12.5 Commercial Auto Endorsements

Filling the Built-In Gaps

The BACF intentionally leaves gaps that endorsements close. The most tested endorsements:

• Hired Auto Coverage (Symbol 8 / endorsement) — liability for autos the insured rents, leases, or borrows. Hired-auto PHYSICAL DAMAGE is added separately because Symbol 8 alone gives liability only.
• Non-Owned Auto (Symbol 9 / endorsement) — liability for employee/partner personal autos used in the business; protects the EMPLOYER, not the employee.
• Drive Other Car — Broadened Coverage for Named Individuals (CA 99 10) — extends liability, medical payments, UM/UIM, and physical damage to NAMED individuals driving non-owned private passenger autos. Classic use: a corporate officer who drives only a company car and has no personal auto policy of their own.
• Individual Named Insured (CA 99 17) — when the named insured is an individual (sole proprietor), this broadens the policy to provide personal-auto-type protections, including coverage for the individual and family members.

Hired Auto Physical Damage in Detail

Symbol 8 grants LIABILITY for hired autos but no physical damage. To cover damage to a rented truck, the insured adds Hired Auto Physical Damage (often via CA 99 54 or by entering the hired-auto symbol on the physical damage line). Coverage is usually the lesser of the auto's ACV, the cost to repair, or a stated per-auto limit, minus a deductible. This closes the gap a business faces when its rental agreement makes it responsible for damage to the rented vehicle — a frequent real-world claim.

Additional Common Endorsements

Exam trap: The base BACF EXCLUDES pollution arising from cargo and from pollutants not in the auto's normal operating system. CA 99 48 only restores LIMITED pollution coverage — it is not a full environmental policy.

Experience and Schedule Rating

Commercial auto premiums are adjusted from manual rates by rating plans:

• Schedule rating — debits or credits for risk characteristics (driver training, fleet maintenance, telematics) within a filed range.
• Experience rating — applies an experience modification factor (mod) built from the insured's prior loss experience versus the class average. A mod of 1.00 is average; below 1.00 is a credit (better-than-average losses); above 1.00 is a debit (worse-than-average losses).

Worked experience-mod example: A trucking fleet's manual premium is $80,000 and its experience mod is 0.85. Modified premium = $80,000 × 0.85 = $68,000 — a $12,000 credit for good loss history. If the mod were 1.20, modified premium = $80,000 × 1.20 = $96,000, a $16,000 surcharge.

When to Use Which Endorsement — Quick Reference

• Owner of a company car with NO personal auto policy → Drive Other Car (CA 99 10).
• Business rents trucks and wants damage to the rental covered → Hired Auto Physical Damage endorsement.
• Sole proprietor wants personal-auto-style protection on the commercial policy → Individual Named Insured (CA 99 17).
• Concern about fuel/lubricant pollution from an overturned truck → CA 99 48.

Additional Insured and Waiver Endorsements

Commercial contracts frequently require a business to name a customer as an additional insured on its auto policy. ISO provides forms such as CA 20 48 (Designated Insured) to add a person or organization as an insured for liability arising from the named insured's covered autos. A related contractual requirement is a Waiver of Transfer of Rights of Recovery (waiver of subrogation), which prevents the insurer from subrogating against a named party after paying a loss. Both respond to lease and service-contract demands and are common real-world endorsements.

Drive Other Car vs. Individual Named Insured

These two are easily confused. Drive Other Car (CA 99 10) is for a person who has NO personal auto policy and needs personal-style protection while using non-owned autos — it is scheduled to NAMED individuals. Individual Named Insured (CA 99 17) applies when the policy's named insured is itself an INDIVIDUAL (a sole proprietor) and broadens that policy to add family/personal protections. Match the fact pattern to the right form: a corporate officer with no personal policy → DOC; a sole proprietor wanting personal coverage on the business policy → Individual Named Insured.

Commercial Auto Endorsements and the Hired/Non-Owned Gap

The BACF is shaped by endorsements that the exam tests as gap-fillers. Hired Auto coverage applies to autos the insured leases, hires, rents, or borrows (symbol 8); Non-Owned Auto coverage applies to autos owned by employees or others used in the insured's business (symbol 9). Together they close the exposure created when employees run errands in their own cars, and they are commonly added to a business that owns few or no vehicles. The Drive Other Car (DOC) endorsement protects an executive who has no personal auto policy when driving a non-owned car, supplying the personal-style coverages the commercial form omits.

Other frequently added endorsements include Mobile Equipment clarifications (drawing the line between equipment covered under the CGL and licensed autos covered under the BACF), the Pollution Liability - Broadened Coverage for Covered Autos endorsement, and the Lessor - Additional Insured and Loss Payee endorsement that protects a leasing company's interest. For trucking risks, the federally mandated MCS-90 endorsement guarantees public payment for BI/PD up to the federal minimum even when a policy exclusion would otherwise bar coverage, then lets the insurer recover from the insured.

Matching the endorsement to the gap it fills, especially the hired-and-non-owned pairing, is the practical exam skill.