12.2 Commercial Auto Liability and Physical Damage
Key Takeaways
- Commercial auto liability covers BI and PD from ownership, maintenance, or use of a covered auto and is usually written on a Combined Single Limit.
- Under split limits, apply the per-person cap first, then the per-accident BI cap, then the separate PD limit.
- Physical damage has three parts: Comprehensive, Specified Causes of Loss (named-peril), and Collision.
- Physical damage settles at the lesser of ACV or repair cost minus the deductible; ACV = replacement cost minus depreciation.
- Comprehensive and collision carry separate deductibles; glass, animal strikes, and falling objects may be claimed under comprehensive.
Section II — Covered Autos Liability
Commercial auto liability pays sums the insured legally must pay as damages for bodily injury (BI) or property damage (PD) caused by an accident and resulting from ownership, maintenance, or use of a covered auto. It also covers covered pollution cost or expense and includes a duty to defend.
Most BAPs are written with a Combined Single Limit (CSL) — one limit per accident covering both BI and PD together. This contrasts with the split limits common on personal auto policies.
Split Limits vs. Combined Single Limit — Worked Example
Suppose a fleet policy carries split limits of 100/300/50 (in thousands): $100,000 per person BI, $300,000 per accident BI, $50,000 PD. A covered truck injures two people ($150,000 and $80,000) and causes $70,000 PD.
- Person 1 BI: limited to $100,000 (per-person cap)
- Person 2 BI: $80,000 (within $100,000)
- Per-accident BI test: $100,000 + $80,000 = $180,000, under the $300,000 cap — OK
- PD: limited to $50,000 (loss was $70,000)
- Insurer pays $100,000 + $80,000 + $50,000 = $230,000. The insured absorbs $50,000 + $20,000 = $70,000.
Now assume a $300,000 CSL for the identical loss (total demand $300,000). The CSL pays the entire $300,000 with no separate per-person or PD sub-cap. This is why CSL is generally more favorable for commercial risks.
Physical Damage: Comprehensive vs. Collision vs. Specified Causes
Commercial-auto physical damage mirrors personal lines. Collision covers upset or impact with another object. Comprehensive (Other Than Collision) covers everything else — fire, theft, glass breakage, hail, falling objects, contact with an animal. A cheaper Specified Causes of Loss option covers only a named list (fire, lightning, explosion, theft, windstorm, hail, flood, mischief, vehicle in transit) and excludes, for example, hitting a deer's carcass debris that is not "contact with an animal."
Towing, Rental Reimbursement, and Limits
Physical damage settles at the lesser of ACV or cost to repair, less the deductible. Endorsements add Towing and Labor, Rental Reimbursement / Transportation Expense, and Hired Auto Physical Damage. The liability limit is typically a combined single limit (CSL) per accident covering both BI and PD, unlike split personal-auto limits. A worked point: a fleet's $5,000-deductible comprehensive claim for a $30,000 truck destroyed by fire pays ACV minus $5,000, and if the truck is leased, the lessor is usually an additional insured/loss payee.
Pollution and the Covered Pollution Cost
Business auto liability includes a narrow covered pollution cost or expense — pollution that results from a covered auto accident involving the auto's own fuel/fluids, but excludes pollution from cargo being transported (that needs separate pollution coverage or the MCS-90 for public protection). This distinction — fuel-system pollution covered, cargo pollution excluded — is a frequent commercial-auto exam point that connects physical-damage and liability concepts.
Under split limits of 100/300/50, one covered auto accident injures three people ($90,000, $90,000, and $90,000 BI) with no property damage. How much does the insurer pay?
Who Is an Insured
For liability, insureds include the named insured for any covered auto and anyone using a covered auto the named insured owns, hires, or borrows with permission. Important exclusions from the permissive-user grant: the owner of a hired/borrowed auto (or their employee), and employees using their own autos (those need Symbol 9 + the individual named insured / employees-as-insureds endorsement). Partnerships/LLC members are insureds only for autos they do not own personally.
Supplementary payments under Section II are paid in addition to the limit: all defense costs, up to $2,000 for bail bonds, the cost of bonds to release attachments, reasonable expenses incurred by the insured at the insurer's request (including up to $250/day for lost earnings), and post-judgment interest. These do not erode the liability limit, a frequently tested point.
Exclusions to Watch
Key liability exclusions on the Business Auto Coverage Form include: expected or intended injury; contractual liability beyond an 'insured contract'; workers compensation and employer's-liability injury to employees; fellow-employee injury; care, custody, or control of property (handled by garagekeepers, not the BAP); pollution (except 'covered pollution cost'); handling of property before/after the covered auto moves it; and operations involving certain mobile equipment.
Memorizing the fellow-employee and care-custody-control exclusions resolves many tricky exam scenarios where a CGL or workers compensation policy is the correct responding form, not the BAP.
Section III — Physical Damage
Physical damage offers three building blocks:
- Comprehensive — all direct loss EXCEPT collision and overturn (covers fire, theft, glass, hail, flood, vandalism, animal strikes).
- Specified Causes of Loss — narrower/cheaper named-peril alternative to comprehensive: fire, lightning, explosion, theft, windstorm, hail, earthquake, flood, mischief, vandalism, and vehicle sinking/derailment.
- Collision — impact with another object or overturn.
Glass breakage, hitting a bird/animal, and falling objects may be treated as comprehensive rather than collision at the insured's option (avoids the collision deductible).
Physical Damage Valuation and ACV
BAP physical damage is settled at the lesser of actual cash value (ACV) or the cost to repair/replace, minus the deductible. ACV = replacement cost minus depreciation.
Worked ACV example: A box truck has a replacement cost of $60,000 and is 40% depreciated, so ACV = $60,000 x (1 - 0.40) = $36,000. After a total-loss collision with a $1,000 deductible, the insurer pays $36,000 - $1,000 = $35,000. Comprehensive and collision carry separate deductibles; a single event causing both (e.g., theft then collision) can trigger only the applicable deductible per coverage.
A covered auto with a replacement cost of $50,000 is 30% depreciated and suffers a total collision loss. The collision deductible is $2,000. What does the BAP pay?