Gas line permits in Texas
Last updated September 13, 2026
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A plain-English starting point for plumbing contractors. This is general Texas guidance — fees, forms, and timelines are set by each city.
Short answer
New or extended gas piping generally needs a permit in Texas cities, pulled by a TSBPE-licensed Responsible Master Plumber — gas piping is plumbing under Texas law. Before gas service comes back, the city tests and releases the line: Dallas requires a 3 psig pressure test held at least 15 minutes and witnessed by a City inspector before Atmos Energy restores service.
The general picture
Gas work in Texas is plumbing work, so a licensed master plumber pulls the permit, and the city controls when gas flows again. In the Dallas–Fort Worth cities we've checked, the key step is the test and release: Dallas requires a pressure test witnessed by a City inspector before Atmos Energy restores service, and when gas service has been lost in Arlington, the City releases it to Atmos only after a permit and a passed inspection. See the verified notes for Dallas and Arlington.
Typically needs a permit
Adding or extending gas piping to a range, dryer, outdoor kitchen, fireplace, pool heater, or generator, and altering existing piping. Gas service stays off until the city approves the piping.
Usually doesn't (general norm)
- Relighting a pilot or servicing an appliance without touching the gas piping
Documents & plans generally required
- Plumbing (gas) permit application
- Responsible Master Plumber license number and city registration
- Piping layout with pipe sizes, lengths, and material
- Input rating for every appliance on the system
- Pipe sizing for the total connected load
Common reasons gas line applications get bounced
Code-rooted patterns across Texas — not a city-specific rejection rate.
- Pressure test not holding at the required pressure and duration
- Pipe sized for the new appliance but not the whole system
- Piping covered or backfilled before inspection
- Gas turned on before the city's release
- Plumber not registered with the city where registration is required
The inspection sequence
A typical order — the number of stops and exact sequence vary by jurisdiction and scope.
- 1Rough inspection and pressure test before the piping is covered
- 2In Dallas, a 3 psig test held at least 15 minutes, witnessed by a City plumbing inspector
- 3City release to the gas utility, which restores or connects service
Licensing — who can pull it
Gas piping in Texas is plumbing work done by a TSBPE-licensed plumber, with a Responsible Master Plumber pulling the permit. Propane (LP-gas) work is regulated by the Railroad Commission of Texas; plumbers and ACR contractors can register for an exemption from its license.
How this works in your Texas city
Cities marked have verified local data — portal, fee schedule, adopted code edition, and local permit notes sourced from public city and county documents. Every city page links to its official building department.
Frequently asked questions
Do I need a permit to run a gas line in Texas?
Generally yes. Gas piping is plumbing under Texas law, and Dallas, Fort Worth, and Plano require permits for plumbing work; Dallas also publishes its gas test procedure.
How is a gas line tested in Dallas?
At 3 psig for at least 15 minutes, witnessed by a City plumbing inspector. After the City's release, Atmos Energy restores or connects service.
What about propane?
Propane (LP-gas) systems fall under the Railroad Commission of Texas. Plumbers and ACR contractors can register with the Commission for an exemption from its LP-gas license.
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