Coverage description
An Insurance Services Office (ISO) standard form. It adds a separate products-completed operations aggregate limit to the umbrella coverage part and restates the other limits, including how nonconcurrent or claims-made underlying insurance reduces the retained limit.
How the form has changed
2 changes across 2 revisions, newest first. Each edition is compared with the one before it, using wording from filed copies.
12 19 edition
Dec 2019, compared with 09 18Latest editionWhen underlying insurance is claims-made, the retained limit is reduced only by claims made during the umbrella policy period or its extended reporting period.
09 18
Not in this edition
12 19
“if any "underlying insurance" is written on a claims-made basis”
09 18 edition
Sep 2018, compared with 12 05When underlying insurance has a nonconcurrent policy period, the retained limit is reduced only by injury or damage that occurs, or offenses committed, during the umbrella policy period.
12 05
Not in this edition
09 18
“with a policy period that is nonconcurrent with the policy period”
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 | 46 | 25 | 16 | May 2022 to Aug 2026 |
| 09 18Sep 2018 | 3 | 7 | 2 | Aug 2023 to Oct 2026 |
| 12 05Dec 2005 | 7 | 3 | 2 | Jun 2022 to Jun 2026 |
What the filings show
- Edition in use: in the past 12 months, 11 companies filed the 12 19 edition and 3 companies filed 09 18.
- CU 24 03 (Waiver Of Transfer Of Rights Of Recovery Against Others To Us (Waiver Of Subrogation)) is filed alongside it most often, in 46 of the same filings (90%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Oct 2026, excluding withdrawn and rejected filings.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 36, out of 19 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Nationwide Corporation Group3 group companies filed it, led by Nationwide Agribusiness Insurance Company and Crestbrook Insurance Company | 7 | 2 | 12 0512 19 | 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 |
| Amtrust Financial Services Group7 group companies filed it, led by Security National Insurance Company and Technology Insurance Company, Inc. | 3 | 2 | 09 18 | Oct 15, 2026 |
| Arbella Insurance GroupArbella Protection Insurance Company, Inc. | 3 | 2 | 12 19 | Nov 28, 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 |
| Liberty Mutual GroupState Automobile Mutual Insurance Company | 2 | 2 | 12 19 | Mar 10, 2023 |
| Mountain West Farm GroupMountain West Farm Bureau Mutual Insurance Company | 2 | 2 | 12 19 | Oct 16, 2023 |
How the largest insurers handle CU 24 36
Groups among the largest commercial umbrella and excess insurers that filed CU 24 36 or their own version in the past five years.
- Chubb Limited GroupUses CU 24 36 in 1 filing
- Berkshire Hathaway GroupUses CU 24 36 in 1 filing
- Fairfax Financial GroupFiles its own version: ECO-XS-2005 (02-23) Products-Completed Operations Aggregate Limit of Insurance (1 state)
See more forms
Search related forms, compare editions, and research carrier filings with FilingFocus.
States
Number of filings that include CU 24 36 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 24 03Waiver Of Transfer Of Rights Of Recovery Against Others To Us (Waiver Of Subrogation)46 filings
- CU 21 01Exclusion - Athletic or Sports Participants44 filings
- CU 21 08Exclusion - Intercompany Products Suits44 filings
- CU 21 17Exclusion - Designated Operations Covered By A Controlled (Wrap-Up) Insurance Program44 filings
- CU 22 18Optical and Hearing Aid Establishments44 filings
- CU 22 21Colleges or Schools44 filings
- CU 24 29Businessowners Liability Changes44 filings
- CU 25 01Designated Project(s) Aggregate Limit Of Insurance44 filings
- CU 22 20Pharmacists43 filings
- CU 22 39Driving Schools - Non- Owned Autos43 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 | 12 19 | PHLX-135041545 |
| Jun 30, 2026 | The Medical Protective Companyand 1 more | IL | 12 19 | MDPC-135002488 |
| Jun 30, 2026 | Crestbrook Insurance Companyand 1 more | CO | 12 1912 05 | 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 14, 2026 | Insurance Services Office, Inc. | VA | 12 19 | ISOF-134799407 |
| Nov 22, 2025 | The Medical Protective Companyand 1 more | WA | 12 19 | MDPC-134692417 |
| Jun 27, 2025 | Church Mutual Insurance Company, S.I. | CO | 12 19 | CHMU-134582751 |
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
See more carrier forms
Search forms by carrier, line of business, state, and wording with FilingFocus.