Coverage description
An Insurance Services Office (ISO) standard form. It expands the definition of customer's auto for garagekeepers coverage to include watercraft, so customers' boats in your possession for service, repair, storage or safekeeping are covered like land vehicles.
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 11 20Nov 2020Latest | 222 | 124 | 44 | Nov 2021 to Sep 2026 |
3 other edition dates appear in one or two filings each, often carrier-specific versions: 01 20, 10 13, 11 00.
What the filings show
- Edition in use: in the past 12 months, 39 companies filed the 11 20 edition.
- CA 00 01 (Business Auto Coverage Form) is filed alongside it most often, in 197 of the same filings (88%).
Filed under
Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Sep 2026, excluding withdrawn and rejected filings.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 04 15, out of 52 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Berkshire Hathaway Group5 group companies filed it, led by National Liability and Fire Insurance Company and National Indemnity Company | 44 | 42 | 11 2011 0001 20 | Jan 21, 2026 |
| Nationwide Corporation Group11 group companies filed it, led by Nationwide Agribusiness Insurance Company and Allied Insurance Company of America | 14 | 5 | 11 20 | Sep 22, 2025 |
| Western National Mutual Group4 group companies filed it, led by Western National Assurance Company and Western National Mutual Insurance Company | 14 | 14 | 11 20 | Jan 24, 2024 |
| Arch Insurance Group3 group companies filed it, led by Arch Insurance Company and Arch Indemnity Insurance Company | 13 | 2 | 11 20 | Apr 8, 2026 |
| OLD Republic Group4 group companies filed it, led by BITCO General Insurance Corporation and BITCO National Insurance Company | 13 | 1 | 11 20 | May 11, 2026 |
| Scor GroupGeneral Security National Insurance Company | 10 | 1 | 11 20 | Jun 9, 2026 |
| Clear Blue Financial Group2 group companies filed it, led by Clear Blue Insurance Company and Rock Ridge Insurance Company | 9 | 2 | 11 20 | Oct 29, 2025 |
| Liberty Mutual Group6 group companies filed it, led by Employers Insurance Company of Wausau and LM Insurance Corporation | 7 | 5 | 11 20 | Jul 1, 2026 |
| 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 | 11 20 | Jul 8, 2026 |
| Tokio Marine Holdings Incorporated Group2 group companies filed it, led by Safety National Casualty Corporation and Philadelphia Indemnity Insurance Company | 7 | 3 | 11 20 | Aug 27, 2026 |
How the largest insurers handle CA 04 15
Groups among the largest commercial auto insurers that filed CA 04 15 or their own version in the past five years.
- Berkshire Hathaway GroupUses CA 04 15 in 42 filings
- Liberty Mutual GroupUses CA 04 15 in 4 filings
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States
Number of filings that include CA 04 15 in each state, Oct 2021 to Sep 2026. Darker states have more filings.
Often filed with
Standard-style form numbers that appear in the same filings most often.
- CA 00 01Business Auto Coverage Form197 filings
- CA 04 43Waiver Of Transfer Of Rights Of Recovery Against Others To Us (Waiver Of Subrogation) - Automatic When Required By Written Contract Or Agreement195 filings
- CA 23 17Truckers - Uniform Intermodal Interchange Endorsement Form UIIE-1188 filings
- CA 20 15Mobile Equipment166 filings
- CA 04 49Primary and Noncontributory - Other Insurance Condition160 filings
- CA 20 71Auto Loan/Lease Gap Coverage158 filings
- CA 20 06Driving Schools - Non-Owned Autos156 filings
- CA 23 45Public or Livery Passenger Conveyance and on- Demand Delivery Services Exclusion155 filings
- CA 20 54Employee Hired Autos154 filings
- CA 05 25Partners or Members as Insureds153 filings
Recent filings
Latest filings that include this form number. Filed copies open in FilingFocus.
| Submitted | Company | State | Editions | Tracking number |
|---|---|---|---|---|
| Sep 10, 2026 | SECURA Insurance, A Mutual Companyand 1 more | IL | 11 20 | SEIC-135044227 |
| Aug 28, 2026 | Jet Insurance Company | SC | 11 20 | MRTN-134878222 |
| Aug 27, 2026 | Philadelphia Indemnity Insurance Company | NM | 11 20 | PHLX-135063316 |
| Jul 8, 2026 | Colorado Farm Bureau Insurance Company | CO | 11 20 | SFBC-135011078 |
| Jul 1, 2026 | Employers Insurance Company of Wausauand 5 more | CO | 11 20 | LBRC-135000006 |
| Jun 25, 2026 | Selective Insurance Company of Americaand 3 more | CO | 11 20 | SELC-134998854 |
| Jun 24, 2026 | Great American Alliance Insurance Companyand 3 more | CO | 11 20 | GACX-134993563 |
| Jun 19, 2026 | Addison Insurance Companyand 1 more | CO | 11 20 | UNFG-134905846 |
| Jun 18, 2026 | Sompo America Fire and Marine Insurance Companyand 1 more | CO | 11 20 | SMPJ-134972831 |
| Jun 9, 2026 | General Security National Insurance Company | CO | 11 20 | PERR-134978283 |
| Jun 9, 2026 | General Security National Insurance Company | CO | 11 20 | PERR-134978297 |
| Jun 5, 2026 | Farm Bureau Property and Casualty Insurance Company | NE | 11 20 | FBLB-134973324 |
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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