If you work in safety, you need to know what TRIR is. It’s the most widely requested safety number in the US by auditors, and also one of the most misunderstood.
In this guide, I cover what TRIR is and how to calculate it, how it differs from other safety metrics, and what counts as a good rate.
Contents:
- What Is TRIR?
What Counts as a Recordable Incident (and What Doesn’t)
- TRIR Formula and Example
TRIR vs DART, LTIR, LTIFR, and Other Safety Metrics
- Why TRIR Matters
- What Is a Good TRIR?
Why TRIR Alone Can Mislead You
- How to Reduce Your TRIR
- How Fluix Helps Your Move Your TRIR
- FAQ
What Is TRIR?
(TRIR) Total Recordable Incident Rate is a standardized safety metric that calculates the number of recordable workplace incidents per 100 full-time employees over a given period, typically a year.
It is calculated as (number of recordable cases × 200,000) ÷ total hours worked, where 200,000 represents 100 employees working 40 hours a week for 50 weeks.
You’ll also see it called the total recordable injury rate, or the total case incidence rate (TCIR) in Bureau of Labor Statistics reports. All three names describe the same calculation.
The key word is “recordable”. TRIR doesn’t count every injury on site, only the cases OSHA requires you to log on your OSHA 300 log. Because every US employer applies the same rules, a TRIR from a wind farm in Texas can be compared with one from a construction site in Ohio, at least in theory.
As defined by the Occupational Safety and Health Administration (OSHA) in 29 CFR 1904.7, a work-related injury or illness is recordable if it results in:
- Death
- Days away from work
- Restricted work activity or job transfer
- Medical treatment beyond first aid
- Loss of consciousness
- Significant injury or illness diagnosed by a physician or other licensed healthcare professional
First aid, near misses, and property damage stay out of the number. The next section shows where that line falls in practice.
What Counts as a Recordable Incident (and What Doesn’t)
Most TRIR arguments on site are about whether a case counts. The line is usually first aid versus medical treatment, and OSHA defines first aid as a closed list. If the treatment is on the list, the case is not recordable, even if a doctor gave it:
- Non-prescription medication at non-prescription strength
- Cleaning and covering wounds, butterfly bandages, Steri-Strips
- Hot or cold therapy
- Non-rigid support such as elastic bandages or wraps
- Removing a splinter or a foreign body from the eye by irrigation or a cotton swab
- Tetanus shots
Stitches, prescription-strength medication, rigid splints, or a physical therapy course make the case recordable. So does a single day of restricted work. A worker who cuts a hand on a grinder and gets three stitches is a recordable case. The same cut closed with Steri-Strips is not.
TRIR Formula and Example
TRIR = (Number of recordable cases × 200,000) ÷ Total hours worked by all employees.
By knowing the total number of recordable incidents and the total number of hours worked during the reporting period, you can easily determine this essential safety metric. The 200,000 converts the result to a rate per 100 full-time workers (100 people × 40 hours × 50 weeks), so companies of different sizes can be compared.
When calculating the total number of work hours, exclude vacation, holiday, sick time, and other forms of leave. Use hours actually worked, including overtime and supervised temporary staff.
Let’s unpack this example. Suppose a company has 10 recordable incidents in a year with 500,000 total employee hours. Multiply 10 by 200,000 (2,000,000), then divide by 500,000. The outcome of this TRIR calculation is 4 recordable incidents per 100 employees.
Now try it with a smaller crew. A 50-person contractor works roughly 100,000 hours a year. One recordable case gives a TRIR of 2.0, slightly below the 2024 private-industry average. A second case, perhaps a hand cut needing stitches, doubles it to 4.0. Nothing about how the company works has changed, but its TRIR now looks well above average. Keep this example in mind for the section on why TRIR can mislead.
Related Related The 7 best health and safety management software in 2026, tested by our team
TRIR vs DART, LTIR, LTIFR, and Other Safety Metrics
If you’ve seen TRIR and other metrics on the same dashboard and wondered why the numbers differ, it’s because each one counts a different slice of the same incidents. Here’s how they compare:
| Metric | What it counts | Rate base | Where you’ll see it | How it differs from TRIR |
|---|---|---|---|---|
| TRIR / TCIR | All OSHA-recordable injuries and illnesses | Per 200,000 hours | OSHA 300A, BLS tables, client prequalification | This is TRIR. TCIR is the name BLS uses |
| DART rate | Only cases with days away, restricted work, or job transfer | Per 200,000 hours | OSHA inspection targeting, BLS | A subset of TRIR: more serious cases only, so always lower |
| LTIR | Only cases with at least one day away from work | Per 200,000 hours | Internal dashboards, contractor bids | Narrower than DART: restricted-duty cases don’t count |
| LTIFR | Lost-time injuries | Per 1,000,000 hours | UK, Australia, EU, global energy firms | A different base, so roughly 5× higher than an LTIR from the same data |
| TRIFR | All recordable injuries | Per 1,000,000 hours | Australia, multinational reporting | Same idea as TRIR, but 5× the number for the same performance |
| EMR | Workers’ comp claims cost vs industry expectation | Ratio (1.0 = average) | Insurance, bid prequalification | Based on cost, not case count, and lags about three years |
The most common mistake in multinational companies is comparing a US site’s TRIR with a European site’s TRIFR. A TRIR of 2.0 and a TRIFR of 10.0 describe the same performance. For a deeper look at the lost-time side, see our guide to the lost time incident rate.
Two more pairs that get mixed up:
- Leading vs lagging indicators. TRIR, DART, and LTIR are lagging: they count harm that has already happened. Leading indicators, such as inspection completion, open corrective actions, and near-miss reports, measure the activity that prevents harm. More on these below.
- Incident vs accident. OSHA’s recordkeeping uses “injury and illness cases”. “Incident” in TRIR doesn’t include near misses or property damage, which is one reason TRIR misses so much of the risk.
Why TRIR Matters
TRIR is important because it serves as a critical indicator of your company’s safety performance. It’s also the number other people ask you for.
By tracking and analyzing TRIR, you can:
- Identify trends in workplace injuries and illnesses
- Benchmark safety performance against industry standards
- Prioritize targeted safety improvement initiatives
- Fulfill regulatory reporting requirements
- Pass contractor prequalification: clients and platforms such as ISNetworld and Avetta typically ask for three years of TRIR and EMR before you can bid
For safety officers, it is important to note that OSHA tracks TRIR, along with the Days Away, Restricted, or Transferred (DART) rate, for certain industries. Depending on your sector and size, your company may be required to post the OSHA Form 300A summary and submit it electronically through OSHA’s Injury Tracking Application.
What Is a Good TRIR?
Returning to the example above, is 4 a “good” TRIR? The answer varies by industry since different types of businesses carry different levels of risk.
The latest national benchmark comes from the BLS Survey of Occupational Injuries and Illnesses: in 2024 the private-industry rate was 2.3 cases per 100 full-time workers, down from 2.4 in 2023. Employers reported 2.5 million cases, the lowest total since the series began in 2003. Find your own industry’s average with your NAICS code in the BLS industry tables.
A “good” TRIR is one below your industry average that stays there for several years. If you’re a small company, read the 50-person example above again before celebrating a low year or panicking over a high one.
Why TRIR Alone Can Mislead You
TRIR has been the default measure of safety performance for about 50 years, and the research behind it is weaker than most people assume.
In November 2020, the Construction Safety Research Alliance at the University of Colorado Boulder analysed 17 years of data covering 3.2 trillion worker-hours. Its conclusions, led by Professor Matthew Hallowell, were blunt. Recordable injuries occur almost entirely at random. There is no discernible association between TRIR and fatalities. In nearly every practical case, it’s statistically invalid to use TRIR to compare companies, projects, or teams. As the report points out, a four-stitch cut counts the same as a fatality, and a near miss that could have killed someone doesn’t count at all.
That doesn’t mean you can stop reporting TRIR. OSHA, insurers, and clients still ask for it. But it changes how much weight the number should carry in internal decisions. The safety leaders we’ve interviewed on Fluix’s Field Intelligence podcast describe what happens when it carries too much.
John Dunne, Group Head of Health and Safety at Red Sea Global, describes the same effect in inspection scores in Field Intelligence episode #2. When a number is tied to performance reviews, nobody wants to be below the line:
“Everybody wants to be over a minimum score. Everything’s fantastic. And I just know that simply isn’t true.”
Swap “inspection score” for “TRIR target” and you get the first-aid versus medical-treatment pressure described earlier. The number improves while the risk stays the same.
Liam Hook, HSE Manager at Marubeni Middle East and Africa Power Limited, adds a second problem in Field Intelligence episode #1: the tools that should catch risk early tend to narrow what people look at.
“Checklists are good because they remind you of something to look for and to look at, but then you become very blinkered — is all of this OK, yes or no?”
Our view at Fluix, after working with 12,000 field service teams: report TRIR, but don’t manage by it. Manage by what your inspections are finding, and treat TRIR as the score at the end of the game rather than the plan for playing it.
How to Reduce Your TRIR
Similar to other critical safety metrics, TRIR can be a powerful tool for driving safety improvement. But you can’t reduce it by working on TRIR directly. You reduce it by acting on the inputs.
1. Identify Patterns and Root Causes
By analyzing incidents contributing to the TRIR, you can identify patterns such as a common underlying cause of injuries or illnesses. Then put recordables, near misses, and inspection findings side by side for the same sites. If two of your three recordables came from the same task that inspectors flagged twice beforehand, you’ve found your priority. This analysis allows your safety management system to target specific areas for improvement.
2. Inspect Where the Recordables Come From
Increase inspection frequency on the tasks and assets behind your recordables, and rewrite those checklist items so a “no” requires a photo, a note, and an owner. Then target safety awareness campaigns and toolbox talks at the same few risks, rather than at topics that don’t drive your numbers.
3. Implement Preventative Measures
With the data derived from TRIR calculations, you can take steps to remove the specific risks identified, reducing the likelihood of future incidents.
According to the Associated Builders and Contractors data, construction companies can reduce TRIR by an average of 64% by tracking and reviewing proactive safety steps.
By keeping an eye on measures like behavior-based safety observations, you lower the risk of regulatory complaints and associated financial penalties. And a lower incident rate, in its turn, can qualify you for lower business and workers’ comp insurance premiums through a better ERM.
4. Set Leading Goals
Pair any TRIR target with two or three leading targets you control directly, such as 95% inspection completion, corrective actions closed within 14 days, or a rising number of near-miss reports. Review them in safety audits. If you only reward a falling TRIR, expect fewer reports rather than fewer injuries.
5. Engage Employees
Sharing TRIR data with your teams involves them in the company’s safety culture. People are more likely to participate actively in safety programs and initiatives when they feel engaged and understand the impact of their actions. Share the leading indicators too, especially near-miss reports, so crews see that reporting is wanted rather than penalized.
How Fluix Helps Your Move Your TRIR
Fluix is inspection management software for field teams, used by 12,000 field service teams across construction, energy, utilities, and aviation to run safety inspections, compliance and . It doesn’t calculate TRIR for you, but gives you the inspection data that moves it:
- The Fluix Dashboard shows inspection completion, open actions, and repeat findings by site, the leading indicators described above.
- Inspections that capture evidence. A failed item requires a photo, a location, and a severity rating, even offline.
- Findings become owned corrective actions with due dates, so overdue hazards are visible rather than buried in reports.
- Incident reporting from the field, with photos and notes, so recordability decisions are made on facts.
