Workers' Compensation Insurance: State Requirements and COI Verification

A roofing contractor's employee falls from a scaffold at your property and suffers a traumatic brain injury. Medical bills exceed $400,000. Lost wages over the recovery period add another $150,000. Permanent disability payments could reach $300,000 over the employee's lifetime.

If the contractor carries Workers' Compensation insurance, their WC policy covers all of it. If they do not, or if their coverage has lapsed, or if they are exempt from WC requirements and chose not to carry it — the injured worker's attorney is going to look for someone else to pay. That someone is you, the property owner or general contractor who hired the uninsured subcontractor.

Workers' Compensation is not optional in most states, and verifying it on a COI is not a formality. It is a critical risk management function.

Workers' Compensation Basics

Workers' Compensation is a no-fault insurance system that covers employees who are injured or become ill as a result of their employment. The fundamental bargain is straightforward: the employer provides coverage for workplace injuries regardless of fault, and in exchange, the employee gives up the right to sue the employer for negligence.

Key characteristics:

Employer-funded. The employer pays the premium. Employees do not contribute. This distinguishes WC from health insurance, where cost-sharing is common.

No-fault. Coverage applies regardless of who caused the injury. An employee who trips over their own feet is covered just as fully as one who is injured by a defective machine. The only exception is intentional self-harm or injuries sustained while intoxicated (and even these exceptions vary by state).

State-regulated. Workers' Compensation is governed by state law, not federal law. Each state sets its own benefit levels, coverage requirements, exemptions, and administrative procedures. There is no national WC policy or federal WC mandate (except for specific categories like federal employees, longshoremen, and railroad workers).

Mandatory in most states. Texas and South Dakota are the only states where private employers are not required to carry WC (though most do). Every other state mandates coverage, with penalties ranging from fines to criminal prosecution for non-compliance.

What Workers' Compensation Covers

WC benefits fall into four categories:

Medical Benefits

All reasonable and necessary medical treatment related to the workplace injury. This includes emergency care, surgery, hospitalization, physical therapy, prescription medications, prosthetics, and ongoing medical management. There is no deductible or copay for the injured worker.

Disability Benefits

Wage replacement for employees who cannot work due to their injury. Disability benefits are categorized as:

• Temporary Total Disability (TTD): The worker cannot perform any work during recovery. Benefits are typically 66.67% of the worker's average weekly wage, subject to a state maximum.
• Temporary Partial Disability (TPD): The worker can perform some work but not their full duties. Benefits cover a portion of the wage differential.
• Permanent Total Disability (PTD): The worker is permanently unable to perform any gainful employment. Benefits continue for life in most states.
• Permanent Partial Disability (PPD): The worker has a permanent impairment but can still work. Benefits are calculated based on the body part affected and the degree of impairment.

Vocational Rehabilitation

If the injured worker cannot return to their previous occupation, WC may cover vocational retraining, job placement services, and education.

Death Benefits

If a workplace injury results in death, WC provides funeral/burial benefits and ongoing income benefits to the worker's dependents (spouse and minor children).

Statutory Limits: What They Mean

On the ACORD 25 certificate, the Workers' Compensation section shows limits listed as "Statutory." This is not a dollar amount — it means the policy provides whatever benefits the applicable state law requires.

Every state sets its own benefit schedule: maximum weekly wage replacement, duration of benefits, medical fee schedules, impairment ratings. The "Statutory" limit on the certificate means the WC policy will pay benefits according to the law of the state where the injury occurs.

This is important because state benefits vary dramatically. Maximum weekly TTD benefits range from under $600 in some states to over $2,000 in others. Lifetime medical benefits are unlimited in some states and capped in others. When you see "Statutory" on a certificate, the actual dollar exposure depends entirely on which state's law applies.

For compliance purposes, "Statutory" is the only acceptable entry in the WC limits section. There are no "standard" dollar limits for WC as there are for CGL or Auto. If you see a specific dollar amount instead of "Statutory," the certificate may be reflecting Employers' Liability limits rather than WC benefits, or it may be incorrectly completed.

Employers' Liability: Part Two of the WC Policy

Every standard Workers' Compensation policy has two parts:

Part One — Workers' Compensation. Provides statutory benefits as described above. This is the no-fault system. The "Statutory" limits on the certificate refer to this part.

Part Two — Employers' Liability. Provides coverage when an employee (or their family) sues the employer outside of the Workers' Compensation system. While the WC bargain is supposed to be the exclusive remedy, there are exceptions that allow employees to bring lawsuits:

• Third-party-over actions: A third party (like a property owner) is sued by the injured employee, and the third party brings a contribution or indemnity action against the employer.
• Dual capacity claims: The employer is sued in a capacity other than as an employer.
• Loss of consortium: The employee's spouse sues for loss of companionship.
• Consequential bodily injury: A family member suffers emotional distress from witnessing the injury.

Employers' Liability limits appear on the ACORD 25 with three distinct sub-limits:

E.L. Each Accident

The maximum paid for any single accident involving employee injury. Standard: $1,000,000. This is the per-occurrence equivalent for Employers' Liability.

E.L. Disease — Each Employee

The maximum paid for occupational disease claims on a per-employee basis. Standard: $1,000,000. Occupational diseases include conditions caused by prolonged workplace exposures: silicosis from dust, mesothelioma from asbestos, hearing loss from noise.

E.L. Disease — Policy Limit

The aggregate maximum for all disease claims during the policy period. Standard: $1,000,000. This is the total the policy will pay for all occupational disease claims combined.

Monopolistic State Funds

Four states operate monopolistic Workers' Compensation funds: Ohio, Washington, Wyoming, and North Dakota. In these states, employers must purchase WC coverage from the state fund rather than from private insurers.

The implications for COI verification are significant:

Certificates look different. Monopolistic state fund coverage may not appear on a standard ACORD 25 issued by a private insurance carrier. The vendor may need to provide a separate certificate or proof of coverage from the state fund.

Employers' Liability is not included. Monopolistic state funds typically provide Part One (statutory WC benefits) only. Part Two (Employers' Liability) is not included. The vendor must purchase a separate Employers' Liability policy — commonly called a Stop Gap endorsement — from a private carrier.

Stop Gap coverage is essential. Without Stop Gap or a separate Employers' Liability policy, the vendor has no coverage for lawsuits outside the WC system. If a third-party-over action is brought against the vendor-employer, there is no Employers' Liability policy to respond. This gap directly affects you: if you are sued by the vendor's injured employee and you seek contribution from the vendor, the vendor has no Employers' Liability coverage to fund their share.

When reviewing a certificate for a vendor operating in a monopolistic state, verify both the state fund WC coverage and a separate Employers' Liability or Stop Gap policy. If only the state fund certificate is provided, the Employers' Liability gap must be addressed.

WC Exemptions

Not every worker is required to be covered by Workers' Compensation. State laws provide exemptions for certain categories of workers and business structures.

Sole Proprietors

In most states, sole proprietors are exempt from WC requirements. They can elect to cover themselves but are not required to. A sole proprietor who chooses not to carry WC has no coverage for their own injuries. If the sole proprietor has employees, the employees must be covered.

Partners

Similar to sole proprietors, partners in a partnership are typically exempt. Again, employees of the partnership must be covered.

Corporate Officers

Many states allow corporate officers to exempt themselves from WC coverage. The rules vary: some states allow all officers to opt out, others limit exemptions to officers who own a minimum percentage of the company (often 10% or more), and some states require a minimum number of officers to remain covered.

Independent Contractors

Workers classified as independent contractors (not employees) are generally not covered by the hiring company's WC policy. However, misclassification of employees as independent contractors is a significant compliance risk. If a "contractor" is later determined to be an employee under state WC law, the hiring company may be liable for WC benefits and penalties.

Minimum Employee Thresholds

Some states exempt employers with fewer than a specified number of employees. The threshold varies: one employee (no exemption), three employees, four employees, or five employees. Agricultural and domestic workers often have separate thresholds.

Verifying Workers' Compensation on the ACORD 25

The Workers' Compensation section on the ACORD 25 is in the lower portion of the coverage grid. Verification requires checking several fields:

WC Statutory Limits

Confirm the entry reads "Statutory" (shown as an X in the WC Statutory Limits box). Any other entry is non-standard and warrants investigation.

Employers' Liability Limits

Verify that the three sub-limits (Each Accident, Disease-Each Employee, Disease-Policy Limit) meet your minimum requirements. Standard is $1,000,000 for each. For high-risk vendors or large projects, you may require $2,000,000 or higher.

Policy Number and Dates

Verify the WC policy number is present and the policy period covers the relevant work period. WC policies, like other commercial policies, run for 12-month terms.

State Coverage

If the vendor operates in multiple states, the WC policy must cover the state(s) where work is performed. Some policies are written for specific states. The certificate may show a list of covered states. Verify that the state where your property or project is located is included.

Subr WVD (Subrogation Waived)

If your requirements include Waiver of Subrogation for WC, check whether the Subr WVD column is marked for the WC line. Also verify corresponding language in the Description of Operations referencing WC 00 03 13.

If WC Is Not Shown

If the WC section is blank or marked "N/A," determine why. The vendor may be a sole proprietor in an exempt state, may have no employees, or may be non-compliant. Request a written explanation and evaluate the risk. If the vendor is truly exempt, consider requiring a WC exemption affidavit and additional General Liability coverage.

Workers' Compensation and Your Exposure

The reason WC verification matters to certificate holders is not abstract. In most states, if you hire a contractor who does not carry Workers' Compensation and their employee is injured on the job, you may be held liable for WC benefits as the "statutory employer." This doctrine varies by state, but the principle is consistent: the party at the top of the contracting chain bears responsibility when the party below fails to provide coverage.

In construction, this exposure is codified. General contractors are responsible for ensuring subcontractors carry WC. Property owners are responsible for ensuring contractors carry WC. If the subcontractor's employee is injured and there is no WC policy, the general contractor's WC policy pays — and the general contractor's experience modification rate (which drives their premium) goes up.

Verifying Workers' Compensation is not paperwork. It is protecting your organization from a liability that can easily reach six or seven figures per incident.