3.4 Iowa General Liability Insurance

Commercial liability is core casualty content. Iowa businesses rely on the Commercial General Liability (CGL) policy, supplemented by professional liability and umbrella coverage, all of which interact with Iowa's modified comparative fault rules. This section breaks down the CGL coverage parts, triggers, limits, and how they fit together.

Commercial General Liability (CGL)

The standard ISO CGL policy protects a business against third-party claims for bodily injury, property damage, and personal/advertising injury arising from its premises, operations, and products. It has three insuring agreements.

Coverage A - Bodily Injury and Property Damage

Exam tip: CGL Coverage A is occurrence-based - what matters is when the injury or damage occurs, not when the claim is made. This is the key contrast with claims-made professional liability.

Coverage B - Personal and Advertising Injury

Covers a specific list of offenses, not accidents:

Coverage C - Medical Payments

• No-fault coverage for minor third-party injuries on the premises, paid regardless of liability
• Typically $5,000-$10,000 per person
• A good-will payment that can head off larger liability claims

Exam tip: Coverage B covers offenses (libel, slander, defamation, advertising injury); Coverage C pays small medical bills without regard to fault. Coverage A is the broad bodily-injury/property-damage agreement.

CGL Limits Structure

A CGL policy uses several limits that interact - understanding the aggregate is essential:

Exam tip: The general aggregate is the total the policy will pay for most claims in the policy period; once exhausted, coverage stops until renewal. Products-completed operations has its own separate aggregate, so product claims do not erode the general aggregate (and vice versa).

Professional Liability and Umbrella

Professional Liability (Errors & Omissions)

CGL excludes liability arising from professional services. Professionals (insurance agents, accountants, consultants, design professionals) need E&O coverage:

• Trigger: usually claims-made - responds to claims first made during the policy period (often with a retroactive date)
• Tail coverage (Extended Reporting Period): protects against claims reported after a claims-made policy ends - essential when switching insurers or retiring

Exam tip: Occurrence (CGL) vs. claims-made (E&O) is heavily tested. Claims-made policies use a retroactive date and may need tail coverage to avoid a gap.

Umbrella / Excess Liability

• Provides additional limits above underlying CGL, auto, and employers' liability
• Sold in $1,000,000+ increments
• May "drop down" to cover some claims excluded by underlying policies (true umbrella), subject to a self-insured retention (SIR)

Iowa Comparative-Fault Tie-In

Iowa's modified comparative fault (Chapter 668) makes adequate liability limits crucial:

• A defendant 50% or more at fault can be jointly and severally liable for the full economic damages - potentially far exceeding their share
• Non-economic damages remain proportionate
• Higher CGL limits plus an umbrella protect against this joint-and-several economic exposure

Exam tip: Connect CGL/umbrella adequacy to the 51% / joint-and-several rule. A business that can be saddled with all economic damages needs limits sized for the worst case, not just its expected share.

Common CGL Exclusions and Endorsements

The CGL is broad but not unlimited. Frequently tested exclusions include:

• Expected or intended injury - intentional harm by the insured
• Workers' compensation / employer's liability - employee injuries belong on the WC policy, not the CGL
• Auto - liability from owned autos belongs on a commercial auto policy
• Professional services - belongs on E&O
• Pollution - largely excluded; needs separate environmental coverage
• Liquor liability - excluded for businesses in the business of serving alcohol (needs liquor-liability coverage)
• Damage to the insured's own work/product - the CGL is third-party coverage, not a performance warranty

Additional Insureds and Certificates

Contracts often require a business to add another party (a landlord, general contractor, or client) as an additional insured by endorsement and to provide a certificate of insurance as proof. The certificate is evidence of coverage, not a contract that grants it - the endorsement controls. Producers must use the correct additional-insured form so the promised protection actually exists, a frequent real-world and exam point. Issuing a certificate that overstates coverage can itself be an unfair trade practice and expose the producer to E&O liability.