Underground Fire Line Plan Review

At Green Tag Engineering, we provide expert third-party Underground Fire Line Plan Reviews for commercial, residential, and industrial projects across Texas. Our thorough and code-compliant review process helps developers, fire protection contractors, and municipalities ensure safety, reduce risk, and speed up approvals.

Why Underground Fire Line Plan Reviews Matter

An underground fire line is the backbone of any fire protection system. It connects the public water supply to private fire sprinkler systems and hydrants, delivering the water needed to fight fires effectively. A properly reviewed and approved plan ensures:

  • Sufficient water flow and pressure
  • Proper pipe sizing and material
  • Accurate placement of valves, fittings, and hydrants
  • Compliance with local and national fire protection codes

Delays, rework, or code violations caused by improperly designed underground fire lines can be costly. That’s why many jurisdictions require an FPE certified third-party review before construction can begin.

two workers laying a underground water pipe

What We Review

Green Tag Engineering reviews your submitted underground fire line plans for:

Pipe size, routing, and depth

Thrust block and restraint design

Backflow prevention placement

Hydrant and valve locations

Connections to public and private systems

Code compliance (NFPA 24, NFPA 13, local amendments)

Accessibility and maintenance considerations

We provide detailed feedback, redlines (if needed), and approvals to get you that green tag easily and help you stay on schedule.

greentag workers reviewing a fireline plan

Benefits of Third-Party Plan Review

Working with Green Tag Engineering gives you a streamlined experience and peace of mind:

  • Faster turnaround than municipal departments
  • Expert guidance from certified and experienced fire protection engineers
  • Clear communication and efficient feedback
  • Reduced risk of costly delays and inspection failures
  • Approved by 60+ Texas jurisdictions

Jurisdictions We Serve

We are approved to conduct underground fire line plan reviews in over 60 cities and municipalities across Texas. Whether you’re working in San Angelo, McAllen, Mount Pleasant, or numerous other cities in between, we help you move your project forward with confidence.
View full list of jurisdictions we serve

a worker reviewing fire pipes

Who Needs This Service?

  • Contractors
    Get approved fast and focus on what you do best instead of all the bureaucracy
  • Jurisdictions & Cities
    Doing reviews in-house uses resources that could be better allocated elsewhere. Let GreenTag Engineering do the heavy lifting when it comes to plan reviews. We’ll ease workloads while ensuring high safety standards.
workers working on water pipes

Let’s Get Started

Green Tag Engineering is your trusted partner in underground fire line plan review. Send us your plans and our experienced team will ensure your design meets code, is constructible, and is ready for approval.

GreenTag’d Jurisdictions

Cities We’re Authorized to Perform Third-Party Plan Review In

Click your city link for more information

Alvarado Anna Arlington Azle Bastrop/Travis County ESD #1 Bedford Blue Mound Burleson Dalworthington Gardens Denison Duncanville Edinburg Everman Georgetown (Sprinkler Only) Granbury Grand Prairie Grapevine Greenville Haltom City Hamilton Harlingen Harris County Haslet Heath Hidalgo Highland Village Hillsboro Hudson Oaks Krum Lake Worth Little Elm Mansfield McAllen McLendon-Chisholm Melissa Midlothian Mineral Wells Mount Pleasant Nevada Paris Parker County Pharr Ponder Princeton Rockwall Royse City San Angelo San Marcos Sherman Southlake Springtown Tarrant County Tomball Trophy Club University Park Waco Watauga Waxahachie Weatherford Westlake White Settlement Wise County Wylie

Texas Board of Professional Engineers and Land Surveyors Certificate of Registration

Registration Number

F-18532

GreenTag Engineering Texas Board of Professional Engineers certificate