Coverage description
An Insurance Services Office (ISO) standard form. It excludes auto liability coverage for the owner or renter of a rent-it-there/leave-it-here auto, meaning an auto a customer rents from someone else and leaves with you, when you do not own that auto.
How the form has changed
The 10 13 edition updates the coverage forms it applies to, the coverage name and the form date. The coverage wording is the same as 10 01.
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 | 161 | 91 | 12 | Nov 2021 to Aug 2026 |
| 10 01Oct 2001 | 8 | 6 | 5 | Jun 2022 to Jun 2025 |
What the filings show
- Edition in use: in the past 12 months, 45 companies filed the 10 13 edition.
- CA 20 27 (Registration Plates Not Issued for a Specific Auto) is filed alongside it most often, in 167 of the same filings (99%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Aug 2026, excluding withdrawn and rejected filings.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 12, out of 45 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Nationwide Corporation Group11 group companies filed it, led by Allied Insurance Company of America and Nationwide Mutual Insurance Company | 16 | 7 | 10 13 | Apr 7, 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 |
| 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 |
| 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 |
| MS & AD Insurance Group3 group companies filed it, led by Mitsui Sumitomo Insurance Company of America and Mitsui Sumitomo Insurance USA Inc. | 6 | 3 | 10 13 | Sep 4, 2025 |
| Selective Insurance Group4 group companies filed it, led by Selective Way Insurance Company and Selective Insurance Company of America | 6 | 2 | 10 13 | Jun 25, 2026 |
How the largest insurers handle CA 20 12
Groups among the largest commercial auto insurers that filed CA 20 12 or their own version in the past five years.
- Travelers GroupUses CA 20 12 in 65 filings
See more forms
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States
Number of filings that include CA 20 12 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 27Registration Plates Not Issued for a Specific Auto167 filings
- CA 99 16Hired Autos Specified as Covered Autos You Own167 filings
- CA 99 23Rental Reimbursement Coverage167 filings
- CA 20 70Coverage for Certain Operations in Connection with Railroads166 filings
- CA 99 33Employees as Insureds166 filings
- CA 99 40Exclusion or Excess Coverage Hazards Otherwise Insured166 filings
- CA 99 47Employee as Lessor166 filings
- CA 02 38Reinstatement of Insurance165 filings
- CA 04 44Waiver of Transfer of Rights of Recovery Against Others to Us (Waiver of Subrogation)164 filings
- CA 20 05Drive-Away Contractors164 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 |
| 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 |
| May 19, 2026 | Farmers Alliance Mutual Insurance Company | CO | 10 13 | FAMI-134934257 |
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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