Coverage description
An Insurance Services Office (ISO) standard form. It extends liability, auto medical payments, uninsured and underinsured motorists and physical damage coverage to autos you don't own when used by individuals named in the schedule and their spouses or family members, except autos they own and autos used while working in an auto business.
How the form has changed
1 change across 1 revision, newest first. Each edition is compared with the one before it, using wording from filed copies.
09 27 edition
Sep 2027, compared with 10 13Latest editionSpecified causes of loss physical damage coverage, with its own deductible, can now be provided for the named individuals in addition to comprehensive and collision.
10 13
Not in this edition
09 27
“Specified Causes Of Loss Deductible: $”
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 09 27Sep 2027Latest | 26 | 1 | 25 | Aug 2026 to Aug 2026 |
| 10 13Oct 2013 | 328 | 136 | 44 | Nov 2021 to Sep 2026 |
| 03 10Mar 2010 | 15 | 9 | 6 | Jun 2022 to Jun 2026 |
| 09 02Sep 2002 | 6 | 4 | 2 | May 2022 to Jun 2026 |
1 other edition date appears in one or two filings each, often carrier-specific versions: 12 93.
Where filings record what this form replaced, they name earlier edition 09 02 and other forms AP 91 11. Only some filings record replacements.
What the filings show
- Edition in use: in the past 12 months, 65 companies filed the 10 13 edition and 5 companies filed 03 10.
- The latest edition, 09 27, has been filed by Insurance Services Office, Inc in 25 states since Aug 20, 2026. No carrier filings list it yet.
- CA 20 48 (Designated Insured for Covered Autos Liability Coverage) is filed alongside it most often, in 313 of the same filings (83%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Sep 2026, excluding withdrawn and rejected filings.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 99 10, out of 67 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Berkshire Hathaway Group18 group companies filed it, led by National Liability and Fire Insurance Company and National Indemnity Company | 45 | 25 | 10 1303 10 | Jul 9, 2026 |
| Clear Blue Financial Group2 group companies filed it, led by Clear Blue Insurance Company and Rock Ridge Insurance Company | 37 | 34 | 10 13 | Jun 17, 2026 |
| OBS Holdings GroupObsidian Insurance Company | 37 | 35 | 10 13 | Apr 17, 2023 |
| Insurance Services Office, Inc.Advisory Organization | 26 | 25 | 09 27 | Aug 26, 2026 |
| Cincinnati Financial Group3 group companies filed it, led by The Cincinnati Casualty Company and The Cincinnati Indemnity Company | 22 | 17 | 10 13 | Jun 26, 2026 |
| Liberty Mutual Group4 group companies filed it, led by State Automobile Mutual Insurance Company and Milbank Insurance Company | 16 | 2 | 10 1309 02 | Jun 17, 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 |
| Nationwide Corporation Group11 group companies filed it, led by Nationwide Mutual Insurance Company and Allied Insurance Company of America | 13 | 5 | 10 13 | Apr 7, 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 |
How the largest insurers handle CA 99 10
Groups among the largest commercial auto insurers that filed CA 99 10 or their own version in the past five years.
- Progressive GroupUses CA 99 10 in 1 filing
- Travelers GroupUses CA 99 10 in 62 filings
- Berkshire Hathaway GroupUses CA 99 10 in 32 filings
See more forms
Search related forms, compare editions, and research carrier filings with FilingFocus.
States
Number of filings that include CA 99 10 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 20 48Designated Insured for Covered Autos Liability Coverage313 filings
- CA 99 33Employees as Insureds289 filings
- CA 99 30Tapes, Records and Discs Coverage287 filings
- CA 23 05Wrong Delivery of Liquid Products285 filings
- CA 99 48Pollution Liability – Broadened Coverage for Covered Autos – Business Auto and Motor Carrier Coverage Forms279 filings
- CA 99 16Hired Autos Specified as Covered Autos You Own278 filings
- CA 04 44Waiver of Transfer of Rights of Recovery Against Others to Us (Waiver of Subrogation)265 filings
- CA 04 49Primary and Noncontributory – Other Insurance Condition261 filings
- CA 20 55Fellow Employee Coverage260 filings
- IL 00 21Nuclear Energy Liability Exclusion Endorsement256 filings
Recent filings
Latest filings that include this form number. Filed copies open in FilingFocus.
| Submitted | Company | State | Editions | Tracking number |
|---|---|---|---|---|
| Sep 4, 2026 | Incline Casualty Company | SC | 10 13 | AIAD-135047572 |
| Aug 28, 2026 | Jet Insurance Company | SC | 10 13 | MRTN-134878222 |
| Aug 26, 2026 | Insurance Services Office, Inc. | LA | 09 27 | ISOF-135053020 |
| Aug 26, 2026 | Insurance Services Office, Inc. | TX | 09 27 | ISOF-135053045 |
| Aug 26, 2026 | Insurance Services Office, Inc. | TX | 09 27 | ISOF-135066694 |
| Aug 25, 2026 | Insurance Services Office, Inc. | OK | 09 27 | ISOF-135053037 |
| Aug 21, 2026 | Insurance Services Office, Inc. | AR | 09 27 | ISOF-135052987 |
| Aug 21, 2026 | Insurance Services Office, Inc. | MS | 09 27 | ISOF-135053025 |
| Aug 21, 2026 | Insurance Services Office, Inc. | NJ | 09 27 | ISOF-135053031 |
| Aug 21, 2026 | Insurance Services Office, Inc. | ND | 09 27 | ISOF-135053035 |
| Aug 21, 2026 | Insurance Services Office, Inc. | VT | 09 27 | ISOF-135053047 |
| Aug 20, 2026 | Insurance Services Office, Inc. | AZ | 09 27 | ISOF-135052986 |
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
Search forms by carrier, line of business, state, and wording with FilingFocus.