Coverage description
An Insurance Services Office (ISO) standard form. It extends the coverage territory to Mexico for accidents or losses within 25 miles of the United States border on trips of 10 days or less, on an excess basis, with physical damage losses paid in the United States and no coverage for autos not garaged and used in the United States or for insureds who are not United States residents.
How the form has changed
The 10 13 edition updates the coverage forms it applies to and the schedule layout. The coverage wording is the same as 02 99.
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 | 268 | 109 | 43 | Nov 2021 to Aug 2026 |
| 02 99Feb 1999 | 9 | 6 | 3 | Jun 2022 to Jun 2025 |
2 other edition dates appear in one or two filings each, often carrier-specific versions: 03 24, 11 20.
Where filings record what this form replaced, they name earlier edition 02 99. Only some filings record replacements.
What the filings show
- Edition in use: in the past 12 months, 43 companies filed the 10 13 edition.
- CA 20 48 (Designated Insured for Covered Autos Liability Coverage) is filed alongside it most often, in 266 of the same filings (95%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Aug 2026, excluding withdrawn and rejected filings.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 01 21, out of 55 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 |
| 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 |
| Berkshire Hathaway Group6 group companies filed it, led by Berkshire Hathaway Homestate Insurance Company and Berkshire Hathaway Direct Insurance Company | 15 | 13 | 10 13 | Jun 30, 2025 |
| 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 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 |
| MS & AD Insurance Group3 group companies filed it, led by Mitsui Sumitomo Insurance Company of America and Transverse Insurance Company | 9 | 5 | 10 13 | Sep 4, 2025 |
How the largest insurers handle CA 01 21
Groups among the largest commercial auto insurers that filed CA 01 21 or their own version in the past five years.
- Progressive GroupUses CA 01 21 in 2 filings
- Travelers GroupUses CA 01 21 in 64 filings
- Berkshire Hathaway GroupUses CA 01 21 in 15 filings
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States
Number of filings that include CA 01 21 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 Coverage266 filings
- CA 99 33Employees as Insureds265 filings
- CA 04 44Waiver of Transfer of Rights of Recovery Against Others to Us (Waiver of Subrogation)254 filings
- CA 20 55Fellow Employee Coverage247 filings
- CA 99 16Hired Autos Specified as Covered Autos You Own246 filings
- CA 99 30Tapes, Records and Discs Coverage244 filings
- IL 00 21Nuclear Energy Liability Exclusion Endorsement244 filings
- CA 23 05Wrong Delivery of Liquid Products242 filings
- CA 99 10Drive Other Car Coverage – Broadened Coverage for Named Individuals237 filings
- CA 99 48Pollution Liability – Broadened Coverage for Covered Autos – Business Auto and Motor Carrier Coverage Forms237 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 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 |
| Jun 17, 2026 | Clear Blue Insurance Company | MA | 10 13 | WESA-134946941 |
| Jun 11, 2026 | CopperPoint Casualty Insurance Companyand 1 more | SC | 10 13 | COPP-134982457 |
| 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 |
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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