Coverage description
An Insurance Services Office (ISO) standard form. It waives the insurer's right to recover from scheduled persons or organizations for covered auto losses, to the extent you waived those rights in a contract before the accident or loss.
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 09 18Sep 2018Latest | 62 | 45 | 23 | Dec 2021 to Oct 2026 |
2 other edition dates appear in one or two filings each, often carrier-specific versions: 11 94, 04 92.
Where filings record what this form replaced, they name other forms CU 93. Only some filings record replacements.
What the filings show
- Edition in use: in the past 12 months, 21 companies filed the 09 18 edition.
- CU 21 64 (Auto Dealers Exclusion - Designated Work) is filed alongside it most often, in 51 of the same filings (80%).
Filed under
Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Oct 2026, excluding withdrawn and rejected filings.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 CU 24 01, out of 24 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Grinnell Mutual GroupGrinnell Mutual Reinsurance Company | 10 | 10 | 09 18 | Mar 26, 2024 |
| Tokio Marine Holdings Incorporated Group2 group companies filed it, led by Safety National Casualty Corporation and Philadelphia Indemnity Insurance Company | 7 | 3 | 09 18 | Aug 11, 2026 |
| Grange Mutual CAS GroupGrange Insurance Company | 6 | 6 | 09 18 | Mar 26, 2024 |
| Church Mutual GroupChurch Mutual Insurance Company, S.I. | 5 | 2 | 09 18 | Jun 26, 2026 |
| Sompo GroupSompo America Insurance Company | 5 | 1 | 09 18 | Jun 15, 2026 |
| Amtrust Financial Services Group7 group companies filed it, led by CorePointe Insurance Company and Milford Casualty Insurance Company | 4 | 2 | 09 18 | Oct 15, 2026 |
| James River GroupFalls Lake National Insurance Company | 4 | 4 | 09 18 | Jan 13, 2023 |
| American European Group2 group companies filed it, led by American European Insurance Company and Rutgers Casualty Ins Co | 2 | 2 | 09 18 | Apr 17, 2023 |
| Berkshire Hathaway Group2 group companies filed it, led by The Medical Protective Company and Wellfleet Insurance Company | 2 | 2 | 09 18 | Jun 30, 2026 |
| Liberty Mutual Group2 group companies filed it, led by American States Insurance Company and Safeco Insurance Company of America | 2 | 1 | 04 9211 94 | Aug 18, 2025 |
How the largest insurers handle CU 24 01
Groups among the largest commercial umbrella and excess insurers that filed CU 24 01 or their own version in the past five years.
- Berkshire Hathaway GroupUses CU 24 01 in 1 filing
- Fairfax Financial GroupUses CU 24 01 in 1 filing
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States
Number of filings that include CU 24 01 in each state, Oct 2021 to Oct 2026. Darker states have more filings.
Often filed with
Standard-style form numbers that appear in the same filings most often.
- CU 21 64Auto Dealers Exclusion - Designated Work51 filings
- CU 34 05Exclusion Of Federal Employees Using Autos In Government Business51 filings
- CU 34 06Amphibious Vehicles51 filings
- CU 21 61Auto Dealers Exclusion - Designated Products50 filings
- CU 24 34Auto Dealers Products And Work Aggregate Limit Of Insurance47 filings
- CU 24 03Waiver of Transfer of Rights of Recovery Against Others to Us (Waiver of Subrogation)46 filings
- CU 34 10Exclusion - Athletic Or Sports Participants - All Contests Or Exhibitions46 filings
- CU 22 37Motor Carrier Endorsement45 filings
- CU 34 17Exclusion - Earth Movement45 filings
- CU 34 18Exclusion - Earth Movement - Completed Operations45 filings
Recent filings
Latest filings that include this form number. Filed copies open in FilingFocus.
| Submitted | Company | State | Editions | Tracking number |
|---|---|---|---|---|
| Oct 15, 2026 | Security National Insurance Companyand 2 more | CA | 09 18 | UNKP-135059588 |
| Aug 11, 2026 | Philadelphia Indemnity Insurance Company | SC | 09 18 | PHLX-135041545 |
| Jul 2, 2026 | Zenith Insurance Company | CA | 09 18 | ZICO-134998423 |
| Jun 30, 2026 | The Medical Protective Companyand 1 more | IL | 09 18 | MDPC-135002488 |
| Jun 26, 2026 | Church Mutual Insurance Company, S.I. | CO | 09 18 | CHMU-134995025 |
| Jun 19, 2026 | Berkley Casualty Companyand 8 more | CO | 09 18 | BNIC-134992815 |
| Jun 19, 2026 | Addison Insurance Companyand 1 more | CO | 09 18 | UNFG-134979875 |
| Jun 15, 2026 | Sompo America Insurance Company | CO | 09 18 | SMPJ-134971280 |
| Jun 2, 2026 | Philadelphia Indemnity Insurance Company | IL | 09 18 | PHLX-134967828 |
| Feb 17, 2026 | Safety National Casualty Corporation | CO | 09 18 | SFCC-134815068 |
| Nov 22, 2025 | The Medical Protective Companyand 1 more | WA | 09 18 | MDPC-134692417 |
| Aug 18, 2025 | American States Insurance Company | WY | 04 92 | LBRC-134640495 |
Most filed ISO CU forms
- CU 34 54 Exclusion - Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS)
- CU 21 86 Exclusion – Access Or Disclosure Of Confidential Or Personal Material Or Information
- CU 00 05 Exclusion - Violation of Law Addressing Data Privacy
- CU 34 56 Exclusion – Cyber Incident
- CU DS 01 Commercial Liability Umbrella Declarations
- CU 21 88 Exclusion - Access Or Disclosure Of Confidential Or Personal Material Or Information (Coverage B Only)
- CU 34 44 Broad Abuse or Molestation Exclusion
- CU 34 55 Exclusion - Electronic Data - Deletion Of Bodily Injury Exception
- CU 22 37 Motor Carrier Endorsement
- CU 21 87 Exclusion - Access Or Disclosure Of Confidential Or Personal Information and Data-Related Liability - Limited Bodily Injury Exception Not Included
- CU 04 02 Loss Of Electronic Data Resulting From Physical Injury To Tangible Property Liability Coverage - Subject To Cyber Incident Exclusion
- CU 04 54 Loss of Electronic Data Resulting From Physical Injury To Tangible Property Liability Coverage - Subject To Cyber Incident Exclusion - Deletion Of Bodily Injury Exception
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