Commercial Auto
Covers business-owned vehicles, fleets, and hired/non-owned auto exposures — including liability, physical damage, motor carrier filings, and MCS-90 endorsement obligations.
Playbook Overview
- Category
- Property & Casualty
- Common Letter Types
- acknowledgmentreservation of rightscoverage investigationpartial denialfull denialpaymentsubrogationstatusclosing
- High Complexity Jurisdictions
- californianew yorktexas
Commercial auto claims differ from personal auto in scope, exposure, and regulatory overlay. Correspondence routinely coordinates with DOT filings, motor-carrier endorsements, and contractual indemnity between named insureds, permissive users, and hired/non-owned operators.
Jurisdiction Comparison Matrix
Acknowledgment, accept/deny, and payment deadlines alongside the ucpa applies rule for each state. Click a column header to sort; click a state to see full requirements.
50 of 50 states
| Alabama(AL) | 15 calendar days | 30 calendar days | 30 calendar days | Yes | High |
| Alaska(AK) | 10 business days | 15 business days | 30 business days | Yes | High |
| Arizona(AZ) | 10 business days | 15 business days | 30 calendar days | Yes | High |
| Arkansas(AR) | 15 business days | 15 business days | 10 business days | Yes | High |
| California(CA) | 15 calendar days | 40 calendar days | 30 calendar days | YES; 10 CCR § 2695.1(b) states the Fair Claims Settlement Practices Regulations apply to all claims subject to Cal. Ins. Code § 790, without a blanket exemption for commercial auto. | High |
| Colorado(CO) | Reasonable time (no specific number) | 60 calendar days | 60 calendar days | Yes | Medium |
| Connecticut(CT) | Reasonable time (no specific number) | Reasonable time (no specific number) | 30 calendar days | Yes | Medium |
| Delaware(DE) | 15 business days | 30 calendar days | 30 calendar days | Yes | High |
| Florida(FL) | 7 calendar days | 60 calendar days | 60 calendar days | Yes | High |
| Georgia(GA) | 15 calendar days | 15 calendar days after receiving proof of loss, or 30 calendar days from notice of claim if no proof of loss is required; 60 calendar days absolute maximum (Ga. Comp. R. & Regs. 120-2-52-.03(3) & (5)) | 10 calendar days | Yes | Medium |
| Hawaii(HI) | 15 business days | Reasonable time (no specific number) | 30 calendar days | Yes | Medium |
| Idaho(ID) | Reasonable time (no specific number) | Reasonable time (no specific number) | 30 calendar days | Yes | Medium |
| Illinois(IL) | 15 business days | Reasonable time (no specific number) | 30 calendar days | Yes | Medium |
| Indiana(IN) | Promptly (no specific number) | Reasonable time (no specific number) | Promptly (no specific number) | Yes | Medium |
| Iowa(IA) | 15 calendar days | C30 (extendable with notice within the 30-day period) | 30 calendar days | Yes | High |
| Kansas(KS) | 10 business days | 15 business days | Promptly (no specific number) | Yes | High |
| Kentucky(KY) | 15 | Reasonable time (no specific number) | 30 calendar days | Yes | High |
| Louisiana(LA) | 14 calendar days | REASONABLE (written offer to settle within C30 after receipt of satisfactory proofs of loss) | C30 (C60 for catastrophic residential property claims) | Yes | High |
| Maine(ME) | Reasonable time (no specific number) | Reasonable time (no specific number) | C30 (for non-fire property claims after proof of loss is received); C60 (for fire policies after proof of loss is received and ascertainment of the loss is made) | Yes | Medium |
| Maryland(MD) | 15 business days | 15 business days | Promptly (no specific number) | Yes | High |
| Massachusetts(MA) | REASONABLE (Reasonably promptly per Mass. Gen. Laws ch. 176D, § 3(9)(b)) | REASONABLE (Within a reasonable time after proof of loss per Mass. Gen. Laws ch. 176D, § 3(9)(e); 15 days to notify intention to rebuild/repair per Mass. Gen. Laws ch. 175, § 99) | C30 (Within 30 days after statement of loss or executed proof of loss per Mass. Gen. Laws ch. 175, § 99) | Yes | Medium |
| Michigan(MI) | Promptly (no specific number) | Reasonable time (no specific number) | 60 calendar days | Yes | Medium |
| Minnesota(MN) | 10 business days | B60 (after proof of loss) / B30 (after notification of claim, unless delayed and properly noticed) | B5 (from settlement agreement receipt or condition performance); C60 (after proof of loss and ascertainment under Standard Fire Policy) | Yes | High |
| Mississippi(MS) | Promptly (no specific number) | REASONABLE (case law) | REASONABLE (case law) | No specific statutory or regulatory requirement found | Medium |
| Missouri(MO) | 10 business days | 15 business days | Promptly (no specific number) | Yes | High |
| Montana(MT) | Reasonable time (no specific number) | 30 calendar days to pay or discharge any duty, extendable to 60 calendar days with reasonable request for additional information; interest accrues after the 30/60 day period (Mont. Code Ann. § 33-18-232(1)). Must affirm or deny within a reasonable time (§ 33-18-201(5)). | C30 (extendable to C60 if additional information was requested) | Yes | High |
| Nebraska(NE) | 15 calendar days | 15 calendar days | 15 calendar days | Yes | High |
| Nevada(NV) | 20 business days | 30 business days | 30 calendar days | Yes | High |
| New Hampshire(NH) | 10 business days | No strict deadline; must decide within 5 working days of receiving requested documentation or send a delay letter (N.H. Admin. Code Ins 1002.05(d)-(e)) | 5 business days | Yes | High |
| New Jersey(NJ) | 10 business days | 30 calendar days | 10 business days | YES (with exemptions for large commercial risks under N.J.A.C. 11:2-17.2, though auto physical damage rules under N.J.A.C. 11:3-10.1 apply generally) | High |
| New Mexico(NM) | Reasonable time (no specific number) | Reasonable time (no specific number) | Promptly (no specific number) | Yes | Medium |
| New York(NY) | 15 business days | 15 business days | 5 business days | Yes | High |
| North Carolina(NC) | 30 calendar days | Reasonable time (no specific number) | 60 calendar days | Yes | Medium |
| North Dakota(ND) | Reasonable time (no specific number) | Reasonable time (no specific number) | Promptly (no specific number) | Yes | Medium |
| Ohio(OH) | 15 calendar days | 21 calendar days | 10 calendar days | Yes | High |
| Oklahoma(OK) | 30 calendar days | 60 calendar days | No specific statutory or regulatory requirement found | Yes | Medium |
| Oregon(OR) | 30 calendar days | 30 calendar days | No specific statutory or regulatory requirement found | Yes | High |
| Pennsylvania(PA) | 10 business days | 15 business days | No specific statutory or regulatory requirement found | Yes | High |
| Rhode Island(RI) | 15 calendar days | 21 calendar days | 30 calendar days | Yes | High |
| South Carolina(SC) | Promptly (no specific number) | Promptly (no specific number) | 90 calendar days | Yes | Medium |
| South Dakota(SD) | C30 (SDCL § 58-33-67(1)); PROMPTLY (SDCL § 58-12-34(2)); C15 to provide forms (SDCL § 58-12-34(13)) | REASONABLE (SDCL § 58-12-34(7)) | PROMPTLY (SDCL § 58-12-34(4)) | Yes | Medium |
| Tennessee(TN) | 30 calendar days | 60 calendar days | 30 calendar days | Yes | Medium |
| Texas(TX) | C15 (B15 presumed reasonably prompt under 28 TAC § 21.203(2)) | B15 (extendable to C45 with notice) | 5 business days | Yes | High |
| Utah(UT) | 15 calendar days | 30 calendar days | 30 calendar days | Yes | High |
| Vermont(VT) | 10 business days | 15 business days | B10 (C60 for fire insurance) | Yes | High |
| Virginia(VA) | 15 calendar days | C15 (extendable with notice) | Promptly (no specific number) | Yes | High |
| Washington(WA) | 10 business days | 15 business days | 15 business days | Yes | High |
| West Virginia(WV) | 15 business days | 10 business days | 15 business days | Yes | High |
| Wisconsin(WI) | 10 calendar days | Reasonable time (no specific number) | 30 calendar days | Yes | High |
| Wyoming(WY) | Promptly (no specific number) | 45 calendar days | 45 calendar days | Yes | Medium |
Commercial Auto Case Law
Recent and frequently cited commercial auto decisions across the 50 states. State abbreviation appears after each case name — follow through to a jurisdiction page for the full list.
- Case Law
Griffin v. Trumbull Ins. Co., 509 Mich. 484 (MI)
983 N.W.2d 760 (2022)
Status UpdatesCommercial AutoHeld that lower-priority insurers under the Michigan No-Fault Act have an affirmative obligation to act diligently in deciding how to resolve a claim and to "inform the claimant of that decision in a timely manner," penalizing insurers who leave claimants in limbo under the guise of an ongoing investigation. Current Status: Good law.
- Case Law
Pinto v. Farmers Insurance Exchange (CA)
61 Cal. App. 5th 676 (2021)
Bad FaithDuty to DefendAutoCommercial AutoCyberGeneral LiabilityInland / Ocean MarineProfessional LiabilityClarified the third-party failure-to-settle standard. Rejecting a strict liability approach, the court held that failing to accept a reasonable settlement demand within limits is not bad faith per se. The plaintiff must explicitly prove that the insurer's failure to settle was unreasonable under the circumstances .
- Reservation of RightsCommercial AutoHomeownersInland / Ocean MarineProfessional Liability
the court ruled that the "mere possibility" of a conflict is insufficient; the conflict must be significant and actual, and the coverage issue must be capable of being controlled by the appointed defense counsel in the underlying litigation .
- Case Law
Harleysville Grp. Ins. v. Heritage Communities, Inc., 420 S.C. 321 (SC)
803 S.E.2d 288 (2017)
Status UpdatesCommercial AutoInsurers have a "high fiduciary duty" when taking on the defense of an insured. A generic, cut-and-paste reservation of rights letter is insufficient and waives coverage defenses.
- Case LawDiminished ValueAutoCommercial Auto
the court recognized that applying the strict Johnson rule to an appreciating asset (in that case, a rare Ford GT sports car) would fail to make the plaintiff whole . Thus, if a vehicle appreciates in market value from the time of its acquisition, a third-party recovery of both repair costs and proven diminished value is permitted .
- Case Law
Elacqua v. Physicians' Reciprocal Insurers (NY)
21 A.D.3d 702 (2005)
Duty to DefendReservation of RightsCommercial AutoProfessional LiabilityAn insurer has an affirmative obligation to inform the insured of their right to select independent counsel at the insurer's expense when a conflict of interest exists.
Show 6 more cases
- Case Law
State Farm Mut. Auto. Ins. Co. v. Campbell (CA)
538 U.S. 408 (2003)
Bad FaithAutoCommercial AutoWorkers' CompIn this landmark third-party bad faith case arising from an auto accident, the Utah Supreme Court upheld liability against an insurer for failing to settle a third-party claim within the $50,000 policy limits when there was a substantial likelihood of an excess judgment against the insured.
- Case Law
Skaling v. Aetna Insurance Co (RI)
799 A.2d 997 (2002)
Bad FaithStatus UpdatesCommercial AutoHomeownersthe Rhode Island Supreme Court refined this standard. The Court held that an insurer must be able to show that the claim was fairly debatable and that the claim was evaluated in an appropriate and timely manner .
- Case Law
Chateau Chamberay Homeowners Assn. v. Associated Internat. Ins. Co (CA)
90 Cal. App. 4th 335 (2001)
Bad FaithAutoCommercial AutoCommercial PropertyGeneral LiabilityHomeownersSolidified the "genuine dispute doctrine" as applied to factual disagreements (such as differing expert opinions). The court held that an insurer denying or delaying payment due to the existence of a genuine, objectively reasonable dispute over coverage liability or valuation is not liable for bad faith.
- Case LawReservation of RightsCommercial AutoGeneral LiabilityHomeownersInland / Ocean MarineProfessional Liability
25 Cal.4th 489, the Court held that an insurer may fund a settlement of a potentially uncovered claim and later seek reimbursement from the insured. To do so, the insurer must not only have an initial ROR, but must explicitly notify the insured of the intent to accept the settlement and offer the insured the opportunity to assume their own defense .
- Case Law
Mesmer v. Maryland Auto. Ins. Fund, 353 Md. 241 (MD)
725 A.2d 1053 (1999)
Status UpdatesCommercial AutoClarified the dichotomy in Maryland insurance law, holding that third-party claims allow for a tort action for bad faith failure to settle due to the insurer's exclusive control of the defense, whereas first-party claims are strictly contractual and do not give rise to a common law tort of bad faith. Current Status: Good law; routinely cited to distinguish first-party and third-party obligations...
- Case Law
Asermely v. Allstate Insurance Co (RI)
728 A.2d 461 (1999)
Bad FaithStatus UpdatesCommercial AutoCommercial PropertyHomeownersthe Rhode Island Supreme Court established a groundbreaking rule regarding an insurer's fiduciary duty to settle . The Court declared that "an insurance company has a fiduciary obligation to act in the 'best interests of its insured in order to protect the insured from excess liability'" .
Historical court cases are for reference only and may be superseded, distinguished, or abrogated.
Applicable Letter Templates
- Coverage Investigationreservation of rights
- FNOL / Intakeacknowledgment
- Coverage Investigationstatus
- Denial / Closurefull denial
- Denial / Closurepartial denial
- Payment & Settlementpayment
- Coverage Investigationcoverage investigation
- Coverage Investigationreservation of rights
