Coverage description
An Insurance Services Office (ISO) standard form. It limits umbrella coverage to bodily injury and property damage that occurs on the premises, or arises out of the project or operation, shown in the schedule, and to personal and advertising injury from business done there, including when claims-made endorsement CU 27 00 applies.
How the form has changed
5 changes across 2 revisions, newest first. Each edition is compared with the one before it, using wording from filed copies.
06 26 edition
Jun 2026, compared with 04 17Latest editionThe premises rule for wrongful eviction or entry offenses now covers rooms or premises occupied by an organization, not only by a person.
04 17
“premises that a person occupies,”
06 26
“premises that a person or organization occupies,”
04 17 edition
Apr 2017, compared with 09 00Coverage can now be limited to a designated operation as well as a premises or project.
09 00
“The project shown in the Schedule.”
04 17
“Arises out of the project or operation”
For premises, bodily injury or property damage must now occur on the scheduled premises or their grounds, instead of arising out of the ownership, maintenance or use of the premises.
09 00
“The ownership, maintenance or use of the premises shown”
04 17
“Occurs on the premises shown in the”
False arrest and wrongful eviction offenses must now arise out of business performed on the scheduled premises and be committed on those premises or their grounds.
09 00
Not in this edition
04 17
“then such offense must arise out of your”
The endorsement adds matching claims-made wording that applies when endorsement CU 27 00 is attached.
09 00
Not in this edition
04 17
“If Endorsement CU 27 00 is attached to the Policy,”
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 06 26Jun 2026Latest | 21 | 1 | 21 | Sep 2025 to Sep 2025 |
| 04 17Apr 2017 | 22 | 24 | 8 | May 2022 to Aug 2026 |
| 09 00Sep 2000 | 7 | 4 | 5 | Nov 2022 to Mar 2025 |
1 other edition date appears in one or two filings each, often carrier-specific versions: 04 92.
Where filings record what this form replaced, they name earlier edition 04 17. Only some filings record replacements.
What the filings show
- Edition in use: in the past 12 months, 7 companies filed the 04 17 edition.
- The latest edition, 06 26, has been filed by Insurance Services Office, Inc in 21 states since Sep 12, 2025. No carrier filings list it yet.
- CU 00 01 (Commercial Liability Umbrella Coverage Form) is filed alongside it most often, in 47 of the same filings (92%).
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 11, out of 23 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Insurance Services Office, Inc.Advisory Organization | 21 | 21 | 06 26 | Sep 30, 2025 |
| James River GroupFalls Lake National Insurance Company | 4 | 4 | 09 00 | Jan 13, 2023 |
| American European Group2 group companies filed it, led by American European Insurance Company and Rutgers Casualty Ins Co | 2 | 2 | 09 00 | Apr 17, 2023 |
| American Family Insurance GroupMidvale Indemnity Company | 2 | 2 | 04 17 | Sep 28, 2023 |
| Arbella Insurance GroupArbella Protection Insurance Company, Inc. | 2 | 2 | 04 17 | Oct 31, 2023 |
| Church Mutual GroupChurch Mutual Insurance Company, S.I. | 2 | 1 | 04 17 | Jun 15, 2023 |
| Southern Farm Bureau CAS Group2 group companies filed it, led by Mississippi Farm Bureau Casualty Insurance Company and Southern Farm Bureau Casualty Insurance Company | 2 | 2 | 04 17 | Jan 5, 2026 |
| AU Holding Company GroupContinental Indemnity Company | 1 | 1 | 04 17 | May 3, 2024 |
| BCBS OF MI GroupStar Insurance Company | 1 | 1 | 04 17 | Jul 22, 2026 |
| Berkshire Hathaway Group2 group companies filed it, led by The Medical Protective Company and Wellfleet Insurance Company | 1 | 1 | 04 17 | Nov 22, 2025 |
How the largest insurers handle CU 21 11
Groups among the largest commercial umbrella and excess insurers that filed CU 21 11 or their own version in the past five years.
- Chubb Limited GroupUses CU 21 11 in 1 filing
- Fairfax Financial GroupUses CU 21 11 in 1 filing
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States
Number of filings that include CU 21 11 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 00 01Commercial Liability Umbrella Coverage Form47 filings
- CU 21 42Exclusion – Exterior Insulation And Finish Systems46 filings
- CU 21 15Exclusion – Financial Services41 filings
- CU 22 01Exclusion – Property Entrusted41 filings
- CU 22 94Professional Liability Exclusion – Computer, Telecommunication, Electronic Data Or Internet Services (formerly titled Professional Liability Exclusion – Electronic Data Processing Services And Computer Consulting Or Programming Services)40 filings
- CU 24 30Amendment of Insured Contract Definition40 filings
- CU 22 13Exclusion – Underground Resources And Equipment39 filings
- CU 22 05Exclusion - Housing Projects Sites38 filings
- CU 22 08Exclusion – Saline Substances Contamination38 filings
- CU 22 24Exclusion – Telecommunication Equipment Or Service Providers Errors And Omissions38 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 | 04 17 | PHLX-135041545 |
| Jul 22, 2026 | Star Insurance Company | SC | 04 17 | ACCD-G134876003 |
| Jul 2, 2026 | Zenith Insurance Company | CA | 04 17 | ZICO-134998423 |
| Jan 5, 2026 | Mississippi Farm Bureau Casualty Insurance Company | MS | 04 17 | SFBC-134775309 |
| Nov 22, 2025 | The Medical Protective Companyand 1 more | WA | 04 17 | MDPC-134692417 |
| Nov 11, 2025 | Southern Farm Bureau Casualty Insurance Company | LA | 04 17 | SFBC-134733493 |
| Sep 30, 2025 | Insurance Services Office, Inc. | GA | 06 26 | ISOF-134687840 |
| Sep 16, 2025 | Insurance Services Office, Inc. | VT | 06 26 | ISOF-134664793 |
| Sep 15, 2025 | Insurance Services Office, Inc. | LA | 06 26 | ISOF-134664766 |
| Sep 15, 2025 | Insurance Services Office, Inc. | ME | 06 26 | ISOF-134664767 |
| Sep 15, 2025 | Insurance Services Office, Inc. | MD | 06 26 | ISOF-134664768 |
| Sep 15, 2025 | Insurance Services Office, Inc. | OK | 06 26 | ISOF-134664783 |
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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