10.1 Workers Compensation Overview

Key Takeaways

  • Workers' compensation is a NO-FAULT system: employees receive benefits regardless of who caused the injury, in exchange for surrendering the right to sue their employer in tort
  • The EXCLUSIVE REMEDY doctrine bars employees from suing employers for workplace injuries, with narrow exceptions (intentional harm, dual capacity, uninsured employer)
  • Coverage is a state-by-state mandate: numeric thresholds run from 1 employee (most states) up to 5 (e.g., MO, FL non-construction); Texas is the only state where private coverage is fully optional
  • Standard workers' comp policy is the NCCI Workers Compensation and Employers Liability Insurance Policy (WC 00 00 00), with Part One (statutory benefits) and Part Two (employers liability)
  • Federal systems carve out specific worker classes: FELA (railroads), Jones Act (seamen), USL&H (longshore/harbor), and FECA (federal civilian employees)
Last updated: June 2026

What Workers' Compensation Is

Workers' compensation is a state-mandated insurance system that pays defined benefits to employees who suffer a work-related injury or occupational disease. It is a no-fault system: the employee does not have to prove the employer was negligent, and the employer cannot defeat the claim by proving the employee was careless.

Quick Answer: Workers' comp pays an injured worker's medical bills and a portion of lost wages without anyone proving fault. In return, the worker gives up the right to sue the employer in civil court — the exclusive remedy bargain struck in the early 1900s (the "grand bargain").

The standard contract sold by private insurers is the National Council on Compensation Insurance (NCCI) Workers Compensation and Employers Liability Insurance Policy (form WC 00 00 00). It has two operative parts you must keep straight for the exam:

Policy PartCommon NameWhat It DoesLimit
Part OneWorkers CompensationPays statutory benefits the law requiresUnlimited
Part TwoEmployers LiabilityPays for injury-related suits outside the statuteLimited

The No-Fault Trade-Off

The whole system rests on a swap of legal rights:

Employee SurrendersEmployee Gains
Right to sue employer for negligenceGuaranteed benefits, no fault proof needed
Possibility of large jury awards (pain & suffering)Prompt, predictable medical and wage payments
Open-ended litigationA statutory schedule of benefits

Because it is no-fault, a worker is paid even when the injury was the worker's own carelessness. The classic exam trap: "The employee caused the accident, so the claim is denied." Wrong — carelessness is irrelevant. The only conduct that bars a claim is the narrow exclusion set (intoxication as proximate cause, intentional self-harm, initiated horseplay), covered in 10.4.

The Exclusive Remedy Doctrine

Exclusive remedy means workers' comp is the only remedy an employee has against the employer for a job injury — even a clearly negligent employer cannot be sued in tort. The doctrine has limited exceptions:

ExceptionHow It Defeats Exclusive Remedy
Intentional actEmployer deliberately injures the worker
Uninsured employerEmployer illegally failed to carry coverage
Dual capacityEmployer harms worker in a separate role (e.g., as product maker)
Third-party suitWorker sues an outside party (manufacturer), who is not the employer

Who Must Carry Coverage

Thresholds are set by each state by employee count, industry, and entity type. Construction is almost always 1 employee.

ThresholdRepresentative States
1+ employeesCA, CT, MA, NY, and all states for construction
3+ employeesNC, VA, NJ
4+ employeesSC, FL (non-construction), GA (non-construction)
5+ employeesMO (non-construction)
OptionalTX (only state — except government contractors)

Failing to carry required coverage strips the employer of exclusive remedy and exposes it to direct suits plus criminal penalties. Examples: California up to one year jail and fines to $100,000; New York fines of $2,000 per ten days uninsured; Pennsylvania a third-degree felony.

State Versus Federal Coverage

Most workers fall under their state act, but four federal systems override it for specific jobs — a heavily tested table:

Federal ProgramCovered WorkersNo-Fault?
FELA (Federal Employers Liability Act)Interstate railroad workersNo — must prove negligence
Jones Act (Merchant Marine Act, 1920)Seamen / vessel crewNo — negligence suit
USL&H ActLongshore, harbor, ship-repair workersYes
FECAFederal civilian employeesYes

These federal acts are detailed in 10.5. For the overview, remember only that the type of worker — not the location of the accident — determines which system applies, and that the two railroad/maritime acts (FELA and the Jones Act) replace no-fault with a negligence lawsuit.

How Coverage Is Bought and Priced

Workers' comp is one of the few lines where the premium is a moving target. The exam expects you to know the basic mechanics:

ElementWhat It Means
Classification codeEach job type gets an NCCI class code with its own rate per $100 of payroll
PayrollThe exposure base — premium is rate × (payroll ÷ 100)
Experience modification (mod)A debit/credit factor (above or below 1.00) reflecting the employer's loss history
Premium auditCoverage is written on estimated payroll, then audited at year-end and adjusted

An employer with worse-than-average losses carries a mod above 1.00 (a surcharge); a safer-than-average employer earns a mod below 1.00 (a credit). This direct link between safety and price is one reason the system is said to incentivize loss prevention. A retail clerk's class rate is a few dollars per $100 of payroll; a roofer's may be many times higher, reflecting injury frequency and severity.

Common Overview Traps

  • "The injury happened off the clock at a company picnic the employer required — denied." Wrong: an employer-required or sponsored activity generally arises out of employment and is covered.
  • "The employee was grossly negligent — denied." Wrong: no-fault ignores ordinary or even gross carelessness; only the narrow exclusions in 10.4 bar a claim.
  • "Workers' comp pays pain and suffering." Wrong: it pays a schedule of medical, wage, death, and rehab benefits — never tort-style pain-and-suffering damages. Those appear only under the negligence-based federal acts.
Test Your Knowledge

An employee carelessly ignores a posted warning and is injured operating a machine. The employer was not negligent. How does workers' compensation respond?

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Test Your Knowledge

Which statement best describes the 'exclusive remedy' bargain at the heart of workers' compensation?

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Test Your Knowledge

Which federal program covers an interstate railroad worker injured on the job, and how does it differ from state workers' compensation?

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