UIM Coverage Granted to a Scheduled Individual Cannot Be Withdrawn Based on Vehicle Ownership

Case: Natalie Ayers v. Travelers Casualty Insurance Company

Court: Supreme Court of Delaware, sitting en banc

Date: October 1, 2026

Disposition: Reversed and remanded

Introduction

This case addresses whether a commercial automobile insurer may grant underinsured-motorist (“UIM”) coverage to a specifically scheduled individual and then deny that coverage because the individual was occupying her own vehicle when injured. The Supreme Court of Delaware held that it may not.

Natalie Ayers owned Industrial Electrical Services, Inc. (“IES”). IES purchased a commercial automobile policy from Travelers Casualty Insurance Company. Although IES was the policy’s sole named insured, Ayers paid an additional premium for a “Drive Other Car Coverage—Broadened Coverage for Named Individuals” endorsement and was listed in its schedule.

Ayers was later injured while driving her personally owned SUV for nonbusiness purposes. After exhausting the at-fault driver’s liability coverage and the UIM benefits under her personal policy, she sought additional UIM benefits from Travelers. Travelers denied coverage because the endorsement excluded vehicles owned by the scheduled individual or a family member.

The case presented two principal questions: whether the endorsement unambiguously excluded the accident and, if so, whether that vehicle-based exclusion was enforceable under Delaware law.

Summary of the Opinion

The Supreme Court reached three central conclusions:

  1. No implied business-use restriction existed. The endorsement did not limit coverage to business activity, and the commercial character of the underlying policy could not supply language that Travelers had omitted.
  2. The endorsement’s ownership exception was unambiguous. Read grammatically and as part of the endorsement as a whole, Provision C excluded UIM coverage when Ayers occupied a vehicle owned by her or a family member.
  3. The exclusion was nevertheless unenforceable. Once Travelers extended UIM insured status to Ayers through the endorsement, Delaware law treated the coverage as personal to her. Travelers could not withdraw it according to the ownership of the vehicle she occupied.

The Court therefore reversed the Superior Court’s grant of summary judgment to Travelers and remanded the case for further proceedings. The decision permits Ayers to pursue UIM benefits; it does not itself determine the ultimate amount recoverable or resolve issues not addressed in the appeal.

Analysis

1. The Endorsement Controlled Over the Policy’s Commercial Context

Travelers argued that the policy’s commercial nature implied that the endorsement covered only business use. The Court rejected that position because the endorsement “does not specifically say business use.” Under Penn Mut. Life Ins. Co. v. Oglesby, when one provision would deny coverage but another provision may permit it, the latter controls, with doubt resolved against the insurer.

The ruling confirms that courts will not insert an unstated business-purpose requirement into an endorsement. If an insurer intends to limit coverage to business activity, it must express that restriction in the policy language.

2. Provision C Was Unambiguous

Delaware treats insurance policies as contracts and applies ordinary rules of contract interpretation. As stated in Monzo v. Nationwide Prop. & Cas. Ins. Co., courts begin with the policy’s language. Under Steigler v. Ins. Co. of N. Am., genuine ambiguity is construed against the insurer, but Hallowell v. State Farm requires more than mere disagreement: the language must support two or more reasonable interpretations. Alta Berkely VI C.V. v. Omneon, Inc., citing Rhone-Poulenc Basic Chem. Co. v. Am. Motorists Ins. Co., likewise establishes that opposing interpretations do not automatically create ambiguity.

Ayers argued that the ownership exception applied only when she was a pedestrian struck by a vehicle owned by her or a family member. The Court rejected that interpretation because it would leave “while occupying” without a corresponding description of the vehicle being occupied. Travelers’ interpretation gave effect to each phrase: coverage applied when the scheduled person occupied, or was struck as a pedestrian by, an automobile IES did not own, except an automobile owned by that person or a family member.

This conclusion followed the anti-surplusage principle reflected in Osborn ex rel. Osborn v. Kemp: a contract must be read as a whole so that each term has effect. Provision B reinforced the reading because it used parallel language to exclude automobiles owned by the scheduled person or a household member.

The Court also relied on the interpretive approaches found in Eden v. The Netherlands Ins. Co., Acuity v. Terra-Tek, LLC, Sayreville Seaport Assoc. Urban Renewal, L.P. v. Indian Harbor Ins. Co., and Maher v. United Ohio Ins. Co.. Those decisions disfavor interpretations that detach phrases from their natural grammatical objects or render portions of an endorsement ineffective. Under Manti Hldgs., LLC v. Authentix Acq. Co., Inc., an interpretation producing an absurd result is unreasonable.

Finally, the endorsement’s “Broadened Coverage” heading did not create an ambiguity. As Masimo Corp. v. Kiani, citing Fulkerson v. MHC Operating Ltd., explains, headings are not controlling evidence of substantive contractual meaning. The operative text governs.

3. The Vehicle-Ownership Exclusion Violated Delaware UIM Law

Although the Court accepted Travelers’ textual interpretation, it held that the resulting exclusion was unenforceable under 18 Del. C. § 3902 and Delaware public policy.

The controlling precedent was Frank v. Horizon Assurance Co.. There, an insured was injured while occupying a vehicle she owned but had not listed on the policy from which she sought UIM benefits. The insurer invoked an “other motor vehicle” exclusion. The Delaware Supreme Court invalidated the exclusion because UIM coverage is “personal to the insured and not vehicle specific.”

Frank v. Horizon Assurance Co. relied on the statutory purpose identified in State Farm Mut. Auto. Ins. Co. v. Abramowicz: protecting innocent persons from uninsured, unknown, or financially inadequate tortfeasors. Policy terms reducing coverage below the protection prescribed by § 3902 are void.

The same principle applied to Ayers. Travelers acknowledged that its endorsement added Ayers as an insured. Provision C then attempted to remove that coverage depending on which vehicle she occupied. That was a prohibited vehicle-based restriction. The rule was reinforced by:

  • Brown v. Everett, which stated that § 3902 does not permit an exclusion restricting UIM coverage according to vehicle ownership;
  • Lee v. Geico Choice Ins. Co., recognizing that Delaware UIM coverage is personal rather than vehicle-related; and
  • Davis v. State Farm Mut. Auto. Ins. Co., explaining that UIM coverage follows the insured regardless of the vehicle occupied or driven.

4. Distinguishing Bermel v. Liberty Mutual Fire Insurance Co.

Travelers relied heavily on Bermel v. Liberty Mutual Fire Insurance Co., where an employee injured in his own nonbusiness vehicle could not recover under his employer’s commercial policy. The Court held that Bermel did not control because no endorsement in that case extended UIM coverage to the employee while occupying other vehicles.

The distinction is between an initial grant of coverage and an exclusion withdrawing coverage already granted. An insurer may initially define a commercial policy’s UIM protection by reference to covered automobiles and their occupants. Delaware law does not require every employee to receive personal UIM coverage. But once an insurer expressly grants a person UIM insured status, it cannot retract that protection through an “other motor vehicle” exclusion.

Ayers therefore did not prevail merely because she owned IES or appeared on a driver list. She prevailed because she was specifically named in the schedule to an endorsement that granted her UIM insured status.

5. Standard of Review

Under Sherman v. State, the Supreme Court reviewed the summary-judgment ruling de novo. Policy interpretation and enforceability were also reviewed without deference, consistent with Cubler v. State Farm Mut. Auto. Ins. Co.. The Court therefore independently interpreted the endorsement and determined whether its exclusion complied with Delaware law.

The Rule Established

When a Delaware automobile policy or endorsement grants UIM insured status to a scheduled individual, that coverage is personal to the insured and cannot be withdrawn merely because the insured was occupying a vehicle owned by the insured or a family member. This remains true when the underlying policy is commercial and a corporation is the sole named insured.

At the same time, the decision preserves an insurer’s ability to define the initial class of insureds and covered automobiles. The critical inquiry is whether the disputed provision defines the original grant of coverage or excludes coverage previously granted.

Potential Impact

  • Commercial-policy endorsements: Insurers may need to revise “drive other car” endorsements that grant UIM status to scheduled persons while excluding their own vehicles.
  • Corporate officers and owners: Individuals scheduled under commercial endorsements may receive personal UIM protection even during nonbusiness travel.
  • Coverage analysis: Courts must first identify whether insured status was affirmatively granted and then determine whether a later condition unlawfully withdraws it.
  • No broad employee-coverage mandate: The decision does not overrule Bermel v. Liberty Mutual Fire Insurance Co. or require commercial policies to cover every employee outside a covered vehicle.
  • Drafting clarity: Commercial context, policy headings, and general purpose cannot substitute for express operative language.

Complex Concepts Simplified

Underinsured-motorist coverage
Insurance protecting an insured when the at-fault driver has liability insurance, but not enough to compensate the insured fully.
Named insured versus scheduled insured
A named insured is identified as the principal insured on the policy. A scheduled insured is added through a list or endorsement. This decision establishes that the relevant protection does not depend solely on being the policy’s principal named insured once UIM insured status has otherwise been granted.
Other motor vehicle exclusion
A clause denying coverage because an insured was occupying another vehicle—often one owned by the insured but not listed on the policy. Delaware generally invalidates such clauses when they withdraw UIM coverage already granted to the person.
Personal rather than vehicle-specific coverage
UIM protection follows the insured person. Once granted, it ordinarily does not disappear merely because the insured changes vehicles.
De novo review
The appellate court decides the legal question independently, without deferring to the trial court’s interpretation.
Void as against public policy
A term may be grammatically clear yet legally unenforceable because it conflicts with a statute or the protective policy underlying that statute.

Conclusion

Natalie Ayers v. Travelers Casualty Insurance Company draws a decisive line between defining UIM coverage initially and withdrawing coverage after granting it. Travelers’ endorsement clearly excluded Ayers while she occupied her own vehicle, but that clarity could not save the exclusion from Delaware’s rule that UIM coverage is personal to an insured.

The opinion extends the practical force of Frank v. Horizon Assurance Co. to persons expressly insured through commercial-policy endorsements. Its central lesson is that an insurer may choose whom to insure, but once it grants an individual UIM coverage, it may not condition that protection on vehicle ownership in a manner inconsistent with 18 Del. C. § 3902.