Coverage description
An Insurance Services Office (ISO) standard form. It excludes umbrella coverage for bodily injury or property damage from your ongoing or completed operations at the scheduled locations when you are enrolled in a controlled (wrap-up) insurance program for them, even if that program is inadequate or ends.
How the form has changed
2 changes across 1 revision, newest first. Each edition is compared with the one before it, using wording from filed copies.
12 19 edition
Dec 2019, compared with 09 00Latest editionThe exclusion now applies only if you are enrolled in a controlled wrap-up program for the injury or damage at the location, instead of whenever the prime contractor or owner provided a wrap-up program.
09 00
“as a consolidated (wrap-up) insurance program has been provided by the prime contractor/project manager or owner”
12 19
“but only if you are enrolled in a "controlled (wrap-up) insurance program"”
Adds a definition of a controlled wrap-up program as a centralized program in which one party secures insurance or self-insurance for some or all contractors on specific projects.
09 00
Not in this edition
12 19
“means a centralized insurance program under which one party has secured either insurance or”
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 12 19Dec 2019Latest | 51 | 25 | 21 | Mar 2022 to Aug 2026 |
| 09 00Sep 2000 | 11 | 8 | 5 | Jun 2022 to Jun 2026 |
2 other edition dates appear in one or two filings each, often carrier-specific versions: 03 99, 04 92.
What the filings show
- Edition in use: in the past 12 months, 10 companies filed the 12 19 edition and 3 companies filed 09 00.
- CU 24 03 (Waiver Of Transfer Of Rights Of Recovery Against Others To Us (Waiver Of Subrogation)) is filed alongside it most often, in 63 of the same filings (98%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Aug 2026, excluding withdrawn and rejected filings.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 CU 21 17, out of 22 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Grinnell Mutual GroupGrinnell Mutual Reinsurance Company | 9 | 9 | 12 19 | Mar 22, 2023 |
| Nationwide Corporation Group3 group companies filed it, led by Nationwide Agribusiness Insurance Company and Crestbrook Insurance Company | 7 | 2 | 09 00 | Jun 30, 2026 |
| Tokio Marine Holdings Incorporated Group2 group companies filed it, led by Safety National Casualty Corporation and Philadelphia Indemnity Insurance Company | 7 | 3 | 12 19 | Aug 11, 2026 |
| Grange Mutual CAS GroupGrange Insurance Company | 6 | 6 | 12 19 | Mar 26, 2024 |
| Church Mutual GroupChurch Mutual Insurance Company, S.I. | 5 | 2 | 12 19 | Jun 26, 2026 |
| Sompo GroupSompo America Insurance Company | 5 | 1 | 12 19 | Jun 15, 2026 |
| Liberty Mutual Group3 group companies filed it, led by State Automobile Mutual Insurance Company and American States Insurance Company | 4 | 3 | 12 1903 9904 92 | Aug 18, 2025 |
| Arbella Insurance GroupArbella Protection Insurance Company, Inc. | 3 | 3 | 12 19 | Oct 31, 2023 |
| Berkshire Hathaway Group2 group companies filed it, led by The Medical Protective Company and Wellfleet Insurance Company | 2 | 2 | 12 19 | Jun 30, 2026 |
| Encova Mutual Insurance Group3 group companies filed it, led by Motorists Mutual Insurance Company and Wilson Mutual Insurance Company | 2 | 2 | 09 00 | Jun 25, 2024 |
How the largest insurers handle CU 21 17
Groups among the largest commercial umbrella and excess insurers that filed CU 21 17 or their own version in the past five years.
- Chubb Limited GroupUses CU 21 17 in 1 filing
- Berkshire Hathaway GroupUses CU 21 17 in 1 filing
- Fairfax Financial GroupUses CU 21 17 in 1 filing
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States
Number of filings that include CU 21 17 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.
- CU 24 03Waiver Of Transfer Of Rights Of Recovery Against Others To Us (Waiver Of Subrogation)63 filings
- CU 21 01Exclusion - Athletic Or Sports Participants60 filings
- CU 21 08Exclusion - Intercompany Products Suits60 filings
- CU 22 18Optical And Hearing Aid Establishments59 filings
- CU 22 21Colleges Or Schools59 filings
- CU 22 20Pharmacists56 filings
- CU 22 63Pharmacists - Broadened Coverage56 filings
- CU 24 15Fellow Employee Auto Coverage For Designated Employees/Positions55 filings
- CU 24 80Waiver Of Transfer Of Rights Of Recovery Against Others To Us (Waiver Of Subrogation) - Automatic55 filings
- CU 34 23Cannabis Exclusion With Hemp Exception53 filings
Recent filings
Latest filings that include this form number. Filed copies open in FilingFocus.
| Submitted | Company | State | Editions | Tracking number |
|---|---|---|---|---|
| Aug 11, 2026 | Philadelphia Indemnity Insurance Company | SC | 12 19 | PHLX-135041545 |
| Jul 2, 2026 | Zenith Insurance Company | CA | 12 19 | ZICO-134998423 |
| Jun 30, 2026 | The Medical Protective Companyand 1 more | IL | 12 19 | MDPC-135002488 |
| Jun 30, 2026 | Crestbrook Insurance Companyand 1 more | CO | 09 00 | NWPP-135003098 |
| Jun 26, 2026 | Church Mutual Insurance Company, S.I. | CO | 12 19 | CHMU-134995025 |
| Jun 19, 2026 | Addison Insurance Companyand 1 more | CO | 12 19 | UNFG-134979875 |
| Jun 15, 2026 | Sompo America Insurance Company | CO | 12 19 | SMPJ-134971280 |
| Jun 2, 2026 | Philadelphia Indemnity Insurance Company | IL | 12 19 | PHLX-134967828 |
| Feb 17, 2026 | Safety National Casualty Corporation | CO | 12 19 | SFCC-134815068 |
| Jan 5, 2026 | Mississippi Farm Bureau Casualty Insurance Company | MS | 12 19 | SFBC-134775309 |
| Nov 22, 2025 | The Medical Protective Companyand 1 more | WA | 12 19 | MDPC-134692417 |
| Nov 11, 2025 | Southern Farm Bureau Casualty Insurance Company | LA | 09 00 | SFBC-134733493 |
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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