Coverage description
An Insurance Services Office (ISO) standard form. It waives the insurer's right to recover from anyone you agreed to waive it for in a written contract made before the accident or loss, without naming them in a schedule.
How the form has changed
The 12 23 edition corrects a typo ("contact" to "contract"). The coverage is the same as 11 20.
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 12 23Dec 2023Latest | 219 | 110 | 50 | Dec 2022 to Sep 2026 |
| 11 20Nov 2020 | 211 | 110 | 46 | Nov 2021 to Jul 2026 |
1 other edition date appears in one or two filings each, often carrier-specific versions: 11 00.
What the filings show
- Edition in use: in the past 12 months, 48 companies filed the 12 23 edition and 13 companies filed 11 20.
- CA 00 20 (Motor Carrier Coverage Form) is filed alongside it most often, in 296 of the same filings (69%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Sep 2026, excluding withdrawn and rejected filings.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 04 43, out of 66 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Berkshire Hathaway Group6 group companies filed it, led by National Liability and Fire Insurance Company and National Indemnity Company | 78 | 43 | 12 2311 2011 00 | May 5, 2026 |
| Insurance Services Office, Inc.Advisory Organization | 44 | 42 | 12 23 | Nov 3, 2023 |
| Clear Blue Financial Group2 group companies filed it, led by Clear Blue Insurance Company and Rock Ridge Insurance Company | 42 | 35 | 11 2012 23 | Jun 17, 2026 |
| OBS Holdings Group2 group companies filed it, led by Obsidian Insurance Company and Obsidian Pacific Insurance Company | 36 | 36 | 11 20 | Feb 3, 2023 |
| Nationwide Corporation Group11 group companies filed it, led by Nationwide Agribusiness Insurance Company and Crestbrook Insurance Company | 28 | 14 | 12 2311 20 | Aug 7, 2026 |
| OLD Republic Group4 group companies filed it, led by BITCO General Insurance Corporation and BITCO National Insurance Company | 16 | 2 | 12 2311 20 | Aug 14, 2026 |
| Arch Insurance Group3 group companies filed it, led by Arch Insurance Company and Arch Indemnity Insurance Company | 14 | 2 | 12 2311 20 | Apr 8, 2026 |
| MS & AD Insurance Group3 group companies filed it, led by Mitsui Sumitomo Insurance Company of America and Mitsui Sumitomo Insurance USA Inc. | 10 | 5 | 12 2311 20 | Aug 27, 2025 |
| Scor GroupGeneral Security National Insurance Company | 10 | 1 | 11 20 | Jun 9, 2026 |
| Tokio Marine Holdings Incorporated Group2 group companies filed it, led by Safety National Casualty Corporation and Philadelphia Indemnity Insurance Company | 9 | 4 | 12 2311 20 | Aug 27, 2026 |
How the largest insurers handle CA 04 43
Groups among the largest commercial auto insurers that filed CA 04 43 or their own version in the past five years.
- Progressive GroupUses CA 04 43 in 1 filing
- Berkshire Hathaway GroupUses CA 04 43 in 42 filings
- Old Republic GroupUses CA 04 43 in 3 filings
- Liberty Mutual GroupUses CA 04 43 in 4 filings
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States
Number of filings that include CA 04 43 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 00 20Motor Carrier Coverage Form296 filings
- CA 23 17Truckers – Uniform Intermodal Interchange Endorsement Form Uiie – 1263 filings
- CA 28 03Abuse or Molestation Exclusion for Covered Autos Liability Exposure261 filings
- CA 04 49Primary and Noncontributory – Other Insurance Condition237 filings
- CA 20 01Lessor – Additional Insured and Loss Payee230 filings
- CA 20 54Employee Hired Autos230 filings
- CA 04 44Waiver of Transfer of Rights of Recovery Against Others to Us (Waiver of Subrogation)225 filings
- CA 20 71Auto Loan/Lease Gap Coverage225 filings
- CA 27 05Unmanned Aircraft Exclusion for General Liability Coverages222 filings
- CA 23 30Motor Carrier Endorsement218 filings
Recent filings
Latest filings that include this form number. Filed copies open in FilingFocus.
| Submitted | Company | State | Editions | Tracking number |
|---|---|---|---|---|
| Sep 10, 2026 | SECURA Insurance, A Mutual Companyand 1 more | IL | 12 23 | SEIC-135044227 |
| Aug 27, 2026 | Philadelphia Indemnity Insurance Company | NM | 12 23 | PHLX-135063316 |
| Aug 14, 2026 | BITCO General Insurance Corporation | CA | 12 23 | LDDX-135054813 |
| Aug 14, 2026 | BITCO National Insurance Company | CA | 12 23 | LDDX-135056337 |
| Aug 7, 2026 | Scottsdale Indemnity Company | CA | 12 23 | NWPP-G135047524 |
| Jul 8, 2026 | Colorado Farm Bureau Insurance Company | CO | 12 23 | SFBC-135011078 |
| Jul 1, 2026 | Employers Insurance Company of Wausauand 5 more | CO | 11 20 | LBRC-135000006 |
| Jun 30, 2026 | Accredited Surety and Casualty Company, Inc. | CO | 11 20 | ACSA-135005169 |
| Jun 25, 2026 | Selective Insurance Company of Americaand 3 more | CO | 12 23 | SELC-134998854 |
| Jun 24, 2026 | Great American Alliance Insurance Companyand 3 more | CO | 11 20 | GACX-134993563 |
| Jun 19, 2026 | Addison Insurance Companyand 1 more | CO | 12 23 | UNFG-134905846 |
| Jun 18, 2026 | Sompo America Fire and Marine Insurance Companyand 1 more | CO | 12 23 | SMPJ-134972831 |
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 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
- CA 99 10 Drive Other Car Coverage - Broadened Coverage For Named Individuals
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