Coverage description
An Insurance Services Office (ISO) standard form. It excludes amphibious vehicles, their ownership, maintenance or use, and property carried in them, but only while the vehicle is being launched into, used in or beached from the water.
How the form has changed
The 10 13 edition updates the coverage forms it applies to and rewords the exclusion. The coverage is the same.
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 | 194 | 106 | 30 | Nov 2021 to Aug 2026 |
| 03 10Mar 2010 | 7 | 5 | 4 | Jun 2022 to Jan 2026 |
What the filings show
- Edition in use: in the past 12 months, 43 companies filed the 10 13 edition and 1 company filed 03 10.
- CA 99 44 (Loss Payable Clause) is filed alongside it most often, in 197 of the same filings (98%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Aug 2026, excluding withdrawn and rejected filings.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 97, out of 53 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Tokio Marine Holdings Incorporated Group2 group companies filed it, led by U.S. Specialty Insurance Company and Safety National Casualty Corporation | 18 | 14 | 10 13 | Feb 17, 2026 |
| Cincinnati Financial Group3 group companies filed it, led by The Cincinnati Casualty Company and The Cincinnati Indemnity Company | 17 | 16 | 10 13 | Jul 12, 2024 |
| Arch Insurance Group3 group companies filed it, led by Arch Indemnity Insurance Company and Arch Insurance Company | 14 | 2 | 10 13 | Apr 8, 2026 |
| 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 |
| 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 |
| Southern Farm Bureau CAS Group3 group companies filed it, led by Colorado Farm Bureau Insurance Company and Southern Farm Bureau Casualty Insurance Company | 7 | 4 | 10 13 | Jul 8, 2026 |
| Ambac Financial GroupEverspan Insurance Company | 6 | 4 | 10 13 | Apr 28, 2025 |
| Clear Blue Financial Group2 group companies filed it, led by Clear Blue Insurance Company and Rock Ridge Insurance Company | 6 | 3 | 10 13 | Oct 29, 2025 |
| Group 1001 Insurance Holdings GroupCLEAR SPRING PROPERTY AND CASUALTY COMPANY | 6 | 2 | 10 13 | Mar 18, 2026 |
How the largest insurers handle CA 23 97
Groups among the largest commercial auto insurers that filed CA 23 97 or their own version in the past five years.
- Progressive GroupUses CA 23 97 in 2 filings
- Travelers GroupUses CA 23 97 in 64 filings
- Berkshire Hathaway GroupFiles its own version: M-4766 Amphibious Vehicles (15 states)
See more forms
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States
Number of filings that include CA 23 97 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 Clause197 filings
- CA 99 23Rental Reimbursement Coverage196 filings
- CA 20 48Designated Insured for Covered Autos Liability Coverage193 filings
- CA 99 33Employees as Insureds193 filings
- CA 99 47Employee as Lessor193 filings
- CA 20 18Professional Services Not Covered191 filings
- CA 04 45Golf Carts and Low- Speed Vehicles189 filings
- CA 20 27Registration Plates Not Issued for a Specific Auto189 filings
- CA 23 01Explosives188 filings
- CA 23 03Multipurpose Equipment188 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 8, 2026 | Colorado Farm Bureau Insurance Company | CO | 10 13 | SFBC-135011078 |
| 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-134983865 |
| Jun 9, 2026 | General Security National Insurance Company | CO | 10 13 | PERR-134978283 |
| Jun 9, 2026 | General Security National Insurance Company | CO | 10 13 | PERR-134978297 |
| Jun 5, 2026 | Incline Casualty Company | SC | 10 13 | MRTN-134969595 |
| May 21, 2026 | Jet Insurance Company | NM | 10 13 | MRTN-134878221 |
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
See more carrier forms
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