Coverage description
An Insurance Services Office (ISO) standard form. It excludes auto liability for bodily injury or property damage caused by the explosion of explosives you make, sell or transport.
How the form has changed
The 10 13 edition updates the coverage forms it applies to and the name of the liability coverage. The coverage wording is the same as 12 93.
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 10 13Oct 2013Latest | 222 | 111 | 34 | Nov 2021 to Aug 2026 |
| 12 93Dec 1993 | 9 | 8 | 6 | Jun 2022 to Jan 2026 |
What the filings show
- Edition in use: in the past 12 months, 54 companies filed the 10 13 edition and 1 company filed 12 93.
- CA 99 44 (Loss Payable Clause) is filed alongside it most often, in 218 of the same filings (94%).
Filed under
Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Aug 2026, excluding withdrawn and rejected filings. One filing can cover several affiliated companies.
Carriers filing this form
The 10 carrier groups with the most filings that include CA 23 01, out of 60 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Cincinnati Financial Group3 group companies filed it, led by The Cincinnati Casualty Company and The Cincinnati Indemnity Company | 17 | 15 | 10 1312 93 | Jul 12, 2024 |
| Tokio Marine Holdings Incorporated Group2 group companies filed it, led by U.S. Specialty Insurance Company and Safety National Casualty Corporation | 17 | 13 | 10 13 | Feb 17, 2026 |
| Arch Insurance Group3 group companies filed it, led by Arch Indemnity Insurance Company and Arch Insurance Company | 14 | 2 | 10 13 | Apr 8, 2026 |
| MS & AD Insurance Group3 group companies filed it, led by Transverse Insurance Company and Mitsui Sumitomo Insurance Company of America | 13 | 6 | 10 13 | Sep 4, 2025 |
| OLD Republic Group4 group companies filed it, led by BITCO General Insurance Corporation and BITCO National Insurance Company | 13 | 1 | 10 13 | May 11, 2026 |
| Berkshire Hathaway Group9 group companies filed it, led by GEICO General Insurance Company and GEICO Marine Insurance Company | 10 | 6 | 10 13 | Jul 9, 2026 |
| Liberty Mutual GroupState Automobile Mutual Insurance Company | 10 | 1 | 10 13 | Jun 17, 2026 |
| Scor GroupGeneral Security National Insurance Company | 10 | 1 | 10 13 | Jun 9, 2026 |
| Markel Corporation Group3 group companies filed it, led by State National Insurance Company, Inc. and Markel Insurance Company | 8 | 4 | 10 13 | Jun 24, 2024 |
| Ambac Financial GroupEverspan Insurance Company | 7 | 5 | 10 13 | Apr 28, 2025 |
How the largest insurers handle CA 23 01
Groups among the largest commercial auto insurers that filed CA 23 01 or their own version in the past five years.
- Progressive GroupUses CA 23 01 in 2 filings
- Travelers GroupUses CA 23 01 in 62 filings
- Berkshire Hathaway GroupUses CA 23 01 in 3 filings
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States
Number of filings that include CA 23 01 in each state, Oct 2021 to Aug 2026. Darker states have more filings.
Often filed with
Standard-style form numbers that appear in the same filings most often.
- CA 99 44Loss Payable Clause218 filings
- CA 20 48Designated Insured for Covered Autos Liability Coverage212 filings
- CA 23 05Wrong Delivery of Liquid Products210 filings
- CA 23 94Silica or Silica- Related Dust Exclusion for Covered Autos Exposure208 filings
- CA 99 23Rental Reimbursement Coverage207 filings
- CA 99 47Employee as Lessor207 filings
- CA 20 18Professional Services Not Covered205 filings
- CA 99 33Employees as Insureds205 filings
- CA 23 04Rolling Stores202 filings
- CA 99 30Tapes, Records and Discs Coverage200 filings
Recent filings
Latest filings that include this form number. Filed copies open in FilingFocus.
| Submitted | Company | State | Editions | Tracking number |
|---|---|---|---|---|
| Aug 28, 2026 | Jet Insurance Company | SC | 10 13 | MRTN-134878222 |
| Jul 9, 2026 | GEICO County Mutual Insurance Company | TX | 10 13 | GECC-135011334 |
| Jul 8, 2026 | Colorado Farm Bureau Insurance Company | CO | 10 13 | SFBC-135011078 |
| Jul 6, 2026 | GEICO Advantage Insurance Companyand 7 more | CO | 10 13 | GECC-135002717 |
| Jun 26, 2026 | Grange Insurance Association | CO | 10 13 | GRIA-135000193 |
| Jun 25, 2026 | Selective Insurance Company of Americaand 3 more | CO | 10 13 | SELC-134998854 |
| Jun 24, 2026 | Great American Alliance Insurance Companyand 3 more | CO | 10 13 | GACX-134993563 |
| Jun 19, 2026 | Addison Insurance Companyand 1 more | CO | 10 13 | UNFG-134905846 |
| Jun 18, 2026 | Atlantic Specialty Insurance Company | SC | 10 13 | BEAC-134983501 |
| Jun 18, 2026 | Sompo America Fire and Marine Insurance Companyand 1 more | CO | 10 13 | SMPJ-134972831 |
| Jun 17, 2026 | State Automobile Mutual Insurance Company | CO | 10 13 | STAT-134983292 |
| Jun 17, 2026 | State Automobile Mutual Insurance Company | CO | 10 13 | STAT-134983865 |
Most filed ISO CA forms
- CA DS 03 Business Auto Declarations
- CA DS 21 Motor Carrier Declarations
- CA 00 01 Business Auto Coverage Form
- CA 28 03 Abuse Or Molestation Exclusion For Covered Autos Liability Exposure
- CA 23 17 Truckers - Uniform Intermodal Interchange Endorsement Form UIIE - 1
- CA 04 43 Waiver Of Transfer Of Rights Of Recovery Against Others To Us (Waiver Of Subrogation) - Automatic When Required By Written Contract Or Agreement
- CA 04 44 Waiver Of Transfer Of Rights Of Recovery Against Others To Us (Waiver Of Subrogation)
- CA 04 49 Primary and Noncontributory - Other Insurance Condition
- CA 20 01 Lessor - Additional Insured And Loss Payee
- CA 20 48 Designated Insured For Covered Autos Liability Coverage
- CA 00 20 Motor Carrier Coverage Form
- CA 20 71 Auto Loan/Lease Gap Coverage
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