8 Safety Metrics You Need To Track Every Month

Last updated: April 2026

You pull up your safety numbers before a prequalification deadline and realize you're not sure which ones actually matter. TRIR is on the ISNetworld form. DART shows up on bid packages. EMR affects your insurance premium. But which metrics tell you whether your safety program is working before someone gets hurt?

Safety metrics are quantitative measures that track workplace safety performance across two categories: lagging indicators that measure past outcomes and leading indicators that predict future risk. Tracking both gives contractors the numbers they need for bids and insurance while catching problems before they become injuries.

Why Safety Metrics Matter for Contractors

Safety metrics stopped being optional the moment clients started asking for them on every bid package.

General contractors set TRIR thresholds for subcontractors. ISNetworld, Avetta, and ComplyWorks require TRIR, DART, and EMR documentation for prequalification. Your experience modification rate directly determines what you pay for workers' compensation insurance every year.

But the business case goes beyond compliance. Contractors who track the right metrics catch drift early: inspections getting skipped, corrective actions piling up, the same hazards appearing job after job. Catching that drift at month two instead of month eight is the difference between a coaching conversation and an OSHA citation.

If your safety program produces a binder nobody opens until audit season, these metrics turn it into a system that actually protects people and wins work. For a deeper dive on audit readiness, see our guide on strategies to pass your next safety audit.

Leading vs Lagging Safety Indicators

Most contractors only track lagging indicators: TRIR, DART, EMR. These tell you what already happened. Tracking only lagging indicators is like driving a truck using only the rearview mirror.

Lagging indicators measure outcomes after the fact. An injury happened, a claim was filed, a day was lost. They are essential for benchmarking, prequalification, and insurance, but they cannot prevent the next incident.

Leading indicators measure the activities that prevent incidents. Inspections completed, near misses reported, corrective actions closed, training current. These numbers tell you whether your safety system is functioning before something goes wrong.

The contractors with the best safety records track both. Their lagging indicators (TRIR, DART, EMR) look good because their leading indicators (inspections, training, corrective actions) are consistently strong. The metrics reinforce each other.

Here is how the two types work together: a spike in incomplete inspections (leading) often precedes a rise in recordable incidents (lagging) by 60 to 90 days. If you are only watching TRIR, you will not see the problem until someone is already hurt.

The 8 Safety Metrics Every Contractor Should Track

You do not need a dashboard with 30 numbers. You need a short list that answers two questions: Are we doing the basics consistently across every crew and job? Are we closing the loop on hazards before they become incidents, citations, or audit findings?

These eight metrics are the ones that make the biggest difference for contractors because they are practical to track, they show early warning signs, and they directly affect your ability to win work.

1. Total Recordable Incident Rate (TRIR)

Type: Lagging indicator

TRIR (Total Recordable Incident Rate) measures the number of OSHA-recordable injuries and illnesses per 100 full-time workers over a given period. It is the most commonly requested safety metric on prequalification forms and bid packages.

Formula: TRIR = (Number of Recordable Incidents x 200,000) / Total Hours Worked

The 200,000 figure represents 100 employees working 40 hours per week for 50 weeks per year (OSHA interpretation, 2016).

2024 benchmark: The construction industry average TRIR was 2.3 per 100 full-time equivalent workers, down from 2.4 in 2023 (Bureau of Labor Statistics, 2024 data).

Why contractors track it: Many general contractors will not hire subcontractors with a TRIR above their threshold. ISNetworld and Avetta require it. It is the scoreboard, but it does not tell you what to fix next.

For the complete calculation walkthrough and free calculator, see our guide to calculating TRIR and try our free TRIR calculator.

2. DART Rate

Type: Lagging indicator

DART (Days Away, Restricted, or Transferred) rate measures the number of incidents serious enough to result in time away from work, restricted duties, or a job transfer per 100 full-time workers.

Formula: DART Rate = (DART Cases x 200,000) / Total Hours Worked

2024 benchmark: The national all-industry DART rate was 1.4 per 100 FTE, down from 1.5 in 2023 (National Safety Council, 2024 data).

Why it matters: DART tells you how many incidents were serious enough to affect the worker's ability to do their job. A low TRIR with a high DART rate means most of your incidents are severe. DART is increasingly requested on prequalification forms alongside TRIR.

For the full DART calculation walkthrough, see our DART rate guide.

3. Experience Modification Rate (EMR)

Type: Lagging indicator

Experience Modification Rate (EMR) is an insurance metric that compares your company's workers' compensation loss experience to the average for businesses of similar size in your industry. It is calculated by the National Council on Compensation Insurance (NCCI) or your state rating bureau.

Benchmark: An EMR of 1.0 is the industry average. Below 1.0 means your loss experience is better than average and you pay lower premiums. Above 1.0 means worse than average and higher premiums.

Financial impact: The difference between an EMR of 0.80 and 1.20 on a base premium of $100,000 is $40,000 per year. For contractors with large payrolls, EMR swings can mean hundreds of thousands in annual premium differences.

Key detail: The NCCI formula weighs the frequency of claims more heavily than their severity (NCCI, ABCs of Experience Rating). Five small claims will damage your EMR more than one large claim of the same total cost.

For a deep dive on what drives EMR and how to lower it, see our complete EMR guide and our EMR in construction guide.

4. Near-Miss Reporting Rate

Type: Leading indicator

Near misses are the earliest warning signal your safety program produces. If nobody is reporting near misses, it does not mean you have zero risk. It means your crews are not reporting.

What to track monthly:

• Number of near misses reported (per crew, per job)
• Whether reports include enough detail to create a corrective action
• Whether corrective actions were actually created and closed

Contractor tip: Make reporting easy. A two-page paper form guarantees underreporting. A 30-second digital report from a phone gets you real data.

5. Safety Inspection Completion Rate

Type: Leading indicator

Inspections are one of the strongest leading indicators because they show whether supervisors are actively looking for hazards in the field, not just waiting for something to go wrong.

What to track monthly:

• Inspections scheduled vs inspections completed (site, equipment, vehicle)
• Defects found per inspection
• Defects closed within target timeframe

Contractor tip: Short inspections done consistently beat long inspections nobody completes. A 10-minute daily walkthrough catches more than a 2-hour monthly audit. See our guide on developing equipment inspections in 5 steps.

6. Corrective Action Close-Out Rate

Type: Leading indicator

This is one of the most important monthly metrics because it answers a simple question: when we find a hazard, does it actually get fixed?

What to track monthly:

• Corrective actions opened
• Corrective actions closed
• Overdue items and how overdue

Contractor tip: If you only track one leading indicator, track corrective action closure. Open corrective actions are future incidents waiting for a date. A pile-up of overdue actions is one of the clearest predictors of an upcoming recordable.

7. Training Compliance Rate

Type: Leading indicator

Training compliance shows whether your workforce is current on the certifications and competencies that prevent injuries and citations. It is also one of the first things auditors check.

What to track monthly:

• Who is current vs who is due or expired
• Whether proof of training is stored centrally (not in a binder on a shelf somewhere)

Priority training areas for most contractors:

• Fall protection and working at heights
• Equipment operation (forklift, aerial lift, crane)
• Lockout/tagout (LOTO procedures)
• Hazard communication
• First aid and incident reporting

8. Behavior Safety Observations (BBOs)

Type: Leading indicator

Behavior observations help you see what is happening in the field between inspections. They capture both safe behaviors (what is working) and at-risk behaviors (what needs coaching) before they lead to incidents.

What to track monthly:

• Number of observations completed across crews
• Top repeated safe behaviors
• Top repeated at-risk behaviors
• Actions created from observations vs actions closed

For more on setting up an observation program, see our guide on behavior-based safety observations.

How to Run a Monthly Safety Metrics Review

You do not need a safety committee meeting that takes half a day. A focused monthly review can be done in 30 minutes and still catch everything that matters.

A simple monthly cadence:

• 10 minutes: Inspections completed vs scheduled, defects found, defects closed. Are completion rates holding or slipping?
• 10 minutes: Training status. Who is due for recertification this month? Who is already expired? Is proof stored where you can find it?
• 5 minutes: Near misses reported and top repeat hazards. Are the same issues showing up job after job?
• 5 minutes: Pick one improvement to focus on next month. Not ten. One.

The goal is consistency, not perfection. A contractor who reviews these numbers every month for a year will have a fundamentally better safety program than one who scrambles to compile everything the week before an audit.

How Safety Metrics Connect to Prequalification and Insurance

For contractors bidding on work with general contractors, owner-operators, or in prequalification systems, safety metrics are not just internal scorecards. They are gatekeepers.

Prequalification platforms like ISNetworld, Avetta, and ComplyWorks require TRIR, DART, and EMR history. Many general contractors set hard thresholds: if your TRIR is above their cutoff, your bid does not get reviewed regardless of price or capability.

EMR and insurance premiums: Your experience modification rate directly multiplies your base workers' compensation premium. An EMR of 0.85 means you pay 15% less than the industry baseline. An EMR of 1.15 means you pay 15% more. Over a three-year policy period, this compounds into significant dollars.

Contractors who consistently track leading indicators (inspections, corrective actions, training) see their lagging numbers improve over 12 to 18 months, which flows directly into lower EMR and better prequalification scores. The metrics are connected. Improving one category improves all of them.

For more on how safety performance affects your bottom line, see our guide on top OSHA violations in 2025 and how to avoid them.

Frequently Asked Questions