Coverage description
An Insurance Services Office (ISO) standard form. It pays your expenses to rent an auto when a scheduled covered auto has a covered loss, starting 24 hours after the loss and lasting for the repair time or the days shown, up to the daily and period maximums, with no deductible. It does not apply while spare or reserve autos are available.
How the form has changed
The 10 13 and 09 27 editions update the coverage forms it applies to, capitalization and 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 |
|---|---|---|---|---|
| 09 27Sep 2027Latest | 28 | 1 | 27 | Aug 2026 to Sep 2026 |
| 10 13Oct 2013 | 246 | 136 | 32 | Nov 2021 to Sep 2026 |
| 03 10Mar 2010 | 10 | 7 | 6 | Jun 2022 to Mar 2026 |
| 12 93Dec 1993 | 7 | 8 | 6 | Dec 2022 to Dec 2023 |
What the filings show
- Edition in use: in the past 12 months, 54 companies filed the 10 13 edition and 2 companies filed 03 10.
- The latest edition, 09 27, has been filed by Insurance Services Office, Inc in 27 states since Aug 20, 2026. No carrier filings list it yet.
- CA 99 30 (Tapes, Records and Discs Coverage) is filed alongside it most often, in 259 of the same filings (89%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Sep 2026, excluding withdrawn and rejected filings.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 23, out of 73 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Insurance Services Office, Inc.Advisory Organization | 28 | 27 | 09 27 | Sep 17, 2026 |
| Cincinnati Financial Group3 group companies filed it, led by The Cincinnati Casualty Company and The Cincinnati Indemnity Company | 19 | 16 | 10 1312 93 | Jul 12, 2024 |
| 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 |
| 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 Mitsui Sumitomo Insurance USA Inc. | 8 | 5 | 10 13 | Sep 4, 2025 |
| 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 99 23
Groups among the largest commercial auto insurers that filed CA 99 23 or their own version in the past five years.
- Progressive GroupUses CA 99 23 in 2 filings
- Travelers GroupUses CA 99 23 in 64 filings
- Berkshire Hathaway GroupFiles its own version: BA 99 23 Rental Reimbursement Coverage (37 states)
- Liberty Mutual GroupFiles its own version: AC 99 32 Rental Reimbursement Coverage (16 states)
See more forms
Search related forms, compare editions, and research carrier filings with FilingFocus.
States
Number of filings that include CA 99 23 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 99 30Tapes, Records and Discs Coverage259 filings
- CA 99 44Loss Payable Clause248 filings
- CA 00 01Business Auto Coverage Form246 filings
- CA 99 47Employee as Lessor243 filings
- CA 99 33Employees as Insureds241 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 Forms236 filings
- CA 20 48Designated Insured for Covered Autos Liability Coverage235 filings
- CA 04 45Golf Carts and Low- Speed Vehicles231 filings
- CA 99 37Garagekeepers Coverage231 filings
Recent filings
Latest filings that include this form number. Filed copies open in FilingFocus.
| Submitted | Company | State | Editions | Tracking number |
|---|---|---|---|---|
| Sep 17, 2026 | Insurance Services Office, Inc. | CA | 09 27 | ISOF-135093307 |
| 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 |
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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