the chapter tceq air permit process5Staying compliantRenewals & deadlines
When permits come up for renewal, what triggers a renewal notice, and how to avoid missing one.
Read the chapter tceq air permit renewal6Decoding recordsRead a permit record
Make sense of permit numbers, CN and RN numbers, project types, and status codes on a TCEQ record.
Read the chapter how to read tceq permitAir permitting basics, answered.
Do I need an air permit from TCEQ?+−
If you plan to construct a new facility or modify an existing one that emits air contaminants, you generally need authorization from TCEQ before you build. The type depends on the facility and how much it emits. Very small sources that meet the de minimis criteria in 30 TAC §116.119(a) may need no registration or permit at all.
What are the types of TCEQ air permits?+−
In order of increasing emissions: de minimis (no authorization), Permit by Rule (PBR), Standard Permit, case-by-case New Source Review (NSR), Flexible Permit, and the major-source federal reviews — PSD and Nonattainment. Separately, major sites also need a Title V federal operating permit to operate.
What's the difference between NSR and Title V?+−
New Source Review authorizes you to build or modify a source before work begins. Title V is the federal operating permit that governs how a major site operates once it's running — consolidating its requirements and setting monitoring, recordkeeping, and annual compliance certification. A major site often needs both.
How long does a TCEQ air permit take?+−
TCEQ publishes target review time frames. PBRs and standard permits without public notice target 45 days; standard permits with public notice target 150 days; a new NSR permit targets 285 days; and federal NSR (PSD or Nonattainment) and Title V permits target 365 days. These are goals, not guarantees.
What is a permit by rule (PBR)?+−
A standardized authorization in 30 TAC Chapter 106 for sources whose emissions stay under set thresholds. There are 108 individual PBRs that can be claimed or registered. A facility must meet every requirement of both the specific PBR and the general rules; some PBRs require registration and others don't.
Know the rules. Now watch the permits.
You understand the system — let PermitPulse keep an eye on it for you. Follow any permit, company, county, or renewal deadline and get an alert within a day of the TCEQ update.
This guide summarizes publicly available TCEQ guidance for general informational purposes only — it is not legal, engineering, or professional advice. Rule citations and time frames are drawn from TCEQ's Air Permitting Fact Sheet (RG-616) and may change; always confirm requirements against the current TCEQ rules and the authoritative record before acting.