Coverage description
An Insurance Services Office (ISO) standard form. It removes the fellow employee exclusion from auto liability coverage, so injury to one of your employees caused by a fellow employee is not excluded.
How the form has changed
The 10 13 edition updates the coverage forms it applies to, renames the liability coverage and changes the form date. The coverage wording 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 | 291 | 126 | 43 | Nov 2021 to Aug 2026 |
| 10 01Oct 2001 | 16 | 13 | 10 | Jun 2022 to Mar 2026 |
What the filings show
- Edition in use: in the past 12 months, 57 companies filed the 10 13 edition and 1 company filed 10 01.
- CA 20 48 (Designated Insured for Covered Autos Liability Coverage) is filed alongside it most often, in 283 of the same filings (92%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Aug 2026, excluding withdrawn and rejected filings.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 20 55, out of 62 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Clear Blue Financial Group2 group companies filed it, led by Clear Blue Insurance Company and Rock Ridge Insurance Company | 38 | 35 | 10 13 | Jun 17, 2026 |
| OBS Holdings Group2 group companies filed it, led by Obsidian Insurance Company and Obsidian Pacific Insurance Company | 38 | 36 | 10 13 | Apr 17, 2023 |
| 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 |
| Liberty Mutual Group2 group companies filed it, led by State Automobile Mutual Insurance Company and General Insurance Company of America | 11 | 2 | 10 13 | Jun 17, 2026 |
| Nationwide Corporation Group9 group companies filed it, led by Allied Insurance Company of America and Nationwide Insurance Company of America | 11 | 6 | 10 13 | Apr 7, 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 |
How the largest insurers handle CA 20 55
Groups among the largest commercial auto insurers that filed CA 20 55 or their own version in the past five years.
- Progressive GroupUses CA 20 55 in 2 filings
- Travelers GroupUses CA 20 55 in 62 filings
- Berkshire Hathaway GroupUses CA 20 55 in 3 filings
- Liberty Mutual GroupUses CA 20 55 in 1 filing
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States
Number of filings that include CA 20 55 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 20 48Designated Insured for Covered Autos Liability Coverage283 filings
- CA 99 30Tapes, Records and Discs Coverage282 filings
- CA 99 33Employees as Insureds282 filings
- CA 04 44Waiver of Transfer of Rights of Recovery Against Others to Us (Waiver of Subrogation)269 filings
- CA 99 16Hired Autos Specified as Covered Autos You Own269 filings
- CA 20 01Lessor – Additional Insured and Loss Payee261 filings
- CA 99 10Drive Other Car Coverage – Broadened Coverage for Named Individuals260 filings
- CA 04 49Primary and Noncontributory – Other Insurance Condition256 filings
- CA 99 48Pollution Liability – Broadened Coverage for Covered Autos – Business Auto and Motor Carrier Coverage Forms256 filings
- CA 20 54Employee Hired Autos251 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 |
| Jun 30, 2026 | Accredited Surety and Casualty Company, Inc. | CO | 10 13 | ACSA-135005169 |
| 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 | Society Insurance, a mutual company | CO | 10 13 | SCTY-134960697 |
| 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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