Glossary

Yellow tag

It means the system has problems but it still works. It is not an emergency and it is not out of service.

A yellow tag means the sprinkler system still works, but something on it does not meet the standard and has not been fixed.

In Texas the tag is law, not shop practice. Under 28 TAC 34.721, an inspector attaches a completed yellow tag to the riser when the system is noncompliant with the applicable NFPA standards or contains manufacturer-recalled equipment, and the problem does not amount to an emergency. The inspector's signature certifies the list of noncompliant items written on the tag. The system stays in service. A red tag is the out-of-order tag; yellow is the fix-this tag.

Where it comes from

Codified. 28 TAC 34.721, Yellow Tags, part of the State Fire Marshal's fire sprinkler rules in Chapter 34, Subchapter G, administered by the Texas Department of Insurance. The tag scheme (installation, service, ITM, yellow, and red tags, sections 34.718 through 34.722) took effect April 1, 2006 under the Commissioner's adoption order.

The line between yellow and red is a defined term. 28 TAC 34.706 defines an emergency impairment as a water-based system, or part of one, out of order because of an unexpected occurrence: a ruptured pipe, a sprinkler that has operated, a water supply cut off. Below that line the tag is yellow. At it, 28 TAC 34.722 requires a red tag.

NFPA 25 sorts what you find into deficiencies and impairments. It does not assign tag colors. Colors are state inventions, which is why they do not travel.

On the job

Hanging a yellow tag starts a filing clock. Written notice of every noncompliant condition must reach the building owner or the owner's representative and the local AHJ, postmarked, emailed, faxed, or hand delivered within five business days of the tag going on. The fire marshal is in the loop by rule, not by courtesy.

Coming off is controlled too. Only a licensed employee of a registered firm, or a government representative with regulatory authority, may remove the tag, and only after a service tag documents that the conditions were corrected. The AHJ gets notice of the removal within five business days as well.

The tag itself carries the firm's name and registration number, the RME's license number, the service person's printed name and signature, the punched date, the owner's information, and the list of items not compliant with NFPA standards, under the header DO NOT REMOVE BY ORDER OF TEXAS STATE FIRE MARSHAL.

For the contractor, a yellow tag is a documented open repair, and it usually becomes a quote the same week. It is also enforceable paper. Under 28 TAC 34.724, ignoring the tag procedures can cost a firm its license or registration through suspension, revocation, or administrative penalties.

Yellow tag versus Red tag

Both tags mean the inspector found something wrong. The difference is whether the system can still do its job. Yellow means noncompliant but operating: it breaks the standard, and it can still flow water. Red means emergency impairment: the system, or part of it, is out of order from something unexpected. A painted-over head is yellow. A ruptured pipe is red.

Yellow tag

Noncompliant with the adopted NFPA standards, or recalled equipment on the system. Still in service. Written notice to owner and AHJ within five business days.

Red tag

Emergency impairment as defined in the adopted edition of NFPA 25. Immediate oral notice to owner and AHJ, plus written notice within 24 hours.

The clock is the tell on a report. Five business days of paper is a yellow problem. Same-day phone calls and 24-hour paper is a red one. The deciding question at the riser is whether the system is out of order. If it is, the tag is red, and the owner's impairment duties start, including the fire watch decision.

Read the red tag entry.

Where it varies

Tag colors are jurisdictional. Texas codified them for sprinkler work effective April 1, 2006. Other states run different schemes or none at all: some require only a dated service tag, some leave tagging to the AHJ, and color meanings do not transfer between rulebooks. NFPA 25 itself never tells you what color to hang.

The practical rule for a crew crossing state lines: pull the state fire marshal's tag rules before the first inspection. A Texas-style yellow tag hung where no rule defines it is just cardstock, and a tech who assumes the five-day notice is universal will either miss a shorter local deadline or file paper nobody asked for.

Worked example

An inspector runs the annual on a wet system at a machine shop. The main drain test passes and the gauges hold, but eight heads are painted over and the spare head cabinet is empty. Nothing is out of order, so this is not an emergency impairment: he completes a yellow tag, lists the painted heads, and now has five business days to get written notice to the owner and the city fire marshal. The repair quote goes out that week, and the tag comes off only after the fix is documented on a service tag.

Sources

1. A yellow tag is required when a sprinkler system is noncompliant with the applicable NFPA standards or contains manufacturer-recalled equipment and the condition is not an emergency. TDI Adopted Sections, 28 TAC 34.706-34.725, Fire Sprinkler Rules (28 TAC 34.721(a) as adopted, TDI adoption order via tdi.texas.gov).

   “noncompliant with the applicable NFPA standards or to contain equipment that has been recalled by the manufacturer”

2. The inspector's signature on a yellow tag certifies the listed conditions that put the system out of compliance. 28 Tex. Admin. Code 34.721 - Yellow Tags (Texas Administrative Code 28 TAC 34.721(b) via law.cornell.edu).

   “signature of the service person or inspector on a yellow tag certifies the conditions that caused the system to be out of compliance”

3. Written notice of all noncompliant conditions must go to the building owner or representative and the local AHJ within five business days of attaching the yellow tag. 28 Tex. Admin. Code 34.721 - Yellow Tags (Texas Administrative Code 28 TAC 34.721(c) via law.cornell.edu).

   “within five business days of the attachment of the yellow tag”

4. Only authorized personnel may remove a yellow tag after a service tag documents corrections, and the AHJ must be notified within five business days of removal. 28 Tex. Admin. Code 34.721 - Yellow Tags (Texas Administrative Code 28 TAC 34.721(d) via law.cornell.edu).

   “within five business days of the date on which the yellow tag is removed”

5. Emergency impairment is defined as a water-based fire protection system or portion out of order due to an unexpected occurrence such as a ruptured pipe. 28 Tex. Admin. Code 34.706 - Definitions (Texas Administrative Code 28 TAC 34.706(5) via law.cornell.edu).

   “A condition where a water-based fire protection system or portion thereof is out of order due to an unexpected occurrence, such as ruptured pipe”

6. A red tag is required for an emergency impairment as defined in the adopted edition of NFPA 25. 28 Tex. Admin. Code 34.722 - Red Tags (Texas Administrative Code 28 TAC 34.722(a) via law.cornell.edu).

   “a fire protection sprinkler system has an impairment which constitutes an emergency impairment, as defined in the adopted edition of NFPA 25”

7. A red tag requires written notice within 24 hours of attachment, on top of immediate oral notice. 28 Tex. Admin. Code 34.722 - Red Tags (Texas Administrative Code 28 TAC 34.722(b) via law.cornell.edu).

   “postmarked, emailed, faxed, or hand delivered within 24 hours of the attachment of the red tag”

8. The tag rules in sections 34.718 through 34.722 took effect April 1, 2006. TDI Adopted Sections, 28 TAC 34.706-34.725, Fire Sprinkler Rules (TDI Commissioner's adoption order via tdi.texas.gov).

   “The adopted amendments and new sections are effective April 1, 2006.”

9. Failure to comply with the subchapter can bring suspension, revocation, or refusal to renew a license or registration, plus administrative penalties. TDI Adopted Sections, 28 TAC 34.706-34.725, Fire Sprinkler Rules (28 TAC 34.724 as adopted, TDI adoption order via tdi.texas.gov).

   “suspension, revocation, or refusal to issue or renew a license or a certificate of registration”

Related terms

• Red tag. A red tag on the riser means the system is out of service and cannot be counted on in a fire.
• Deficiency. Something on the system is wrong or slipping out of spec, but the system is still in service. It gets reported and corrected, not shut down.
• Critical deficiency. The system is still in service, but this finding can materially hurt how it performs in a fire, so it gets fixed first.
• Violation. The fire marshal wrote it up: a formal citation under the adopted fire code, with a deadline to correct and penalties behind it.
• AHJ (authority having jurisdiction). The AHJ is whoever can approve or reject the work: sometimes the fire marshal, sometimes the building official, the state, or the insurance company.

Verified August 7, 2026 against the sources above. Adopted editions and local amendments vary; your authority having jurisdiction has the final word. Nothing here is legal advice.